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Device and method for full-automatically measuring cyanide in water

A measuring device and cyanide technology, which are applied in the directions of measuring device, sampling device, preparation of test samples, etc., can solve problems such as troublesome and time-consuming, cumbersome steps, inconsistency, etc.

Pending Publication Date: 2021-05-14
上海昂林科学仪器股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the pretreatment steps such as distillation and reaction are relatively cumbersome, requiring manual addition of reagents, distillation, transfer, reaction, cleaning and other operations, and operators must be exposed to harmful reagents
Moreover, due to the inconsistency of manual operation, the precision of measurement is also poor, which is troublesome and time-consuming

Method used

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  • Device and method for full-automatically measuring cyanide in water

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Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, this embodiment provides a fully automatic device for measuring cyanide in water, including 1-syringe pump; 2-multi-way valve; 3-reaction container; 4-chloramine T; 5-buffering agent; 6-color development Agent; 7-spectrophotometer; 8-distillate. The automatic distillation of each water sample is completed, and the distillate is stored in the distillate 8 respectively, and then the automatic operation is carried out in the computer according to the process. The specific process is:

[0027] From the syringe pump 1 through ports 8-10 of the multi-way valve 2, take 10 ml of distilled solution from the connected distillate 8, and automatically inject them into the reaction vessel 3 connected to the ports 1-3 of the multi-way valve 2. In the process, the syringe pump 1 extracts reagents from chloramine T4, buffer 5, chromogen 6, etc. through the multi-way valve 2, respectively, and injects them into the reaction container 3 connected to the 1-3 p...

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Abstract

The invention discloses a device and a method for full-automatically measuring cyanide in water, and relates to the technical field of water quality detection. The current standard HJ 484-2009 is adopted, and the method is a method for analyzing and measuring cyanide in surface water, domestic sewage and industrial wastewater. The device can realize automatic distillation, automatic reagent addition, arbitrary setting of reaction time, automatic transfer, automatic measurement on a spectrophotometer, automatic discharge and cleaning, automatic calculation of cyanide content in water and formation of a test report, and the whole measurement process is fully automatic. In addition, according to the automatic measuring method, the harm of harmful reagents to human bodies is avoided, the labor intensity is reduced, the error of manual operation is reduced, the measurement precision is improved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of water quality detection, in particular to a measuring device and analysis method for cyanide in surface water, domestic sewage and industrial waste water. Background technique [0002] At present, cyanide in water is extremely harmful to water quality and human health. The detection of cyanide is very important, and the workload of detection has been increasing. And the detection work all needs to be manually operated, which is cumbersome. The measuring method of existing cyanide is spectrophotometry, and water sample adds EDTA or zinc nitrate etc. and carries out distillation on distillation apparatus, and distilled solution is reacted with chloramine T under certain temperature and pH value to generate cyanogen chloride, then with Isonicotinic acid reacts, hydrolyzes to form glutenedial, and then reacts with the chromogenic agent to form a blue compound. Within a certain concentration range, its chroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/31G01N21/01G01N1/14G01N1/28
CPCG01N1/14G01N1/28G01N21/01G01N21/31G01N21/78G01N2001/1463G01N2021/0112
Inventor 于翔邹来娣王晓东都述宽王韦
Owner 上海昂林科学仪器股份有限公司
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