CN100541183C - A kind of card assembly for fastly inspecting lead content and preparation method - Google Patents
A kind of card assembly for fastly inspecting lead content and preparation method Download PDFInfo
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- CN100541183C CN100541183C CNB2007100616812A CN200710061681A CN100541183C CN 100541183 C CN100541183 C CN 100541183C CN B2007100616812 A CNB2007100616812 A CN B2007100616812A CN 200710061681 A CN200710061681 A CN 200710061681A CN 100541183 C CN100541183 C CN 100541183C
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Abstract
A kind of card assembly for fastly inspecting lead content and preparation method belong to the detection technique field, are used to solve the problem of convenient, fast detection lead content.Comprise test card, sampling liquid and cotton swab in its technical scheme, be provided with the filter paper of dry colour developing liquid on the described test card, described colour developing liquid is formed by the raw material configuration of following unit of weight: talcum powder 3～15, polyvidone-K30 0.05～10, rhodizonic acid 0.02～2, ethanolic solution 100, described sampling liquid are 1～10% aqueous citric acid solution.The present invention can be used to monitor family, office or other playground accurately, quickly and easily and deposit article surface or the top layer under the lead contamination situation, that test card constitutes is simple, inexpensive, portable, detection method is quick, easy to operate, in addition, it also has characteristics such as highly sensitive, good reliability, both can be used for scientific research or analyzed experimental occasions, and also be suitable for ordinary populace and use in each field.
Description
Technical field
The present invention relates to a kind of pick-up unit and preparation method, test card assembly that particularly can convenient, fast detection lead content and preparation method thereof belongs to the detection technique field.
Background technology
Lead is a kind of at the very wide element of distributed in nature, and content is about 0.0016% in the earth's crust.Lead is mainly used in the safeguard of making lead accumulator, radioactive radiation, X ray, building materials etc., and the purposes of lead alloy is also quite extensive.Plumbous compound extensively exists in human lives, production, working environment, as paint, pottery, glass, printing paper, battery, pigment, rubber, plastics, explosive or the like.Because plumbous generally use in each field causes the environment lead contamination to be on the rise, and all might be subjected to lead contamination as water source, food, air, dust and household office appliance, and health is had very big harm.The main path that lead and compound thereof are invaded human body is a respiratory tract, secondly is alimentary canal.Lead content increases with age growth in the human body, and the half life period plumbous in the body was 20 years, and excessive lead is taken in can damage nervous system, hemopoietic system, urinary system, digestive system and reproductive organs, causes a series of clinical symptoms.Lead in the contaminated human female can enter the embryo, causes stillborn foetus, miscarriage or fetal anomaly, is the retarded child often.Long-term contact trace is plumbous, and excitement of infant's cerebral cortex and process of inhibition are got muddled, and nervous centralis functional disturbance symptom occurs, hypoevolutism, poor appetite, walking shakiness and constipation, insomnia; Primary school survives with intelligence development obstacle, failure of memory, absent minded, how moving and excitement, abnormal behavior, feeblemindedness, and school grade difference etc. serious may be lost the sense of hearing, cause permanent disbility etc.
In sum, it is very important the residing environment of the mankind being carried out the check analysis of regular ground lead contamination situation.The method that detects lead content at present mainly is atomic absorption method, vapor-phase chromatography etc., and the highly sophisticated device that these methods all need be used and cost an arm and a leg, round of visits is long is not suitable for popular regular detection needs.Thereby lead contamination fast method simple to operation monitors the lead contamination of surrounding environment satisfying broad masses of the people, in time handles the lead contamination source, and life or the work space of setting up healthy cleaning are very necessary.Chinese patent 96116201.5 disclosed " reagent and method of testing thereof that test is plumbous ", make the solvent of water as developer, under air or illumination condition, fade, chromogenic reaction does not recur, the shortcoming that has poor stability in addition, also needs supporting two kinds of test solutions, use, carry equal inconvenience, chromogenic reaction sensitivity is low.
Summary of the invention
The present invention be used to solve the defective of above-mentioned prior art and provide that a kind of detection method is efficient and convenient, the card assembly for fastly inspecting lead content of good stability and preparation method thereof, it is 10mgL that described test card can detect concentration fast
-1Pb
2+Solution.
The alleged problem of the present invention is solved by following technical scheme:
A kind of card assembly for fastly inspecting lead content, it comprises test card, sampling liquid and cotton swab, be provided with the filter paper of dry colour developing liquid on the described test card, described colour developing liquid is formed by the raw material configuration of following unit of weight: talcum powder 3～15, polyvidone-K300.05～10, rhodizonic acid 0.02～2, ethanolic solution 100, described sampling liquid are 1～10% aqueous citric acid solution.
