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Water quality nitrate detection agent

A technology of nitrite and detection agent, which is applied in the field of analysis and detection, can solve the problems of undiscovered water quality nitrite detection agent, etc., and achieve the effect of low price and easy portability

Inactive Publication Date: 2013-08-07
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

However, no report on the water quality nitrite detection agent has been found

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1 Preparation of water quality nitrite detection reagent

[0011] Weigh 1g N-(1-naphthyl)-ethylenediamine hydrochloride, 20g sulfonamide, 60g polyvinylpyrrolidone K-30 and mix uniformly to obtain A powder; 5ml phosphoric acid is completely mixed with 100g anhydrous sodium sulfate solid, and Dry at 110°C for 2 hours to obtain B powder; take 7g of A powder and 40g of B powder and mix completely to obtain the water quality nitrite detection agent.

Embodiment 2

[0012] Example 2 Determination of Nitrite Concentration in Domestic Sewage

[0013] Take 10ml of domestic sewage in a 10ml colorimetric tube, add 0.47g of water quality nitrite detection agent, shake the colorimetric tube for 1min to dissolve it, measure the absorbance at 540nm with a spectrophotometer, and calculate the nitrite concentration as 0.137mg / L, and The detection result of the national standard method (GB 7493-87) is consistent with 0.129mg / L, indicating that the water quality nitrite detection agent is accurate and reliable.

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Abstract

The invention provides a water quality nitrite detection agent, and relates to a field detection technology for nitrite content in a water media. The water quality nitrite detection agent is prepared by mainly mixing sulfanilamide, N-(1-naphthyl)-ethylenediamine hydrochloride, phosphoric acid, sodium sulfate and the like according to a certain ratio. During use, the water quality nitrite detection agent is directly dissolved in 10 ml of a water sample, mixing is performed for 1-2 min to dissolve, and a spectrophotometer or a tintometer is adopted to measure. The water quality nitrite detection agent has the following characteristics that: carrying is convenient, the water quality nitrite detection agent is easy to store, any reagents are not required to be added during use, the result is accurate and reliable, and the water quality nitrite detection agent is applicable for field detection of the nitrite content in the water quality sample.

Description

technical field [0001] The invention relates to a method for preparing and using a water quality nitrite detection agent, belonging to the technical field of analysis and detection. 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 and technologies. Once a pollution accident occurs, it can be quickly put into monitoring, and accurate pollution data can be provided in the shortest time. Measures provide a scientific basis. Therefore, for sudden environmental pollution accidents with strong time and space characteristics and significant random changes, a timely and relatively accurate answer obtained by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/75
Inventor 郜子蕙郜子涵其他发明人请求不公开姓名
Owner 上海绿帝环保科技有限公司
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