CN111595841A - Preparation method and application of array type chemical colorimetric vertical display analysis card - Google Patents
Preparation method and application of array type chemical colorimetric vertical display analysis card Download PDFInfo
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- CN111595841A CN111595841A CN202010429325.7A CN202010429325A CN111595841A CN 111595841 A CN111595841 A CN 111595841A CN 202010429325 A CN202010429325 A CN 202010429325A CN 111595841 A CN111595841 A CN 111595841A
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Abstract
The invention provides a preparation method and application of an array type chemical colorimetric vertical display analysis card, wherein the analysis card is made of a covering film and a Polydimethylsiloxane (PDMS) color development substrate, when the analysis card is used, an aluminum plastic bag is opened to take out the analysis card, a covering film layer is torn, a small amount of objects to be detected are wiped by the analysis card loaded with a detection reagent, the objects to be detected are ensured to be uniformly distributed in 9 areas of a reagent module of the analysis card, and after the objects to be detected are fully contacted with the reagent module for 10s, the objects to be detected are checked and compared with color development information on a specification, so that the types and specific names of the objects to be detected are determined. The functions of sampling, simultaneous contact with all detection reagents, color development, identification and operation instruction integration are really realized, the sampling operation steps and difficulty are greatly reduced, and the detection analysis efficiency and the accuracy of a test result are improved. The defects that reagents are sequentially dripped or detection reagents need to be mixed for use, sequence analysis is performed, and detection timeliness is poor are overcome.
Description
Technical Field
The invention belongs to the field of explosive residue detection and analysis, and particularly relates to a preparation method and application of an array type chemical colorimetric vertical display analysis card.
Background
At present, products aiming at rapid detection and analysis of explosives are increasingly mature, wherein products mainly used in the international society comprise a rapid detection reagent box, a dropping bottle, a spraying bottle, a detection pen, a kit, an explosive detector introducing machine vision and the like based on a chemical colorimetric qualitative analysis technology, and the products can realize detection and analysis of explosive residues.
However in practical application, but there is the condition of a great deal of inconvenience, carry inconvenient because of the volume causes, need use sampling paper to carry out sampling in advance or sampling ware material is hard can't accomplish the sampling in narrow and small spaces such as corner and increase the sampling degree of difficulty, need drop in proper order or need mix the use detect reagent because of detect reagent, the operation difficulty that the execution sequence analysis brought, the discernment difficulty that the ageing difference that changes color because of detect reagent brought, if can be with the sampling, contact simultaneously with all detect reagent, the color development, information and the operation description collection that discolours are in an organic whole and the material is soft, small in size easily carries, will bring very big promotion to the detection efficiency and the accuracy of explosive residue analysis.
Disclosure of Invention
The invention aims to provide a preparation method and application of an array type chemical colorimetric vertical display analysis card, wherein the analysis card is made of a covering film and a Polydimethylsiloxane (PDMS) color development substrate, when the array type chemical colorimetric vertical display analysis card is used, an aluminum plastic bag is opened to take out the analysis card, a covering film layer is torn, a small amount of to-be-detected objects are wiped by the analysis card loaded with a detection reagent, the to-be-detected objects are ensured to be uniformly distributed in 9 areas of a reagent module of the analysis card, and after the to-be-detected objects and the reagent module are fully contacted for 10s, the to-be-detected objects are checked, corrected and compared with color development information on a specification, so that the types and specific. Can really realize the sampling, contact simultaneously with all detect reagent, the colour development, discernment, the function of operation description integration, and this analysis card material is soft, the physical and chemical properties is stable, the sampling operation step and the degree of difficulty that significantly reduces can contact sampling and all detect reagent simultaneously, the colour development, information and operation description collection in an organic whole discolour, and the material is soft, small in size easily carries, the operating time and the check-out time that significantly reduce improve the accuracy of detection analysis efficiency and test result. The defects that reagents are sequentially dripped or detection reagents need to be mixed for use, sequence analysis is performed, and detection timeliness is poor are overcome.
