Sulfite detection test paper and preparation method thereof

A technology for detecting test paper and sulfite, which is applied in the direction of analyzing materials through chemical reactions and observing the influence of chemical indicators on materials, etc. Long time and other problems, to achieve the effect of easy portability, simple production, simple measurement

Inactive Publication Date: 2011-10-12
INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The colorimetric method uses a large number of toxic substances, which are harmful to people and the environment; the subjective factors of the operator of the distillation direct titration method have a great influence on the experimental results, and these methods need to be carried out under good laboratory conditions. Long and expensive, difficult to popularize

Method used

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  • Sulfite detection test paper and preparation method thereof
  • Sulfite detection test paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Put the qualitative filter paper into the equal-volume mixture of 2g / L pararosaniline hydrochloride solution and 10g / L sulfamic acid amine solution, after fully soaking, dry it naturally in the shade, after drying, cut it into 0.8cm×0.6cm Two pieces are pasted on the substrate made of white plastic, the two pieces of filter paper are separated by 0.4cm, and the substrate is cut into 0.8cm×5cm to make a sulfite detection test paper.

Embodiment 2

[0022] Put the quantitative filter paper into the equal volume mixture of 2g / L pararosaniline hydrochloride solution and 10g / L sulfamic acid ammonium solution, fully soak it, dry it naturally in the shade, after drying, cut it into 0.8cm×0.6cm Two pieces are pasted on the substrate made of white plastic, the two pieces of filter paper are separated by 0.4cm, and the substrate is cut into 0.8cm×5cm to make a sulfite detection test paper.

Embodiment 3

[0024] Put the qualitative filter paper into the equal-volume mixture of 2g / L pararosaniline hydrochloride solution and 12g / L sulfamic acid amine solution, after fully soaking, dry it naturally in the shade, after drying, cut it into 0.8cm×0.6cm Two pieces are pasted on the substrate made of white plastic, the two pieces of filter paper are separated by 0.4cm, and the substrate is cut into 0.8cm×5cm to make a sulfite detection test paper.

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Abstract

The invention discloses sulfite detection test paper and a preparation method thereof. The sulfite detection test paper comprises a base plate and a color developing paper sheet, wherein the color developing paper sheet is prepared by adopting the steps of: fully dipping filter paper in an isovolumetric mixed solution of a hydrochloric acid triscarbinol solution with concentration of 2-5g / l and an ammonium sulfamate solution with concentration of 10-15g / l, and naturally drying in a shadow place. The color developing paper sheet is fixedly connected with the base plate. The sulfite detection test paper has the characteristics of simplicity in manufacture and operation, convenience for carrying, high testing speed, certain selectivity, accuracy and sensitivity and the like, is vey suitable for rapid detection of a site, and ensures that sulfide is tested simply and conveniently so that laypeople can operate the sulfide detection test paper.

Description

technical field [0001] The invention relates to a detection test paper and a preparation method thereof, in particular to a bleach detection test paper and a preparation method thereof. Background technique [0002] Sulfite is the most commonly used bleaching agent in my country, and it can be used in wine, sweetener, yuba, flour products and other fields. However, this kind of substance has certain toxicity, which is mainly manifested in that it can induce allergic diseases and asthma, and destroy vitamin B1 at the same time. At present, the analysis methods of sulfite in food include colorimetric method and distillation direct titration method. The colorimetric method uses a large number of toxic substances, which are harmful to people and the environment; the subjective factors of the operator of the distillation direct titration method have a great influence on the experimental results, and these methods need to be carried out under good laboratory conditions. Long and...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 王红勇高志贤房彦军周焕英宁保安孙思明刘楠彭媛
Owner INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL
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