Flow injection colorimetric cyanogens detection device and cyanogens detection method thereof

A technology of flow injection and colorimetry, applied in color/spectral characteristic measurement, instruments, measuring devices, etc., can solve the problems of high technical level, high price, complex structure, etc., and achieve shortened analysis time, low cost, The effect of accurate measurement results

Inactive Publication Date: 2005-11-23
BEIJING JITIAN INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the determination of simple cyanide and partially complexed metal cyanide is mostly carried out manually according to the national standard method. Gao, a skilled technician, can analyze a batch of samples for at least two hours. Although flow injection technology is also applied to the determination of cyanide, the pretreatment part is still designed according to the method of manual distillation
Recently, there are companies such as Dutch Skalar, German BRAN + The continuous flow analyzer of LUEBBE Company can realize the mechanization and automation of manual operation, but its structure is complex and expensive, and it needs to use a large amount of reagents and add bubble devices

Method used

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  • Flow injection colorimetric cyanogens detection device and cyanogens detection method thereof
  • Flow injection colorimetric cyanogens detection device and cyanogens detection method thereof
  • Flow injection colorimetric cyanogens detection device and cyanogens detection method thereof

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Embodiment Construction

[0015] see figure 1 The flow injection colorimetric cyanide measuring instrument for measuring cyanide content of the present invention includes a sample pretreatment device and a color detection device. The pretreatment device includes a peristaltic pump 2 , an autosampler 1 connected to the peristaltic pump 2 and an online heating module 4 connected through a tee pipe 3 . The on-line heating module 4 is connected with an on-line distillation module 5, and the on-line distillation module 5 is connected with the container of the sodium hydroxide absorption liquid 18 connected with the peristaltic pump 2 and through the six-way connection between the pipeline and the peristaltic pump 2 and the color detection device. The valve 6 is connected, and the three-way pipe 3 is connected with a pipeline for distilling reagent solution 20 .

[0016] The suction tube of the automatic sampler of the present invention can be directly inserted into the pump tube of the peristaltic pump.

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Abstract

The invention relates to an apparatus and method for measuring the content of cyanide, the said apparatus comprises front treating apparatus and color measuring apparatus, wherein front treating apparatus includes peristaltic pump, automatic sampling device and online heating module which are connected with peristaltic pump; the said online heating module connects with online distilling module and six relaxing valve of coloring and measuring apparatus, wherein online distilling module is connected with sodium hydroxide absorbing liquid container linked with peristaltic pump; the said three relaxing pipe is connected with pipe with distilling regent solution. The method includes preparing miscellaneous needed solution and color measuring in the medium of pH3-4; distilling cyanides as hydrogen cyanides by online distilling; separating other disturbance by gas permeable membrane; inputting regent solution into hydrogen cyanic acid; doing colorimetric measuring by optical fiber spectrometer at wavelength of 580nm.

Description

technical field [0001] The invention relates to simple cyanide and partially complexed metal cyanide analysis, in particular to a flow injection colorimetric rapid cyanide detector and a testing method thereof. Background technique [0002] At present, the determination of simple cyanide and partially complexed metal cyanide is mostly carried out manually according to the national standard method. Gao, a skilled technician, takes at least two hours to analyze a batch of samples. Although flow injection technology is also applied to the determination of cyanide, the pretreatment part is still designed according to the method of manual distillation. Recently, there are companies such as Dutch Skalar, German BRAN + The continuous flow analyzer of LUEBBE Company can realize the mechanization and automation of manual operation, but its structure is complex and expensive, requiring the use of a large number of reagents and devices for adding bubbles. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 赵萍魏月仙顾爱平
Owner BEIJING JITIAN INSTR CO LTD
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