Above-mentioned card assembly for fastly inspecting lead content, the concentration of described ethanolic solution are 90～100%.
Above-mentioned card assembly for fastly inspecting lead content, described test card is made up of two-layer cardboard and the filter paper that is fixed in the two-layer cardboard, wherein a layer paperboard and corresponding position, filter paper position are provided with and detect the hole, are printed on positive control color lump and negative control color lump on the cardboard, and described cotton swab is unleaded cotton swab.
A kind of method for preparing above-mentioned card assembly for fastly inspecting lead content, it comprises the steps:
A. take by weighing rhodizonic acid 0.02～2 by prescription and add ethanol 100 and make supersaturated solution, add talcum powder 0.3～15 again, polyvidone-K300.05～10 stir;
B. filter paper is fixed on to be provided with and detects between the cardboard of hole, make above-mentioned solution be uniform suspension under stirring, draw 0.01～0.1ml, drop in cardboard and detect on the filter paper that exposes in the hole rapid draing;
C. dispose 1～10% aqueous citric acid solution, the bottling sealing;
D. prepare unleaded cotton swab;
E. pack.
The present invention is directed to that the instrument that prior art detects lead content costs an arm and a leg, round of visits is long or stable not good enough, the awkward drawback specialized designs of testing result a kind of lead content detection components.This assembly is made based on chemical principle, form by test card, sampling liquid and unleaded cotton swab, it can be used to monitor family, office or other playground accurately, quickly and easily and deposit article surface or the top layer under the lead contamination situation.Because that assembly constitutes is simple, inexpensive, portable, detection method is quick, easy to operate, also have characteristics such as highly sensitive, good reliability, so both can be used for scientific research or analyzed experimental occasions, be suitable for ordinary populace widespread usage in each field of life again.It in time finds the lead contamination source for popularizing the lead contamination monitoring, sets up the life of healthy cleaning or the testing tool that work space is provided convenience.
Description of drawings
Fig. 1 is the structural representation of test card of the present invention;
Fig. 2 is a structure stratiform synoptic diagram of the present invention.
Number in the figure is expressed as follows: 1. test card; 2. detection hole; 3. filter paper; 4. positive control color lump; 5. negative control color lump; 6. substrate.
Embodiment
The present invention is made up of test card 1, sampling liquid and unleaded cotton swab, referring to accompanying drawing, test card 1 is made up of two-layer cardboard and the filter paper 3 that is fixed in the two-layer cardboard, wherein a layer paperboard and corresponding position, filter paper position are provided with and detect hole 3, be printed on positive control color lump 4 and negative control color lump 5 on the cardboard, have dry colour developing liquid on the filter paper.Test card also can be made by special card, and 6 pairs of whole display cards of substrate provide support.Card itself has dry demonstration liquid and is printed on the contrast color lump.The present invention uses high concentration ethanol or the absolute ethyl alcohol solvent as developer, and dry back color spot be a white, and long-term placement is very stable under air and illumination condition; In colour developing liquid, add talcum powder absorption rhodizonic acid, make its demonstration be reflected at talcum powder fine powder surface and take place, improved the sensitivity of reaction with lead; Add polyvidone-K30 as bonding agent, prevent that dried talcum powder from coming off from filter paper in storage, transportation and use, influence detects effect.
When being used to detect lead content, the present invention operates according to following steps;
(1) takes out the cotton rod of detection, dip in sampling liquid.Note not dipping in too many sampling liquid, 1/3 of cotton club head cotton balls is immersed take out at once in the liquid and can use;
(2) make and detect cotton rod and be an angle of 90 degrees, embrocate 15 seconds of measured surface with the testee surface;
(3) the detection cotton swab that will be coated with the measured surface that nuzzles up is put into the instrument connection of test card, makes the filter paper in the moistening hole of sampling liquid, and each instrument connection only for detection once;
(4) result judges: detect on the filter paper in the hole and contain developer, may be chromogenic reaction with the cotton rod of the detection that is coated with the object under test surface of nuzzling up, and the contrast color lump, the positive: filter paper is pale red, feminine gender in the instrument connection: test paper is faint yellow in the instrument connection.
Below provide several specific embodiments:
Embodiment 1. according to proportioning take by weighing rhodizonic acid 0.2g, ethanolic solution 100g makes supersaturated solution, take by weighing talcum powder 5g, polyvidone-K30.05g again and add in the above-mentioned supersaturated solution and stir; Prepare the aqueous citric acid solution of 1% concentration.