The invention relates to a preparation method of an array type chemical colorimetric vertical display analysis card, which is prepared from a coating film (1) and a polydimethylsiloxane chromogenic substrate (2), wherein the coating film (1) consists of a non-woven fabric (3) with adhesive back and an isolating film (4), and the isolating film (4) is made of polyethylene glycol terephthalate; be provided with the array that 9 spill cuboid (5) structures are constituteed in polydimethylsiloxane chromogenic substrate (2), place reagent module (6) in cuboid (5), reagent module (6) and description (8) go up the discolour information one-to-one correspondence of explosive detection test agent, and concrete operation is gone on according to following step:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction (8) on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid (5) structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3-5 hours at the temperature of 60-70 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate (2);
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 4:1-6:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring into 9 concave cuboids (5) arranged in a dimethyl siloxane developing substrate (2), and forming a reagent module protective layer (7) after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules (6), and then putting the reagent modules (6) into 9 concave cuboids (5) one by one according to the sequence of objects to be detected on a specification (8);
preparing a coating film:
d. cutting a non-woven fabric (3) with adhesive on the back surface by using a cutting machine to obtain a non-woven fabric with the length of 65 multiplied by 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and fixing a protective film with the length of 55 multiplied by 25mm as a separation film (4) on the adhesive paper in the middle to prepare a coating film (1);
preparing an array type chemical colorimetric vertical display analysis card:
e. and d, adhering the coating film (1) obtained in the step d to a dimethyl siloxane color development substrate (2) to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag.
The array chemical colorimetric vertical display analysis card obtained by the method is applied to explosive detection.
According to different explosive detection reagents loaded in the reagent module (6), nonstandard explosive raw materials and mixtures thereof can be detected and identified, wherein the nonstandard explosive raw materials comprise sulfur, ammonium salt, nitrate, permanganate, urea and derivatives thereof, TATP, chlorate and perchlorate; and standard explosives and mixtures thereof including para-nitrotoluene, dinitrotoluene, trinitrotoluene, tetrol, nitrite.
Compared with the prior art, the invention has the following beneficial effects:
(1) the array formed by 9 concave cuboid structures in which the reagent modules are placed overcomes the defects of reagent dripping in sequence and poor detection timeliness, can realize one-time sampling, and completes the instant reaction with all detection reagents.
(2) The instruction book arranged in the analysis card mainly contains information such as color change information, operation instructions and the like, can really realize integration of sampling, color development, identification and operation instructions, and greatly improves the detection and analysis efficiency.
(3) The analytical card is mainly made of PDMS, the flexibility of the analytical card can reach 90 degrees, the hydrophobic and stable physical and chemical properties of the analytical card are not easily influenced by the change of the temperature and the humidity of the environment, and great convenience is brought to sampling of falling places and the like.
(4) The detection limit reaches microgram level, the detection time does not exceed 10 seconds, and the detection and identification process is rapidly finished.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a template for forming a Polydimethylsiloxane (PDMS) chromogenic substrate according to the present invention.
Detailed Description
This is further explained below with reference to the drawings.
Example 1
The analysis card is made of a covering film 1 and a polydimethylsiloxane chromogenic substrate 2, wherein the covering film 1 is composed of a non-woven fabric 3 with adhesive back and an isolation film 4, and the isolation film 4 is made of polyethylene terephthalate; the polydimethylsiloxane chromogenic substrate 2 is internally provided with an array formed by 9 concave cuboids 5, a reagent module 6 is placed in the cuboid 5, the reagent module 6 corresponds to the color change information of the explosive detection reagent on a specification 8 one by one, and the specific operation is carried out according to the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 5 hours at the temperature of 60 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 4:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the test paper is used, the aluminum plastic bag is opened to take out the analysis card, the 1 layer of the covering film is torn, the analysis card loaded with the detection reagent is used for wiping a small amount of urea to-be-detected objects, the urea to-be-detected objects are uniformly distributed in 9 areas of the reagent module 6 of the analysis card, after the urea to-be-detected objects are fully contacted with the reagent module 6 for 10s, the urea to-be-detected objects are checked and compared with color development information on the specification 8, the color of the urea to-be-detected objects is changed into rose-red from colorless, and the color of the urea to-be-detected objects.
