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Preparation method for detection reagent used for measuring content of manganese in water body in reaction kettle

A technology for detecting reagents and manganese content, which is applied in the field of preparation of detection reagents for measuring manganese content in water in reactors, can solve the problems of high price, high professional skills requirements for operators, and no reports on the development of manganese content detection reagents. To achieve the effect of easy portability and low price

Inactive Publication Date: 2018-04-27
无锡南理工新能源电动车科技发展有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The instruments used in these methods are bulky, expensive, complicated to operate, require high professional skills of operators, and can only be completed in the laboratory
However, no effective manganese content detection agent has been found so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0011] A, take sodium tripolyphosphate by mass ratio: citric acid: ethylenediaminetetraacetic acid disodium salt=5g:4g:1g, grind after mixing, get the first powder;

[0012] B, take sodium tripolyphosphate by mass ratio: potassium phenanthroline: phenanthroline: dimethylacetoxime=5g:3g:3g:1g, pulverize after mixing, get the second powder;

[0013] C, take the first powder by mass ratio: the second powder: methoxypolyethylene glycol=5g:3g:1g, mix uniformly to obtain the detection agent of manganese content in the water body; above-mentioned sodium tripolyphosphate, citric acid , EDTA disodium salt, potassium phenanthroline, phenanthroline, dimethylacetoxime, and methoxypolyethylene glycol are pure chemicals used in experiments.

[0014] In 20ml of certain mining and metallurgy wastewater, add the detection reagent prepared in Example 1, shake for 2min, after the detection reagent dissolves, use a spectrophotometer to measure the absorbance at a wavelength of 530nm, and substitu...

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Abstract

The invention discloses a preparation method for a detection reagent used for measuring the content of manganese in a water body in a reaction kettle. The preparation method comprises the following steps: weighing sodium tripolyphosphate, citric acid and disodium ethylenediaminetetraacetate according to a mass ratio of 5: 4: 1, and carrying out uniform mixing and grinding successively so as to obtain a first powder; weighing sodium tripolyphosphate, potassium orthophenanthroline, orthophenanthroline and dimethylglyoxime according to a mass ratio of 5: 3: 3: 1, and carrying out uniform mixing and crushing so as to obtain a second powder; and weighing the first powder, the second powder and methoxypolyethylene glycol according to a mass ratio of 5: 3: 1, and carrying out uniform mixing so asto obtain the detection agent used for determining the content of manganese in the water body. Since only 0.5 g by mass of the detection agent is used for 20 ml of a water sample and no other reagentis needed, the detection reagent has the characteristics of low cost and convenience in carrying, and can be operated by non-professionals.

Description

technical field [0001] The invention relates to a preparation method of a detection reagent for measuring manganese content in water body in a reaction kettle. Background technique [0002] Manganese is a heavy metal. Heavy metals in water and food are hard to degrade, poor in mobility, potentially harmful, and irreversible for a long time. The existence of heavy metals in the environment will seriously affect the output and quality of drinking water and agricultural and animal husbandry products. More importantly, they It can enter the human body through the biomagnification of the food chain and threaten human health. In addition to mining, battery production, non-ferrous smelting, catalysts, leather, dyes, pesticides and other fine chemical enterprises are accompanied by a large amount of heavy metal emissions. [0003] Conventional methods for detecting manganese content in water are flame atomic absorption spectrometry, dimethylglyoxime photometry, ICP-AES, oscillogra...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N21/31
CPCG01N1/28G01N21/31
Inventor 马勇殷德军陈昊
Owner 无锡南理工新能源电动车科技发展有限公司
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