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Ammonia nitrogen detector and detection method

A detection method and detector technology, which can be applied in the direction of color/spectral characteristic measurement, analysis through chemical reaction of materials, and material analysis through observation of the influence on chemical indicators, etc., which can solve the problem of pH indicator spectrophotometry. Application and other issues, to achieve the effect of easy storage, easy preparation, and non-toxic reagents

Active Publication Date: 2015-07-15
CHONGQING CHUANYI ANALYZER CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

Solve the problem that the pH indicator spectrophotometry is difficult to apply

Method used

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  • Ammonia nitrogen detector and detection method
  • Ammonia nitrogen detector and detection method
  • Ammonia nitrogen detector and detection method

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Embodiment Construction

[0040] Please refer to figure 1 , is a structural schematic diagram of an embodiment of the ammonia nitrogen detector provided by the present invention. The ammonia nitrogen detector can be used to measure the ammonia nitrogen concentration value of the sample, and then provide data support for analyzing the water quality of the source of the sample. Specifically, the ammonia nitrogen detector includes: a sampling device 1 , a sequential injection platform 2 , an ammonia removal pool 3 , a gas exchange pump 4 and a detection device 5 .

[0041] Wherein, the sampling device 1 is used to contain samples, and it is connected with the sequential injection platform 2 , and the sequential injection platform 2 can extract samples from the sampling device 1 .

[0042] Specifically, in a structure of the sampling device 1, it includes: an overflow cup and a peristaltic pump, the overflow cup is provided with an overflow port near the mouth of the cup, and the overflow port communicate...

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Abstract

The invention provides an ammonia nitrogen detector and a detection method. The ammonia nitrogen detector comprises a sampling device, a sequence injection platform, an ammonia gas eviction pool, a gas exchange pump and a detection device, wherein the sampling device is used for extracting samples from a sample source region; the sequence injection platform is used for cleaning the detecting device and the ammonia gas eviction pool, used for extracting a pH indicator to be forced into the detection device, extracting the samples from the sampling device and reagents from a reagent bottles to be forced into a liquid storage ring, forcing the mixed solution in the liquid storage ring into the ammonia gas eviction pool, and discharging the solution in the detection device and the ammonia gas eviction pool after the measurement; the gas exchange pump is used for pumping the ammonia gas in the ammonia gas eviction pool into the detection device; and the detection device is used for detecting the reaction solution of the ammonia gas and the pH indicator through a pH indicator spectrophotometric method, so as to obtain the ammonia nitrogen concentration value. According to the invention, the method integrates the sequence injection analysis technology and the pH indicator spectrophotometric method, thereby solving the problem that the pH indicator spectrophotometric method is difficult to apply.

Description

technical field [0001] The invention relates to ammonia nitrogen detection technology, in particular to an ammonia nitrogen detector and a detection method for measuring the concentration value of ammonia nitrogen in a sample by combining sequential injection analysis technology and pH indicator spectrophotometry. Background technique [0002] Ammonia nitrogen in water refers to NH 3 or NH 4 +Ammonia in ionic form. Ammonia nitrogen is the most harmful form among all types of nitrogen, and it is a sign of water pollution. Its harm to the water ecological environment is manifested in many aspects. Like COD (chemical oxygen demand, chemical oxygen demand), ammonia nitrogen is also the main oxygen-consuming pollutant in water. The oxidation and decomposition of ammonia nitrogen consumes dissolved oxygen in water, making the water black and smelly. At the same time, non-ionic ammonia in ammonia nitrogen is the main factor that causes aquatic organisms to be poisoned, and it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/77G01N21/31G01N1/22
Inventor 宁伟杰郑杰黄永年
Owner CHONGQING CHUANYI ANALYZER CO LTD
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