All-in-one heavy metal online analyzer

A heavy metal and analyzer technology, applied in the direction of analyzing materials, material analysis by electromagnetic means, instruments, etc., can solve the problems of secondary pollution of the measured water body, high purchase cost of instruments, difficult to popularize and use, etc. Mutual contamination, improved measurement accuracy, and the effect of avoiding corrosion

Active Publication Date: 2010-12-08
广东盈峰科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the heavy metal on-line analyzers with sampling electrochemical methods at home and abroad generally use mercury electrodes (dropping mercury, static dropping mercury, suspended mercury) or mercury film electrodes as working electrodes. Due to the strong toxicity of mercury and merc

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  • All-in-one heavy metal online analyzer
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  • All-in-one heavy metal online analyzer

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0024] Such as figure 1 , figure 2 , image 3 , an all-in-one heavy metal on-line analyzer, comprising a multi-way valve 3, four reagent bottles 4 respectively connected to the ports b, c, d, e, g, a, h, f, i of the multi-way valve 3, Pure water cylinder 5, ceramic plunger pump 1, mixing cylinder 11 provided with magnetic stirrer 12, reactor 6 and waste liquid cylinder 17, a port j of said multi-way valve 3 communicates with air, said multi-way valve 3 The volume of the liquid-carrying pipe 2 between the plunger pump 1 is greater than the volume of the required maximum volume of a single reagent during analysis, and the mixing cylinder 11 and the reactor 6 are connected to the pure water cylinder 5 and 7 through the three-way valve 8, 9 and the sampling pump 7. water sample cylinder 10, and can pump liquid from pure w...

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Abstract

The invention discloses an all-in-one heavy metal online analyzer which comprises a multi-ported valve, at least one reagent bottle, a pure water cylinder, a plunger pump, a mixing cylinder, a reactor and a waste liquid cylinder, wherein the at least one reagent bottle is respectively in pipe connection with each port of the multi-ported valve, the mixing cylinder is provided with a stirrer, one port of the multi-ported valve is communicated with air, the volume of a liquid carrying tube between the multi-ported valve and the plunger pump is greater than the volume of a single reagent with the maximum volume required in the analysis process, the mixing cylinder and the reactor are in pipe connection with the pure water cylinder and a water sample cylinder through a selection valve and a sampling pump and can be used for respectively pumping liquid to the mixing cylinder or the reactor from the pure water cylinder or the water sample cylinder, the mixing cylinder is in pipe connection with a quantitative/liquid discharging pump which can pump evenly-stirred mixed liquid to the reactor, and the quantitative/liquid discharging pump and the selection valve are also in pipe connection among the waste liquid cylinder, the mixing cylinder and the reactor so as to pump waste liquid in the mixing cylinder and the reactor into the waste liquid cylinder. The invention also discloses a method for analyzing heavy metals in a water sample by utilizing the all-in-one heavy metal online analyzer. The invention has the advantages of low cost, low detection limit (the detection limit can reach a ppt (part per trillion) level), no secondary pollution, small maintenance amount and low operation cost.

Description

technical field [0001] The invention relates to a heavy metal analyzer, in particular to an all-in-one heavy metal online analyzer. Background technique [0002] In the current domestic and foreign markets, heavy metal online analyzers are mainly divided into two types according to different measurement principles. One type is a heavy metal online analyzer based on the principle of ultraviolet-visible light photometry. , Molecular absorption spectrum in the visible light region, methods for qualitative analysis, quantitative analysis and structural analysis of substances. According to the different wavelength regions of the absorbed light, it is divided into ultraviolet spectrophotometry (60-400nm) and visible spectrophotometry (400-750nm), collectively referred to as ultraviolet-visible spectrophotometry. Most of the water quality online monitoring instruments currently on the market adopt this method. The other type is an online heavy metal analyzer using electrochemical...

Claims

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Application Information

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IPC IPC(8): G01N27/60G01N27/30G01N27/38G01N1/14
Inventor 王富生李贺松刘钟
Owner 广东盈峰科技有限公司
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