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Rapid detection agent for determination of water quality aniline concentration

A detection agent, aniline technology, applied in the field of environmental monitoring, can solve the problems of complicated and time-consuming operation, not suitable for on-site water quality detection, and no aniline has been found, and achieve the effect of simple preparation process, low price and convenient portability

Inactive Publication Date: 2015-09-23
上海绿帝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned traditional laboratory methods can accurately quantify pollutants and have high precision and sensitivity, they need to collect a large number of samples, equip professionals and expensive instruments and equipment, and the operation is complicated and time-consuming. It is not suitable for rural areas and remote areas. On-site Water Quality Testing of Sudden Environmental Pollution Accidents
At present, there is no report on the on-site rapid detection agent for aniline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1, Preparation of aniline detection reagent

[0014] Weigh 1g of sodium nitrite, 25g of citric acid, and 25g of polyvinylpyrrolidone, and mix to obtain aniline detection powder I; weigh 0.1g of N-(1-naphthyl)-ethylenediamine hydrochloride, and 0.1g of polyethylene Alcohol, 0.8g potassium hydrogensulfate, 1g sulfamic acid, 2g ammonium sulfamate, first mix N-(1-naphthyl)-ethylenediamine hydrochloride with polyvinyl alcohol, add a small amount of hot water and grind into a paste , and then grind it evenly with potassium bisulfate, dry it in a 50-degree oven for 2 hours, mix it with sulfamic acid and ammonium sulfamate evenly after crushing, and get aniline detection powder II.

Embodiment 2

[0015] Example 2, Determination of Aniline Concentration in Surface Water

[0016] Take 5ml of certain surface water into a colorimetric tube, add 0.2g of aniline detection powder I prepared in Example 1, shake the test tube until dissolved, after 5 minutes, add 0.1g of aniline detection powder II, shake the test tube again for 1 minute until dissolved, place After 20 minutes, the absorbance was measured at 545nm by using a spectrophotometer (PORS-15V portable spectrometer, Beijing Puyi Company), and the calculated concentration of aniline in the ground water was 0.041mg / L, and the recovery rate of standard addition was 98.6%, which indicated that the detection agent was accurate and reliable.

Embodiment 3

[0017] Example 3, Determination of Aniline Concentration in Industrial Wastewater

[0018] Take 5ml of an industrial waste water into a colorimetric tube, add 0.2g of aniline detection powder I prepared in Example 1, shake the test tube until dissolved, after 5 minutes, add 0.1g of aniline detection powder II, shake until dissolved after 1 minute, and place for 20 minutes. The absorbance was measured at 545nm by using a spectrophotometer (PORS-15V Portable Spectrometer, Beijing Puyi Company), and the concentration of aniline in the industrial wastewater was calculated to be 0.387mg / L, and the standard addition recovery rate was 104.6%, indicating that the detection agent is accurate and reliable.

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PUM

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Abstract

The invention relates to a preparation and use method of a rapid detection agent for determination of water quality aniline concentration, the a rapid detection agent comprises two kinds of powder, and is prepared by mainly mixing sodium nitrite, N-(1-naphthyl) ethylenediamine hydrochloride, ammonium sulfamate, amino sulfonic acid and the like, the two kinds of powder are successively added into a to-be-tested sample, and a spectrophotometer or a colorimeter is used for direct measurement of a chromophoric solution. The rapid aniline detection agent is easy to store, easy to carry, stable in performance, accurate and reliable in result, and simple in operation, can be used by non-professional personnel, and is suitable for on-site rapid detection of aniline in water surface water, industrial waste water and other water bodies.

Description

technical field [0001] The invention relates to a method for preparing and using a rapid detection agent for measuring the concentration of aniline in water quality, and belongs to the technical field of environmental monitoring. Background technique [0002] With the rapid development of industrial technology, sudden environmental pollution accidents continue to increase, threatening human health, destroying the ecological environment, and seriously restricting ecological balance and social and economic development. There are many problems to be solved to prevent sudden pollution accidents. The first task is to establish emergency monitoring methods. Once a pollution accident occurs, it can be quickly put into monitoring and provide accurate pollution data in the shortest time. To prevent the spread of pollution and take countermeasures Provide a scientific basis. Therefore, for sudden environmental pollution accidents with strong time and space characteristics and signifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N21/25G01N21/78
Inventor 郜洪文刘佳奇郜子涵
Owner 上海绿帝环保科技有限公司
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