CN110274901A - A kind of portable methanol colour developing test paper and preparation method thereof - Google Patents
A kind of portable methanol colour developing test paper and preparation method thereof Download PDFInfo
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- CN110274901A CN110274901A CN201910662092.2A CN201910662092A CN110274901A CN 110274901 A CN110274901 A CN 110274901A CN 201910662092 A CN201910662092 A CN 201910662092A CN 110274901 A CN110274901 A CN 110274901A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
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- G01N2021/7759—Dipstick; Test strip
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Abstract
The invention discloses a kind of portable methanol colour developing test paper and preparation method thereof, the portable methanol colour developing test paper is by fibre thin layer, protective agent and color developing agent composition；Wherein, fibre thin layer derives from natural polysaccharides.The natural polysaccharides are selected from guanidine glue, carboxymethyl guanidine glue, xanthan gum, sesbania gum or carboxymethyl cellulose；The protective agent is selected from odium stearate, and the color developing agent is selected from pinkish red and sodium sulfite.Magenta is dissolved in stearic acid sodium micella by the layer material dissolved out in water using natural polysaccharides, and aggregation is also generated in natural polysaccharides aqueous solution, sodium sulfite is soluble in the aqueous phase, and after freeze drying, still keeps particular state, finally drying compacting at normal temperature obtains a kind of portable methanol colour developing test paper.Determination of aqueous solution method can be broken, fuchsin sulfite is assembled and is protected in fibre thin layer, prevent its oxidation, final form is portable paper, is easy to use, principle is simply ingenious.
Description
Technical field
The invention belongs to methanol detection field, especially a kind of portable methanol colour developing test paper and preparation method thereof.
Background technique
Methanol is a kind of stronger colourless liquid of narcoticness, it is absorbed through respiratory tract and alimentary canal, can also be partially by skin
It absorbs, is distributed in myelencephalon, blood, bile and urine and content is higher.Methanol aoxidizes and drains in vivo slow, has apparent
Cumulative effect has anesthetic effect to nervous system, can lead to organism metabolism obstacle, cause retina cell, optic nerve lesion and
Optic nerve demyelinate etc..Methanol in white wine is mainly generated by the pectin in liquor-making raw material and auxiliary material, first in fermentation process
Alcohol content is all lower, harm will not be generated to human body, but when the raw material generation more containing pectin such as dry, cavings, wild plant with potato
When for cereal as main liquor-making raw material, methanol in wine content can be increased.And it is in applying some make up, solvent can dissolve
Effective skin care ingredient, but methanol content is excessively high, and skin is caused to be badly damaged.We often want in daily to detect white wine or
It whether there is methanol in cosmetics.Magenta sulphurous acid method is somebody's turn to do because instrument is simple, reagent cheaply has a wide range of applications in base
Method there is also color developing agent prepare it is cumbersome, be easy failure, sample colour developing it is unstable, cause measurement result error compared with.It is asked for these
The advantages that topic, proposes new methanol colour developing test paper, easy to operate, time saving, is widely used.
Summary of the invention
The purpose of the present invention is to provide a kind of portable methanol colour developing test paper and preparation method thereof, can break aqueous solution survey
Determine method, fuchsin sulfite is assembled and protect in fibre thin layer, prevent its oxidation, final form is portable paper, side
Just it uses, principle is simply ingenious.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of portable methanol colour developing test paper, the methanol colour developing test paper is by fibre thin layer, protective agent and color developing agent
Composition；Wherein, fibre thin layer derives from natural polysaccharides.
The natural polysaccharides are selected from guanidine glue, carboxymethyl guanidine glue, xanthan gum, sesbania gum or carboxymethyl cellulose.
The protective agent is odium stearate, and the color developing agent is pinkish red and sodium sulfite.
A kind of preparation method of portable methanol colour developing test paper, comprising the following steps:
Pinkish red be gathered in is set to obtain the pinkish red aqueous solution of sodium stearate of aggregation in odium stearate micella；
It is spare to stand swelling after the completion of configuration for preparing natural poly sugar aqueous solution；
The pinkish red aqueous solution of sodium stearate of aggregation is added into natural polysaccharides aqueous solution, obtains pinkish red accumulation type polysaccharide
Aqueous solution；
Sodium sulfite aqueous solution is added into pinkish red accumulation type poly sugar aqueous solution and obtains mixed solution；
Mixed solution is poured into mold, and is transferred to cold-trap, is freeze-dried after constant temperature processing, is completely dried, is protected
Hold the natural polysaccharides cavernous body of fuchsin sulfite aggregation；
The natural polysaccharides cavernous body drying compacting of holding fuchsin sulfite aggregation is obtained portable methanol colour developing examination
Paper.