Example 2
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 4 hours at the temperature of 65 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 5:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting the non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off the release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and fixing a protective film with the length of 55 multiplied by the width of 25mm as an isolation film (4) on the adhesive paper in the middle to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
during the use, open the plastic-aluminum bag and take out this analysis card, tear 1 layer of tectorial membrane, wipe a small amount of nitrite determinand with the analysis card that loads detect reagent, guarantee that nitrite determinand evenly distributed is in 9 regions of the reagent module 6 of analysis card, wait nitrite determinand and reagent module 6 abundant contact 10s after, examine proofreading and compare with the color development information on description 8, the colour is changed into mauve by the colourless, it is unanimous with changing colour on the description 8 to definitely contain explosive raw materials nitrite.
Example 3
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3 hours at the temperature of 70 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 6:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the nitrate detection device is used, the aluminum plastic bag is opened, the analysis card is taken out, the coating film 1 layer is torn, the analysis card loaded with the detection reagent is used for wiping a small amount of nitrate to-be-detected objects, the nitrate to-be-detected objects are uniformly distributed in 9 areas of the reagent module 6 of the analysis card, after the nitrate to-be-detected objects are fully contacted with the reagent module 6 for 10s, the nitrate to-be-detected objects are checked and compared with the color development information on the specification 8, the color is changed from colorless to blue, the color is consistent with that on the specification 8, and therefore nitrate serving as the explosive material is definitely.
Example 4
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 4 hours at the temperature of 60 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 4:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the analysis card is used, the aluminum plastic bag is opened to take out the analysis card, the coating film 1 layer is torn, a small amount of ammonium salt to-be-detected objects are wiped by the analysis card loaded with detection reagents, the ammonium salt to-be-detected objects are uniformly distributed in 9 areas of a reagent module 6 of the analysis card, after the ammonium salt to-be-detected objects are fully contacted with the reagent module 6 for 10s, the ammonium salt to-be-detected objects are compared with color development information on a specification 8 in a checking mode, the color is changed from colorless to bright yellow, the color is consistent with that of the specification 8, and accordingly ammonium salts as explosive materials are definitely.
Example 5
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 5 hours at the temperature of 65 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 5:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
during the use, open the plastic-aluminum bag and take out this analysis card, tear 1 layer of tectorial membrane, wipe a small amount of potassium permanganate determinand with the analysis card that loads detect reagent, guarantee that potassium permanganate determinand evenly distributed is in 9 regions of the reagent module 6 of analysis card, after potassium permanganate determinand and reagent module 6 fully contact 10s, examine proofreading and compare with the color development information on description 8, the colour is changed into green by the colourless, discolours unanimously on with description 8 to definitely contain explosive raw materials potassium permanganate.
Example 6
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3 hours at the temperature of 70 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 4:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
during the use, open the plastic-aluminum bag and take out this analysis card, tear 1 layer of tectorial membrane, wipe a small amount of TNT (trinitrotoluene) determinand with the analysis card that loads detect reagent, guarantee that TNT (trinitrotoluene) determinand evenly distributed is in 9 regions of the reagent module 6 of analysis card, wait TNT (trinitrotoluene) determinand and 6 abundant contact 10s back with reagent module, compare with the color development information on the description 8 of checking and correcting, the colour is changed into mauve by colourless, it is unanimous with changing color on the description 8, thereby definitely contain explosive raw materials TNT (trinitrotoluene).
Example 7
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3 hours at the temperature of 65 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 6:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the analysis card is used, the aluminum plastic bag is opened, the analysis card is taken out, the coating film 1 layer is torn, a small amount of DNT (dinitrotoluene) to-be-detected substances are wiped by the analysis card loaded with detection reagents, the DNT (dinitrotoluene) to-be-detected substances are uniformly distributed in 9 areas of a reagent module 6 of the analysis card, and after the DNT (dinitrotoluene) to-be-detected substances are fully contacted with the reagent module 6 for 10 seconds, the DNT (dinitrotoluene) to-be-detected substances are checked and compared with color development information on a specification 8, the color is changed from colorless to dark blue, and the color is consistent with that on the specification 8, so that DNT (dinitrotoluene) containing explosive raw.
