Automatic analyser for volatile phenolic compound in water

An automatic analyzer and compound technology, applied in the direction of analyzing materials, instruments, etc., can solve problems such as unsatisfactory, and achieve the effect of rapid testing

Inactive Publication Date: 2011-09-21
BEIJING JITIAN INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The flow injection method is used to analyze volatile phenolic compounds in water. At present, there are commercial imported instruments, but the pretreatment part is still designed according to the manual distillation method, which cannot meet the needs of actual monitoring work.

Method used

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  • Automatic analyser for volatile phenolic compound in water
  • Automatic analyser for volatile phenolic compound in water

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Embodiment Construction

[0013] The automatic analyzer for volatile phenolic compounds in water of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] see figure 1 The automatic analyzer for volatile phenolic compounds in water of the present invention includes a sample pretreatment device and a color detection device; the sample pretreatment device includes an automatic sampling device 5, a first peristaltic pump 11, and the first peristaltic pump 11 is provided with The first pump tube 13, the second pump tube 14, the third pump tube 15, the automatic sampling device 5 includes a sampling needle 3, a sample tray 44, a sampling needle cleaning tank 1 and a pipeline cleaning tank 2, and the automatic sampling device The sampling needle 3 of 5 is connected with the first three-way 20 through the first pump tube 13, the first three-way 20 is connected with the container bottle of the distillation reagent 6 through the second pump tube 14, and the...

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Abstract

The invention relates to an automatic analyser for volatile phenolic compound in water, which comprises a sample pretreatment device and a developing detection device, wherein the sample pretreatment device comprises an automatic sampling device and a first peristaltic pump; the first peristaltic pump is provided with a first pump pipe, a second pump pipe and a third pump pipe; a sampling needle of the automatic sampling device is connected to a first tee joint through the first pump pipe; the first tee joint is connected to a container bottle of distillation reagent through the second pump pipe; the first tee joint is connected to a first knotted reactor; and the first knotted reactor is sequentially connected to an on-line heating module, an on-line distilling module, an on-line condensation module, the third pump pipe, a second knotted reactor, an on-line degasser and an F port of a multi-ported valve with at least six ports. The automatic analyser can be used for continuously and automatically testing the sample accurately and quickly.

Description

technical field [0001] The invention relates to a fully automatic flow injection analyzer, in particular to a fully automatic analyzer for volatile phenolic compounds in water. Background technique [0002] For the analysis of volatile phenolic compounds in water, 4-aminoantipyrine spectrophotometry after distillation is used in the national standard method GB7490-87. This method requires the sample to be distilled in advance, and the volume of the distillate is required to reach 250ml, which is The analysis consumes a large part of the time in the pretreatment of the sample; the color development part also needs to extract the mixed solution with chloroform. Chloroform is a potential carcinogen and is harmful to the health of analysts. The national standard method requires about Two hours, less efficient. [0003] Flow injection analysis is widely used in chemical analysis because of its simplicity, convenience, easy automation and on-line sample pretreatment (Ruzicka J, H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00G01N35/08G01N35/10
Inventor 赵萍魏月仙肖靖泽顾爱平
Owner BEIJING JITIAN INSTR CO LTD
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