As a further improvement of the present invention, the natural polysaccharides are guanidine glue, carboxymethyl guanidine glue, xanthan gum, sesbania
Glue or carboxymethyl cellulose, the concentration of natural polysaccharides aqueous solution are 0.5-2%.
As a further improvement of the present invention, assemble pinkish red aqueous solution of sodium stearate it is specific the preparation method comprises the following steps:
Finely ground basic fuchsin is weighed, aqueous solution of sodium stearate is dissolved in；Aqueous solution of sodium stearate and basic fuchsin mass ratio
For 100:(1-10)；It is water-soluble that the pinkish red odium stearate of aggregation is obtained in the pinkish red micella for being gathered in odium stearate formation at normal temperature
Liquid.
As a further improvement of the present invention, the aqueous solution of sodium stearate quality of natural polysaccharides aqueous solution and aggregation magenta
Than for 100:(10~30).
As a further improvement of the present invention, pinkish red accumulation type poly sugar aqueous solution and sodium sulfite aqueous solution mass ratio
100:(1~10).
As a further improvement of the present invention, condenser temperature is -50~-30 DEG C, 4~6h of constant temperature；It is adjusted in freeze drier
Pressure is saved to 5-10Pa, 20~26h of duration.
As a further improvement of the present invention, the drying press temperature is to suppress at 100~110 DEG C, pressure
For 25~35Mpa.
The present invention compared with the prior art, has the advantage that
The purpose of the present invention is to provide a kind of portable methanol colour developing test paper, can break determination of aqueous solution method, by product
Red sodium sulfite is assembled and is protected in fibre thin layer, its oxidation is prevented, and final form is portable paper, is easy to use, principle
It is simple ingenious.
Magenta is dissolved in stearic acid by the layer material that preparation method of the invention is dissolved out in water using natural polysaccharides
In sodium micella, aggregation is also generated in natural polysaccharides aqueous solution, sodium sulfite is soluble in the aqueous phase, and after freeze drying, still keeps specific shape
State, finally drying compacting at normal temperature obtain a kind of portable methanol colour developing test paper.Determination of aqueous solution method can be broken, by product
Red sodium sulfite is assembled and is protected in fibre thin layer, its oxidation is prevented, and final form is portable paper, is easy to use, principle
It is simple ingenious.
Detailed description of the invention
The section microscopic appearance (200 times) of portable methanol colour developing test paper in Fig. 1 embodiment 1；
The section microscopic appearance (2000 times) of portable methanol colour developing test paper in Fig. 2 embodiment 2.
Specific embodiment
A kind of portable methanol colour developing test paper of the present invention, the portable methanol colour developing test paper is protected by fibre thin layer
Protect agent and color developing agent composition；Wherein, fibre thin layer derives from natural polysaccharides.The natural polysaccharides are selected from guanidine glue, carboxylic first
Base guanidine glue, xanthan gum, sesbania gum or carboxymethyl cellulose；The protective agent is selected from odium stearate, and the color developing agent is selected from
Pinkish red and sodium sulfite.
Thinking of the invention is: magenta is dissolved in stearic acid by the layer material dissolved out in water using natural polysaccharides
In sodium micella, aggregation is also generated in natural polysaccharides aqueous solution, sodium sulfite is soluble in the aqueous phase, and after freeze drying, still keeps specific shape
State, finally drying compacting at normal temperature obtain a kind of portable methanol colour developing test paper.Determination of aqueous solution method can be broken, by product
Red sodium sulfite is assembled and is protected in fibre thin layer, its oxidation is prevented, and final form is portable paper, is easy to use, principle
It is simple ingenious.
