Reagent and method for quickly testing content of ammonia and nitrogen in water sample

Abstract

The invention discloses a reagent for quickly testing the content of ammonia and nitrogen in a water sample. The reagent comprises three packages A, B and C, wherein the package A comprises the following raw materials: 400 g to 600 g sodium salicylate, 400 g to 600 g sodium potassium tartrate and 10 g to 20 g sodium nitroprusside, the reagent is added into a mortar to be fully ground and then is sub-packaged to be 100 mg per tube; the package B comprises the following raw materials: 100 g to 200 g sodium hydroxide, the volume of a volumetric flask is set to be 1000 ml, and the reagent is sub-packaged to be 10 ml per flask; the package C is a sodium hypochlorite solution of 10 ml per bottle. A method for quickly testing the content of ammonia and nitrogen in the water sample comprises the following steps: when the water sample is tested, adding 0.05-0.1 ml of the reagent B into a tube of the package A, adding 2-4 ml of the water sample to be tested and 0.05-0.1 ml of the reagent C in sequence, shaking well, standing at the room temperature of 25 DEG C for 5-10 minutes, observing the color change, and comparing with a standard color card to read out the ammonia and nitrogen concentration of the water sample to be tested.

Description

technical field [0001] The invention relates to an environmental monitoring reagent and method, in particular to a reagent and method capable of quickly measuring the content of ammonia nitrogen in water samples. Background technique [0002] The determination of ammonia nitrogen is one of the items that must be checked for environmental water quality. At present, the domestic methods for determining ammonia nitrogen are mainly Nessler's reagent spectrophotometry, salicylic acid spectrophotometry, ion chromatography, etc. The steps are cumbersome and the color development time is long. The operator has high requirements, and it can only be carried out in the laboratory, which is relatively limited. Contents of the invention [0003] The object of the present invention is to provide a fast, efficient and easy-to-operate reagent and method for quickly measuring the content of ammonia nitrogen in water samples. [0004] To achieve the above object, the technical solution ado...

AI Technical Summary

Problems solved by technology

[0002] The determination of ammonia nitrogen is one of the items that must be checked for environmental water quality. At present, the methods for determining ammonia nitrogen in China are mainly Nessler's reagent spectrophotometry, salicylic acid spectrophotometry, ion chromatography, etc. The steps are cumbersome and the color development time is long. The requirements for operators are high, and it can only be carried out in the laboratory, which is relatively limited