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Reagent for rapidly measuring total phosphorus in sewage, preparation method of reagent and application

A rapid determination of phosphorus reagent technology, applied in the preparation of test samples, color/spectral characteristics measurement, etc., can solve the problems of low test efficiency, cumbersome test methods, and low accuracy of test results, so as to achieve accurate and reliable measurement data , the effect of low standard deviation

Inactive Publication Date: 2019-03-01
BEIJING DRAINAGE GRP CO LTD
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Problems solved by technology

However, the accuracy of the test results of the rapid assay reagents in the prior art is not high, and there are defects such as cumbersome test methods and low test efficiency.

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  • Reagent for rapidly measuring total phosphorus in sewage, preparation method of reagent and application
  • Reagent for rapidly measuring total phosphorus in sewage, preparation method of reagent and application
  • Reagent for rapidly measuring total phosphorus in sewage, preparation method of reagent and application

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Embodiment Construction

[0041] The reagent for rapid determination of total phosphorus in sewage of the present invention, its preparation method and application will be described in detail below.

[0042] A rapid determination of total phosphorus reagent in sewage, the reagent is determined using a portable digester and a portable spectrophotometer; the reagent includes sulfuric acid, potassium persulfate solution, molybdate solution, ascorbic acid solution; the sulfuric acid, potassium persulfate solution, The concentration values ​​of molybdate solution and ascorbic acid solution are as follows respectively:

[0043] Sulfuric acid 1.88mol / L;

[0044] Potassium persulfate solution 50g / L;

[0045] Molybdate solution 26g / L;

[0046] Ascorbic acid solution 100g / L.

[0047] The preparation method of the above-mentioned quick determination total phosphorus reagent in sewage of the present invention comprises the following steps:

[0048] 1) Preparation of 1.88mol / L sulfuric acid solution: Take 10ml ...

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Abstract

The invention relates to a reagent for rapidly measuring total phosphorus in sewage, a preparation method of the reagent and an application. The reagent measures the total phosphorus in the sewage bythe aid of a portable digestion device and a portable spectrophotometer and comprises, by concentration, 1.88mol / L sulfuric acid, 50g / L potassium persulfate solution, 26g / L molybdate solution and 100g / L ascorbic acid solution. The reagent has the advantages that the reagent is convenient to operate and use, reasonable to select, high in testing accuracy, good recovery rate and the like.

Description

technical field [0001] The invention relates to the technical field of total phosphorus detection in sewage treatment, in particular to a rapid determination of total phosphorus reagent in sewage, its preparation method and application. Background technique [0002] With the development of the economy and the emphasis on the ecological environment, China's discharge standards for sewage treatment are becoming more and more stringent, especially for pollutants such as nitrogen and phosphorus. The rapid determination reagent is a reagent that can be carried to various environmental protection sites such as polluted rivers, sewage treatment plants and other temporary locations for direct determination. It has the characteristics of timeliness and convenience. It has been rapidly applied in the process, and has huge use value and market value. However, the rapid assay reagents in the prior art have defects such as low test result accuracy, cumbersome test methods, and low test ...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N1/44
CPCG01N1/44G01N21/31
Inventor 江梅陈刚新念东蒋勇王佳伟高琼潘萌李烨
Owner BEIJING DRAINAGE GRP CO LTD
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