Preparation method concrete operations of the invention are as follows:
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:(1-10).Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains aggregation magenta
Aqueous solution of sodium stearate.It is spare to stand swelling after the completion of configuration by preparing natural poly sugar aqueous solution, concentration 0.5-2%.In day
In right poly sugar aqueous solution, the pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that the natural polysaccharides tristearin pinkish red with aggregation
Acid sodium aqueous solution mass ratio is 100:(10~30), obtain pinkish red accumulation type poly sugar aqueous solution.10% sulfurous is then added
Acid sodium aqueous solution, it is ensured that pinkish red accumulation type poly sugar aqueous solution and sodium sulfite aqueous solution mass ratio 100:(1~10).Most
Gained liquid pours into mold eventually, and is transferred to cold-trap, cools down and is transferred in freeze drier after constant temperature processing, condenser temperature
It is -50~-30 DEG C, 4~6h of constant temperature；Pressure is adjusted in freeze drier to 5-10Pa, 20~26h of duration.Ensure completely
It is dry, the natural polysaccharides cavernous body of the fuchsin sulfite that is maintained aggregation.Pressed sponge is dried, drying press temperature is
It is suppressed at 100~110 DEG C, pressure is 25~35Mpa, obtains a kind of portable methanol colour developing test paper.
Preparation process of the invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:3.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Guanidine glue solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 1.0%.In guanidine glue solution,
The pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that guanidine glue solution and the aqueous solution of sodium stearate mass ratio of aggregation magenta are
100:10 obtains pinkish red accumulation type guanidine glue solution.10% sodium sulfite aqueous solution is then added, it is ensured that pinkish red accumulation type guanidine
Glue solution and sodium sulfite aqueous solution mass ratio 100:5.Final gained liquid is poured into mold, and is transferred to cold-trap,
It is transferred in freeze drier after being cooled to -40 DEG C and constant temperature processing, it is ensured that be completely dried, the fuchsin sulfite that is maintained is poly-
The natural polysaccharides cavernous body of collection.Pressed sponge, pressure 30Mpa obtain a kind of portable methanol colour developing test paper.Configure second
Pure and mild methanol quality ratio 100:10 mixed system, test paper color development.
Fig. 1 is the section microscopic appearance (200 times) of portable methanol colour developing test paper in embodiment 1, and the region irised out is product
Red accumulation regions, what can be apparent in figure finds out that pinkish red accumulation regions are protected in fibre thin layer, and having reached prevents from being oxidized
Purpose.
Embodiment 2
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:5.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Guanidine glue solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 2%.In guanidine glue solution, add
Enter the pinkish red aqueous solution of sodium stearate of aggregation, it is ensured that guanidine glue solution and the aqueous solution of sodium stearate mass ratio of aggregation magenta are
100:30 obtains pinkish red accumulation type guanidine glue solution.10% sodium sulfite aqueous solution is then added, it is ensured that pinkish red accumulation type guanidine
Glue solution and sodium sulfite aqueous solution mass ratio 100:5.Final gained liquid is poured into mold, and is transferred to cold-trap,
It is transferred in freeze drier after being cooled to -40 DEG C and constant temperature processing, it is ensured that be completely dried, the fuchsin sulfite that is maintained is poly-
The natural polysaccharides cavernous body of collection.Pressed sponge, pressure 30Mpa obtain a kind of portable methanol colour developing test paper.Configure second
Pure and mild methanol quality ratio 100:10 mixed system, test paper color development.
Fig. 2 is the section microscopic appearance (2000 times) of portable methanol colour developing test paper in embodiment 2, can be more under high magnification
Clearly find out that the region irised out is pinkish red accumulation regions, the concentration of guar gum increases but also pinkish red accumulation regions are more preferably protected in fibre
It ties up in thin layer, has achieved the purpose that prevent from being oxidized.
Embodiment 3
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:3.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Xanthan gum solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 1.0%.In xanthan gum solution
In, the pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that the xanthan gum solution aqueous solution of sodium stearate matter pinkish red with aggregation
Amount obtains pinkish red accumulation type xanthan gum solution than being 100:30.10% sodium sulfite aqueous solution is then added, it is ensured that pinkish red
Accumulation type xanthan gum solution and sodium sulfite aqueous solution mass ratio 100:5.Final gained liquid is poured into mold, and is turned
Cold-trap is moved to, is transferred in freeze drier after being cooled to -40 DEG C and constant temperature processing, it is ensured that be completely dried, be maintained magenta
The natural polysaccharides cavernous body of sodium sulfite aggregation.Pressed sponge, pressure 30Mpa obtain a kind of portable methanol colour developing
Test paper.Configure ethyl alcohol and methanol quality ratio 100:10 mixed system, test paper color development.