Example 8
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 4 hours at the temperature of 70 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 5:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
during the use, open the plastic-aluminum bag and take out this analysis card, tear 1 layer of tectorial membrane, wipe a small amount of PNT (paranitrotoluene) determinand with the analysis card that loads detect reagent, guarantee that PNT (paranitrotoluene) determinand evenly distributed is in 9 regions of the reagent module 6 of analysis card, wait PNT (paranitrotoluene) determinand and 6 abundant contact 10s back with reagent module, compare with the color development information on the description 8 of checking and correcting, the colour is turned into green from colourless, it is unanimous with changing colour on the description 8 to definitely contain explosive raw materials PNT (paranitrotoluene).
Example 9
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3 hours at the temperature of 65 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 6:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the analysis card is used, the aluminum plastic bag is opened, the analysis card is taken out, the coating film 1 layer is torn, a small amount of the extra-bent object to be detected is wiped by the analysis card loaded with the detection reagent, the extra-bent object to be detected is uniformly distributed in 9 areas of the reagent module 6 of the analysis card, after the extra-bent object to be detected is fully contacted with the reagent module 6 for 10s, the color is checked and compared with the color development information on the specification 8, the color is changed from colorless to orange, the color is consistent with that on the specification 8, and therefore the extra-bent object containing the explosive raw material is clear.
Example 10
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 5 hours at the temperature of 70 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 6:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
during the use, open the plastic-aluminum bag and take out this analysis card, tear 1 layer of tectorial membrane, wipe a small amount of sulphur determinand with the analysis card that loads detect reagent, guarantee that sulphur determinand evenly distributed is in 9 regions of reagent module 6 of analysis card, and after the sulphur determinand fully contacted 10s with reagent module 6, compare with the color development information on description 8 of checking and correcting, the colour changes yellow from the colourless, and is unanimous with changing color on the description 8 to definitely contain explosive raw materials sulphur.
Example 11
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3 hours at the temperature of 65 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 5:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the analysis card is used, the aluminum plastic bag is opened, the analysis card is taken out, the coating film 1 layer is torn, a small amount of TATP (tripropionone peroxide) to-be-detected substances are wiped by the analysis card loaded with detection reagents, the TATP (tripropionone peroxide) to-be-detected substances are uniformly distributed in 9 areas of a reagent module 6 of the analysis card, and after the TATP (tripropionone peroxide) to-be-detected substances are fully contacted with the reagent module 6 for 10s, the color of the TATP (tripropionone peroxide) to-be-detected substances is checked and compared with color development information on a specification 8, the color of the TATP (tripropionone peroxide) to-be-detected substances is changed from colorless to yellow and is consistent with the.
