Fast detection reagent kit of anionic surfactants and detection method by using fast detection reagent kit

Abstract

The invention relates to a fast detection reagent kit of anionic surfactants. The fast detection reagent kit comprises a special anion reagent prefabricated tube, a demulsifying bar, washing liquid, a test tube standing frame and a liquid moving device, wherein chloroform and methylene blue color development agents in corresponding proportion are preset in the special anion reagent prefabricated tube, and the height of a chloroform layer formed by chloroform is at least 1mm higher than the height of a detecting opening of a photometer. Through the fast detection reagent kit and a detection method by using the fast detection reagent kit provided by the invention, the direct contact of operators with extracting agents can be avoided, meanwhile, the test speed is accelerated, the environment is protected, the pollution is avoided, and the fast detection reagent kit and the detection method can be widely applied to the detection of the anionic surfactants in surface water, waste water and tableware.

Description

technical field [0001] The invention relates to the technical field of chemical component detection, in particular to the detection technology of environmental protection water and waste water and tableware detergent in sanitary standards, specifically, a rapid detection kit for anionic surfactants and a detection method thereof. Background technique [0002] Anionic surfactants, also known as anionic detergents, mainly refer to sodium linear alkylbenzene sulfonate and sodium alkyl sulfonate. Detergent pollution will cause foam on the water surface that is not easy to disappear and consume dissolved oxygen in the water. At present, anionic surfactants are usually determined by methylene blue spectrophotometry (GB / T5750.4-2006, GB7494-87), and other dyes such as pararosaniline hydrochloride, basic fuchsin, and malachite green are also used as chromogenic agents. However, the existing methods for measuring low-concentration samples generally need to be extracted with organic ...

AI Technical Summary

Problems solved by technology

Detergent pollution will cause foam on the water surface that is not easy to disappear, and consume dissolved oxygen in the water

At present, anionic surfactants are usually determined by methylene blue spectrophotometry (GB / T5750.4-2006, GB7494-87), and other dyes such as pararosaniline hydrochloride, basic fuchsin, and malachite green are also used as chromogenic agents. However, the existing methods for measuring low-concentration samples generally need to be extracted with organic solvents such as chloroform, and the extractant is harmful to operators and the environment.

[0003] In addition, although the anionic surfactant method of application publication number CN102353668A has carried out some improvement to the original method, the impact of the shaking time on the result is quite large; the final test step still needs to put the chloroform layer solution into the cuvette for comparison. color, did not fundamentally solve the problem of contact between operators and toxic extractants

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