Rapid measurement reagent for manganese concentration in water and use method thereof

A technology for rapid determination and manganese concentration, which is applied in the direction of analyzing materials through chemical reactions and material analysis through observing the influence on chemical indicators, etc. cumbersome and other problems, to achieve the effect of easy transportation and carrying, simple operation and accurate results

Active Publication Date: 2010-02-03
GUANGDONG HUANKAI MICROBIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, atomic absorption requires instruments. The main disadvantages of formaldehyde oxime method and potassium periodate method are cumbersome operation steps, long analysis cycle, and short liquid reagent stability time.
Moreover, these determination methods are only suitable for laboratory tests and cannot meet the requirements of field tests.

Method used

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  • Rapid measurement reagent for manganese concentration in water and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Prepare 9g of anhydrous potassium pyrophosphate, 18g of anhydrous disodium hydrogen phosphate, 2.5g of citric acid, and 70.5g of anhydrous sodium sulfate, and add the above raw materials into a glass mortar, and grind them sufficiently so that all raw materials can pass through an 80-mesh standard sieve , and then sub-packed into 0.2g per package to become A reagent;

[0024] 2. Prepare 10g of potassium periodate and 90g of potassium chloride, add the above raw materials into a glass mortar, fully grind all the raw materials to pass through an 80-mesh standard sieve, and then pack them into 0.2g per pack to become reagent B.

[0025] 3. Add a pack of reagent A into the water sample, and after it dissolves, add a pack of reagent B. If the water contains manganese, it will display purple, and the depth of purple is proportional to the concentration of manganese in the water. After standing for 10 minutes, it will be compared with the standard Color comparison card, col...

Embodiment 2

[0027] 1. Prepare 5g of anhydrous potassium pyrophosphate, 10g of anhydrous disodium hydrogen phosphate, 0.5g of citric acid, and 65g of anhydrous sodium sulfate. Add the above-mentioned raw materials into a glass mortar and grind them sufficiently so that all raw materials can pass through an 80-mesh standard sieve. Then sub-package into 0.2g per pack to become reagent A;

[0028] 2. Prepare 5g of potassium periodate and 95g of potassium chloride, add the above raw materials into a glass mortar, fully grind all the raw materials to pass through an 80-mesh standard sieve, and then pack them into 0.2g per pack to become reagent B.

[0029] 3. Add a pack of reagent A into the water sample, and after it dissolves, add a pack of reagent B. If the water contains manganese, it will display purple, and the depth of purple is proportional to the concentration of manganese in the water. After standing for 10 minutes, it will be compared with the standard Color comparison card, color di...

Embodiment 3

[0031] 1. Prepare 15g of anhydrous potassium pyrophosphate, 30g of anhydrous disodium hydrogen phosphate, 5g of citric acid, and 80g of anhydrous sodium sulfate. Add the above-mentioned raw materials into a glass mortar, fully grind all raw materials to pass through an 80-mesh standard sieve, and then Divide into 0.2g per package and become reagent A;

[0032] 2. Prepare 25g of potassium periodate and 75g of potassium chloride, add the above raw materials into a glass mortar, fully grind all the raw materials to pass through an 80-mesh standard sieve, and then pack them into 0.2g per pack to become reagent B.

[0033] 3. Add a pack of reagent A into the water sample, and after it dissolves, add a pack of reagent B. If the water contains manganese, it will display purple, and the depth of purple is proportional to the concentration of manganese in the water. After standing for 10 minutes, it will be compared with the standard Color comparison card, color disc or colorimeter col...

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Abstract

The invention relates to a rapid measurement reagent for manganese concentration in water and a use method thereof. The rapid measurement reagent for the manganese concentration in water comprises a reagent A and a reagent B in a mass ratio of 1:1, wherein (1) the reagent A comprises the following components in percentage by weight: 5.0-15.0 anhydrous potassium pyrophosphate, 10.0-30.0 disodium hydrogen phosphate, 0.5-5.0 citric acid and 60-80 anhydrous sodium sulphate; (2) the reagent B comprises the following components in percentage by weight: 5-25 potassium periodate and 75-95 potassium chloride. The use method of the rapid measurement reagent comprises the following steps: adding the reagent A to a water sample to be measured, adding the reagent B after the reagent A is dissolved; standing for 10 minutes; and comparing colors with a standard colorimetric card, a colorimetric disc or a colorimetric meter, and reading the manganese concentration. The invention has the advantages ofsimple and convenient operation, accurate results, low price, convenient transportation and carrying, on-site measurement suitability, and the like.

Description

【Technical field】 [0001] The invention relates to a reagent for measuring manganese concentration in water and a method for using the reagent. 【Background technique】 [0002] Manganese compounds have various forms, mainly including divalent, trivalent, tetravalent, hexavalent and heptavalent. Manganese is one of the trace elements necessary for living things. Due to the lack of oxygen in groundwater, manganese exists in the form of soluble divalent manganese, while in surface water there are soluble complexes of trivalent manganese and suspensions of tetravalent manganese. The content of manganese in environmental water samples ranges from a few micrograms per liter to hundreds of micrograms per liter, rarely exceeding 1 mg / L. Manganese salts are not very toxic, but the water can leave unsightly scars on clothes, textiles and paper, so the manganese content in general industrial water is not allowed to exceed 0.1mg / L. The main pollution source of manganese is the wastewat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 傅妍芳邓金花蔡淑珍吴清平
Owner GUANGDONG HUANKAI MICROBIAL SCI & TECH
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