Example 12
The analysis card was made according to example 1, with the following steps:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction book 8 on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing 9 concave cuboid 5 structures to form an array; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 5 hours at the temperature of 60 ℃, and taking down the counter template to obtain a formed dimethyl siloxane developing substrate 2;
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 5:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids 5 arranged in a dimethyl siloxane developing substrate 2, and forming a reagent module protective layer 7 after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules 6, and then placing the reagent modules 6 into 9 concave cuboids 5 one by one according to the sequence of objects to be detected on a specification 8;
preparing a coating film:
d. cutting a non-woven fabric 3 with adhesive on the back surface by using a cutting machine to cut the non-woven fabric with the length of 65 multiplied by the width of 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and centering and fixing a protective film with the length of 55 multiplied by the width of 25mm on the adhesive paper as a separation film 4 to prepare a covering film 1;
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating film 1 obtained in the step d to a dimethyl siloxane color development substrate 2 to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag;
when the chlorates detection card is used, the aluminum-plastic bag is opened, the analysis card is taken out, the coating film 1 layer is torn, a small amount of chlorates to be detected are wiped by the analysis card loaded with detection reagents, the chlorates to be detected are uniformly distributed in 9 areas of the reagent module 6 of the analysis card, after the chlorates to be detected are fully contacted with the reagent module 6 for 10s, the chlorates to be detected are checked and compared with the color development information on the specification 8, the color is changed from colorless to purple, the color is consistent with that on the specification 8, and accordingly the chlorates which are raw materials of explosives are definitely contained.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (3)
1. The preparation method of the array type chemical colorimetric vertical display analysis card is characterized in that the analysis card is made of a coating film (1) and a polydimethylsiloxane chromogenic substrate (2), wherein the coating film (1) is composed of a non-woven fabric (3) with adhesive back and an isolating film (4), and the isolating film (4) is made of polyethylene glycol terephthalate; be provided with the array that 9 spill cuboid (5) structures are constituteed in polydimethylsiloxane chromogenic substrate (2), place reagent module (6) in cuboid (5), reagent module (6) and description (8) go up the discolour information one-to-one correspondence of explosive detection test agent, and concrete operation is gone on according to following step:
preparation of a polydimethylsiloxane chromogenic substrate:
a. placing polydimethylsiloxane and a peroxide vulcanizing agent in a beaker according to the volume ratio of 10:1, stirring until the polydimethylsiloxane and the peroxide vulcanizing agent are uniformly dissolved to obtain a polydimethylsiloxane solution, placing for 30 minutes, taking 5ml of the polydimethylsiloxane solution, slowly pouring the polydimethylsiloxane solution into a cuboid template made of a resin material, placing for 10 minutes, slowly placing a printed instruction (8) on the surface of the polydimethylsiloxane solution, placing for 10 minutes, taking 5ml of the polydimethylsiloxane solution, pouring the polydimethylsiloxane solution into the cuboid template, placing a counter template, and pressing to obtain an array consisting of 9 concave cuboid (5) structures; putting the cuboid template and the counter template into an oven together, taking out the cuboid template and the counter template after 3-5 hours at the temperature of 60-70 ℃, and taking down the counter template to obtain a formed polydimethylsiloxane chromogenic substrate (2);
preparing a reagent module protective layer:
b. stirring polystyrene and dichloromethane according to the volume ratio of 4:1-6:1 until the polystyrene and the dichloromethane are uniformly dissolved, pouring 9 concave cuboids (5) arranged in a polydimethylsiloxane chromogenic substrate (2), and forming a reagent module protective layer (7) after 5 minutes;
preparing a reagent module:
c. cutting a polyvinyl alcohol porous material into 9 cuboids with the length of 3 multiplied by the width of 3 multiplied by the height of 3.5mm by using an automatic cutting machine, respectively soaking 9 detection reagents in the high polymer porous material one by one, naturally airing after soaking for 5 minutes to obtain reagent modules (6), and then putting the reagent modules (6) into 9 concave cuboids (5) one by one according to the sequence of objects to be detected on a specification (8);
preparing a coating film:
d. cutting a non-woven fabric (3) with adhesive on the back surface by using a cutting machine to obtain a non-woven fabric with the length of 65 multiplied by 35mm, tearing off release paper on the back surface, coating a layer of acrylic acid water-based adhesive by using a scraper blade, and fixing a protective film with the length of 55 multiplied by 25mm as a separation film (4) on the adhesive paper in the middle to prepare a coating film (1);
preparing an array type chemical colorimetric vertical display analysis card:
e. d, adhering the coating (1) obtained in the step d to a polydimethylsiloxane chromogenic substrate (2) to prepare an analysis card, and sealing the analysis card in an aluminum plastic bag.
2. Use of an array-type chemical colorimetric identification card obtained according to the method of claim 1 for the detection of explosives.
3. Use according to claim 2, characterized in that, depending on the explosive detection reagent loaded in the reagent module (6), detection identifies non-standard explosive materials and mixtures thereof, including sulphur, ammonium salts, nitrates, permanganates, urea and its derivatives, TATP or chlorates; and standard explosives and mixtures thereof including para-nitrotoluene, dinitrotoluene, trinitrotoluene, tetrol or nitrite.
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