Embodiment 4
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:10.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Xanthan gum solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 0.8%.In xanthan gum solution
In, the pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that the xanthan gum solution aqueous solution of sodium stearate matter pinkish red with aggregation
Amount obtains pinkish red accumulation type xanthan gum solution than being 100:10.10% sodium sulfite aqueous solution is then added, it is ensured that pinkish red
Accumulation type xanthan gum solution and sodium sulfite aqueous solution mass ratio 100:5.Final gained liquid is poured into mold, and is turned
Cold-trap is moved to, is transferred in freeze drier after being cooled to -40 DEG C and constant temperature processing, it is ensured that be completely dried, be maintained magenta
The natural polysaccharides cavernous body of sodium sulfite aggregation.Pressed sponge, pressure 30Mpa obtain a kind of portable methanol colour developing
Test paper.Configure ethyl alcohol and methanol quality ratio 100:10 mixed system, test paper color development.
Embodiment 5
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:8.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Carboxymethyl cellulose aqueous solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 1.5%.In carboxymethyl
In cellulose aqueous solution, the pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that carboxymethyl cellulose aqueous solution and aggregation are pinkish red
Aqueous solution of sodium stearate mass ratio be 100:30, obtain pinkish red accumulation type carboxymethyl cellulose aqueous solution.Then it is added 10%
Sodium sulfite aqueous solution, it is ensured that pinkish red accumulation type carboxymethyl cellulose aqueous solution and sodium sulfite aqueous solution mass ratio 100:
1.Final gained liquid is poured into mold, and is transferred to cold-trap, is transferred to freeze-drying after being cooled to -40 DEG C and constant temperature processing
In machine, it is ensured that be completely dried, the natural polysaccharides cavernous body of the fuchsin sulfite that is maintained aggregation.Pressed sponge, pressure
For 30Mpa, a kind of portable methanol colour developing test paper is obtained.Ethyl alcohol and methanol quality ratio 100:10 mixed system are configured, test paper is aobvious
Color.
Embodiment 6
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:1.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Xanthan gum solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 0.5%.In xanthan gum solution
In, the pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that the xanthan gum solution aqueous solution of sodium stearate matter pinkish red with aggregation
Amount obtains pinkish red accumulation type xanthan gum solution than being 100:10.10% sodium sulfite aqueous solution is then added, it is ensured that pinkish red
Accumulation type xanthan gum solution and sodium sulfite aqueous solution mass ratio 100:10.Final gained liquid is poured into mold, and
It is transferred to cold-trap, is transferred in freeze drier after being cooled to -50 DEG C and constant temperature processing, it is ensured that be completely dried, be maintained product
The natural polysaccharides cavernous body of red sodium sulfite aggregation.It is aobvious to obtain a kind of portable methanol by pressed sponge, pressure 25Mpa
Color test paper.Configure ethyl alcohol and methanol quality ratio 100:10 mixed system, test paper color development.
Embodiment 7
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:8.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Xanthan gum solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 2%.In xanthan gum solution
In, the pinkish red aqueous solution of sodium stearate of aggregation is added, it is ensured that the xanthan gum solution aqueous solution of sodium stearate matter pinkish red with aggregation
Amount obtains pinkish red accumulation type xanthan gum solution than being 100:20.10% sodium sulfite aqueous solution is then added, it is ensured that pinkish red
Accumulation type xanthan gum solution and sodium sulfite aqueous solution mass ratio 100:8.Final gained liquid is poured into mold, and is turned
Cold-trap is moved to, is transferred in freeze drier after being cooled to -30 DEG C and constant temperature processing, it is ensured that be completely dried, be maintained magenta
The natural polysaccharides cavernous body of sodium sulfite aggregation.Pressed sponge, pressure 35Mpa obtain a kind of portable methanol colour developing
Test paper.Configure ethyl alcohol and methanol quality ratio 100:10 mixed system, test paper color development.
Embodiment 8
It weighs finely ground basic fuchsin, at 25 DEG C, is dissolved in 10% aqueous solution of sodium stearate.Aqueous solution of sodium stearate and alkali
Property magenta mass ratio be 100:6.Magenta, which is gathered at normal temperature in the micella of odium stearate formation, obtains the pinkish red tristearin of aggregation
Acid sodium aqueous solution.Carboxymethyl cellulose aqueous solution is prepared, it is spare to stand swelling after the completion of configuration for concentration 2%.In carboxymethyl fibre
In the plain aqueous solution of dimension, the pinkish red aqueous solution of sodium stearate of addition aggregation, it is ensured that carboxymethyl cellulose aqueous solution and aggregation magenta
Aqueous solution of sodium stearate mass ratio is 100:30, obtains pinkish red accumulation type carboxymethyl cellulose aqueous solution.Then it is added 10%
Sodium sulfite aqueous solution, it is ensured that pinkish red accumulation type carboxymethyl cellulose aqueous solution and sodium sulfite aqueous solution mass ratio 100:4.