Filter paper is fixed on to be provided with between the cardboard that detects the hole, is printed on positive control color lump and negative control color lump makes test card, under stirring, make above-mentioned solution be uniform suspension, draw 0.01～0.1ml, drop on the filter paper that the detection hole of test card exposes, make its rapid draing; With aqueous citric acid solution bottling sealing; Prepare unleaded cotton swab; Test card, unleaded cotton swab and aqueous citric acid solution packing are got final product.
Claims (4)
1. card assembly for fastly inspecting lead content, it is characterized in that: it comprises test card (1), sampling liquid and cotton swab, be provided with the filter paper (3) of dry colour developing liquid on the described test card, described colour developing liquid is formulated by the raw material of following weight portion: talcum powder 3～15, polyvidone-K300.05～10, rhodizonic acid 0.02～2 and ethanolic solution 100, described sampling liquid are 1～10% aqueous citric acid solution.
2. card assembly for fastly inspecting lead content according to claim 1 is characterized in that: the concentration of described ethanolic solution is 90～100%.
3. card assembly for fastly inspecting lead content according to claim 2, it is characterized in that: described test card (1) is made up of two-layer cardboard and the filter paper (3) that is fixed in the two-layer cardboard, wherein a layer paperboard and corresponding position, filter paper position are provided with and detect hole (2), be printed on positive control color lump (4) and negative control color lump (5) on the cardboard, described cotton swab is unleaded cotton swab.
4. method for preparing claim 1,2 or 3 described card assembly for fastly inspecting lead content, it is characterized in that: it comprises the steps:
A. take by weighing 0.02～2 part of rhodizonic acid by prescription, add 100 parts of ethanolic solutions, make supersaturated solution, add 3～15 parts of talcum powder again, polyvidone-K300.05～10 part stir;
B. filter paper is fixed between the cardboard that is provided with the detection hole, makes above-mentioned solution be uniform suspension under stirring, draw 0.01～0.1ml, drop in cardboard and detect on the filter paper that exposes in the hole drying;
C. prepare 1～10% aqueous citric acid solution, the bottling sealing;
D. prepare unleaded cotton swab;
E. pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100616812A CN100541183C (en) | 2007-04-10 | 2007-04-10 | A kind of card assembly for fastly inspecting lead content and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100616812A CN100541183C (en) | 2007-04-10 | 2007-04-10 | A kind of card assembly for fastly inspecting lead content and preparation method |
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| Publication Number | Publication Date |
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| CN101029875A CN101029875A (en) | 2007-09-05 |
| CN100541183C true CN100541183C (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100616812A Active CN100541183C (en) | 2007-04-10 | 2007-04-10 | A kind of card assembly for fastly inspecting lead content and preparation method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089948A (en) * | 2014-07-08 | 2014-10-08 | 第一拖拉机股份有限公司 | Method for measuring content of lead in paint coating of mechanical product |
| CN104569291B (en) * | 2015-01-23 | 2016-08-31 | 昆明泊银科技有限公司 | A kind of lead content quick detection test paper extended the expiration date and preparation method thereof |
| CN106596541A (en) * | 2016-12-20 | 2017-04-26 | 江苏食品药品职业技术学院 | Method for detecting alkali-doped cow milk |
| CN109060792B (en) * | 2018-09-07 | 2021-02-12 | 天津市光复科技发展有限公司 | Method for determining trace lead in water by sulfydryl paper enrichment and separation colorimetric method |
-
2007
- 2007-04-10 CN CNB2007100616812A patent/CN100541183C/en active Active
Non-Patent Citations (6)
| Title |
|---|
| 化妆品中铅含量的快速测定法. 王宏.日用化学工业，第4期. 1998 |
| 化妆品中铅含量的快速测定法. 王宏.日用化学工业，第4期. 1998 * |
| 用玫瑰红酸钠法测定白酒中的铅. 鹿志西等.中国国境卫生检疫杂志，第20卷第3期. 1997 |
| 用玫瑰红酸钠法测定白酒中的铅. 鹿志西等.中国国境卫生检疫杂志，第20卷第3期. 1997 * |
| 聚维酮(K30)作为粘合剂对提高维生素C片抗氧化性探讨. 余亚杰，来海中.新疆中医药，第21卷第4期. 2003 |
| 聚维酮(K30)作为粘合剂对提高维生素C片抗氧化性探讨. 余亚杰，来海中.新疆中医药，第21卷第4期. 2003 * |
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