Automatic analyzer of water soluble sulfide and analysis method

A fully automatic analyzer, soluble technology, applied in the direction of analysis materials, instruments, preparation of test samples, etc., can solve the problem of low efficiency, and achieve the effect of accurate and fast testing

Active Publication Date: 2011-11-23
BEIJING JITIAN INSTR CO LTD
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Problems solved by technology

[0002] For the analysis of soluble sulfides in water, the national standard method GB-T16489 uses methylene blue spectrophotometry after distillation. This method requires the sample to be distilled in

Method used

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  • Automatic analyzer of water soluble sulfide and analysis method
  • Automatic analyzer of water soluble sulfide and analysis method
  • Automatic analyzer of water soluble sulfide and analysis method

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Embodiment Construction

[0022] The automatic analyzer for soluble sulfide in water of the present invention will be further described below in conjunction with the accompanying drawings of the specification.

[0023] See figure 1 , The automatic analyzer of soluble sulfide in water of the present invention includes a sample pretreatment device and a color detection device;

[0024] The sample pretreatment device includes an automatic sampling device 1, a first peristaltic pump 11, a first line heating module 20, an online distillation module 21, a six-way valve 24, and an online degassing device 22. The first peristaltic pump 11 is provided with a first pump Tube 13, the second pump tube 14, the third pump tube 15, the first pump tube 13 is respectively connected to the absorption liquid container bottle 7 and the G port of the online distillation module 21, the injection needle 5 of the automatic sampling device, the second pump One inlet of the tube 14, the first three-way valve 19 is connected by a cap...

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Abstract

The invention discloses a full-automatic analyzer of a water soluble sulfide compound and an analysis method. The full-automatic analyzer comprises a sample pretreatment device and a chromogenic detection device, wherein the sample pretreatment device comprises an autoinjection device, a first peristaltic pump, a distillation reagent container, a first triple valve, a first line heat module, an on-line distillation module and an on-line degasser; and the chromogenic detection device comprises a second peristaltic pump, a current carrying bottle, a developer bottle, a ferric chloride solution bottle, a sampling ring, a six-way valve, a second backpressure regulator, a second triple valve, a first knotted reactor, a third triple valve, a second line heat module, a flow-through cell, a detector, a waste liquid bottle, a data connection cable, a computer processing system and a first backpressure regulator. The invention also discloses an analysis method of the water soluble sulfide compound. According to the full-automatic analyzer of the water soluble sulfide and the analysis method, samples can be continuously and automatically tested with the detection limit being 1 microgram/L, and the test is accurate and rapid.

Description

Technical field [0001] The invention relates to an automatic flow injection analyzer and an analysis method, in particular to an automatic analyzer and an analysis method for soluble sulfides in water. Background technique [0002] For the analysis of soluble sulfides in water, the national standard method GB-T16489 uses methylene blue spectrophotometry after distillation. This method requires the sample to be distilled in advance, which makes the analysis consume a lot of time on the sample pretreatment. The national standard method It takes about 1 hour to analyze a sample, which is inefficient. [0003] Flow injection analysis is widely used in chemical analysis because of its simplicity, convenience, easy automation and online pre-processing of samples (Ruzicka J, Hansen EH, Flow Injection Analysis, Wiley, New York, 1981; Fang Zhaolun, Flow Injection Analysis, Beijing: Science Press, 1999). Summary of the invention [0004] The purpose of the present invention is to provide an...

Claims

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Application Information

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IPC IPC(8): G01N35/08G01N21/31G01N1/28G01N1/44
Inventor 肖靖泽赵萍魏月仙顾爱平
Owner BEIJING JITIAN INSTR CO LTD
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