Final gained liquid is poured into mold, and is transferred to cold-trap, is transferred to freeze drier after being cooled to -45 DEG C and constant temperature processing
In, it is ensured that it is completely dried, the natural polysaccharides cavernous body of the fuchsin sulfite that is maintained aggregation.Pressed sponge, pressure are
28Mpa obtains a kind of portable methanol colour developing test paper.Configure ethyl alcohol and methanol quality ratio 100:10 mixed system, test paper color development.
The above content is further detailed description of the invention, and it cannot be said that a specific embodiment of the invention only
It is limited to this, for those of ordinary skill in the art to which the present invention belongs, without departing from the inventive concept of the premise, also
Several simple deduction or replace can be made, the present invention is all shall be regarded as belonging to by the claims submitted and determines protection
Range.
Claims (10)
- The test paper 1. a kind of portable methanol develops the color, it is characterised in that: the methanol colour developing test paper is by fibre thin layer, protective agent And color developing agent composition；Wherein, fibre thin layer derives from natural polysaccharides.
- The test paper 2. a kind of portable methanol according to claim 1 develops the color, which is characterized in that the natural polysaccharides choosing From guanidine glue, carboxymethyl guanidine glue, xanthan gum, sesbania gum or carboxymethyl cellulose.
- The test paper 3. a kind of portable methanol according to claim 1 develops the color, which is characterized in that the protective agent is tristearin Sour sodium, the color developing agent are pinkish red and sodium sulfite.
- 4. a kind of preparation method of portable methanol colour developing test paper, which comprises the following steps:Pinkish red be gathered in is set to obtain the pinkish red aqueous solution of sodium stearate of aggregation in odium stearate micella；It is spare to stand swelling after the completion of configuration for preparing natural poly sugar aqueous solution；The pinkish red aqueous solution of sodium stearate of aggregation is added into natural polysaccharides aqueous solution, it is water-soluble to obtain pinkish red accumulation type polysaccharide Liquid；Sodium sulfite aqueous solution is added into pinkish red accumulation type poly sugar aqueous solution and obtains mixed solution；Mixed solution is poured into mold, and is transferred to cold-trap, is freeze-dried, is completely dried, be maintained product after constant temperature processing The natural polysaccharides cavernous body of red sodium sulfite aggregation；The natural polysaccharides cavernous body drying compacting of holding fuchsin sulfite aggregation is obtained portable methanol colour developing test paper.
- 5. a kind of preparation method of portable methanol colour developing test paper according to claim 4, which is characterized in that the day Right polysaccharide is guanidine glue, carboxymethyl guanidine glue, xanthan gum, sesbania gum or carboxymethyl cellulose, the concentration of natural polysaccharides aqueous solution For 0.5-2%.
- 6. a kind of preparation method of portable methanol colour developing test paper according to claim 4, which is characterized in that aggregation is pinkish red Aqueous solution of sodium stearate it is specific the preparation method comprises the following steps:Finely ground basic fuchsin is weighed, aqueous solution of sodium stearate is dissolved in；Aqueous solution of sodium stearate and basic fuchsin mass ratio are 100:(1-10)；It is water-soluble that the pinkish red odium stearate of aggregation is obtained in the pinkish red micella for being gathered in odium stearate formation at normal temperature Liquid.
- 7. a kind of preparation method of portable methanol colour developing test paper according to claim 4, which is characterized in that natural poly Sugar aqueous solution and the aqueous solution of sodium stearate mass ratio of aggregation magenta are 100:(10~30).
- 8. a kind of preparation method of portable methanol colour developing test paper according to claim 3, which is characterized in that magenta aggregation Type poly sugar aqueous solution and sodium sulfite aqueous solution mass ratio 100:(1~10).
- 9. a kind of preparation method of portable methanol colour developing test paper according to claim 3, which is characterized in that condenser temperature It is -50~-30 DEG C, 4~6h of constant temperature；Pressure is adjusted in freeze drier to 5-10Pa, 20~26h of duration.
- 10. a kind of preparation method of portable methanol colour developing test paper according to claim 3, which is characterized in that described Drying press temperature is to suppress at 100~110 DEG C, and pressure is 25~35Mpa.
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| CN110274901B (en) | 2021-11-23 |
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