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A kit for rapidly detecting ammonia nitrogen content in water bodies and its detection method

A technology of ammonia nitrogen content and kit, which is applied in the direction of material analysis by observing the influence on chemical indicators, and analysis by making materials undergo chemical reactions, etc., which can solve the problems of long measurement time, many water samples collected, and large reagent consumption. and other problems, to achieve the effect of easy operation, wide detection range and easy promotion

Inactive Publication Date: 2018-03-09
李双英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But distillation takes a certain amount of time, and the measurement time is relatively long, and more water samples are collected, so the amount of reagents is also more
Several other methods require expensive instruments
Moreover, these methods can only be completed under laboratory conditions, and relevant detection operators must be equipped, and on-site determination cannot be carried out.

Method used

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  • A kit for rapidly detecting ammonia nitrogen content in water bodies and its detection method
  • A kit for rapidly detecting ammonia nitrogen content in water bodies and its detection method
  • A kit for rapidly detecting ammonia nitrogen content in water bodies and its detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Low-concentration detection: use a 1mL liquid extractor to measure 1mL of the sample to be tested and put it into the long body tank of the color development cup, and add 1mL of the same sample to be tested into the long body tanks 1, 2, and 3 respectively. The fourth Add 1mL of ammonia-free water to the long body tank 4, and then add 15μL of solution A into the 4 long body tanks, mix well, and then add 20μL of solution B respectively, mix well and place for 10-15min, compare the standard colorimetric plate to low The color card corresponding to the concentration can determine the ammonia nitrogen content of the tested sample.

Embodiment 2

[0021] Medium-concentration detection: use a 1mL liquid extractor to measure 1mL of the sample to be tested and put it into the long body tank of the color development cup, and add 1mL of the same sample to be tested into the long body tanks 1, 2, and 3. Add 1 mL of ammonia-free water to each long body tank 4, and then add 150 μL of A solution into the 4 long body tanks, mix well, and then add 200 μL of B solution separately, mix and place for 10-15 minutes, and compare it to the standard colorimetric plate The color card corresponding to the medium concentration can determine the ammonia nitrogen content of the tested sample.

Embodiment 3

[0023] High-concentration detection: Use a 1mL liquid extractor to measure 0.5mL of the sample to be tested and put it into the long body tank of the color development cup. Among them, add 0.5mL of the same sample to be tested into the long body tanks 1, 2, and 3. Add 0.5 mL of ammonia-free water to the four long body tanks 4, then add 750 μL of A solution to the 4 long body tanks, mix well, and then add 1000 μL of B solution separately, mix and leave for 10-15 minutes, compare the standard color The color card corresponding to the high concentration in the plate can determine the ammonia nitrogen content of the tested sample.

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Abstract

The invention discloses a kit for quickly detecting ammonia nitrogen content in water bodies and a detection method thereof, which comprises a color developing cup, a liquid extractor, a standard color comparison plate, detection reagents A liquid and B liquid, and ammonia-free water. The color developing cup is 1 A transparent cuboid, in the cuboid is provided with 4 long body tanks connected in a row with a square cross section, the four long body tanks are all cuboids with the same volume, color developing cup, liquid taker and standard colorimetric Plate, detection reagent A liquid and B liquid, ammonia-free water, the color development cup is a transparent cuboid, in which there are 4 elongated grooves with a square cross-section connected in a row, and four elongated grooves They are all cuboids with the same volume, and the present invention has a complete set of test reagents and containers for detecting the concentration of ammonia nitrogen in surface water, ground water, domestic sewage and industrial waste water.

Description

Technical field [0001] The invention relates to a kit for quickly detecting the ammonia nitrogen content of water and a detection method thereof, and belongs to the chemical industry field. Background technique [0002] Ammonia nitrogen detection occupies a very important position in the recycling of domestic water or wastewater and the identification of harmful substances. At present, the commonly used methods for determining ammonia nitrogen in water include colorimetry (including Nessler’s reagent spectrophotometry, phenol-hypochlorite colorimetry, salicylic acid-hypochlorite colorimetry) and distillation-titration, ion Chromatography, flow injection method, ammonia gas sensor method, etc. Among them, the Nessler's reagent spectrophotometry is the most concerned. It is currently used as a classic method and a standard method formulated by the country. It is also one of the analytical methods stipulated in my country's "Surface Water Environmental Quality Standard" and is the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
Inventor 姬云涛屈长青郭上富
Owner 李双英