Low concentration soluble metal thallium on-line detection apparatus and method

A solubility and low-concentration technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of measurement interference, dissolution peak width, low sensitivity, etc., and achieve fast on-line detection, low detection limit, The effect of high sensitivity

Inactive Publication Date: 2016-06-01
湖南数值空间科技有限公司
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Problems solved by technology

[0025] The advantage of the suspended mercury electrode is good reproducibility, and the disadvantages are: ①The ratio of the electrode area to the volume is small, so that the sensitivity is low and the dissolution peak is wide; ②In order to prevent the mercury from falling, the stirring speed should be slow; ③It needs to be provided by a mercury dripping electrode. mercury drop
The disadvantages of mercury film electrodes are: ① poor reproducibility; ② other metals are required as substrates, among which silver, nickel, platinum, etc. have low overvoltage, and are slightly soluble in mercury, and may form between the substrate metal and the lined metal. Intermetallic compounds, resulting in poor reproducibility of dissolution peaks
The determinatio

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  • Low concentration soluble metal thallium on-line detection apparatus and method
  • Low concentration soluble metal thallium on-line detection apparatus and method
  • Low concentration soluble metal thallium on-line detection apparatus and method

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0050] refer to image 3 , the device for online detection of low-concentration soluble metal thallium in the present invention, which includes electrolytic cup 1, stirrer 2, electrochemical workstation 3, microcomputer PC4 and electrode group, electrode group includes working electrode 5, refere...

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Abstract

The present invention discloses a low concentration soluble metal thallium on-line detection apparatus and method, wherein the apparatus comprises an electrolysis cup, a blender, an electrochemical workstation, a microcomputer PC and an electrode group, the method is based on an anodic voltammetric stripping method for establishment of the online heavy metal thallium online apparatus, the method has high sensitivity and low detection limit, does not require large amounts of organic solvents, has no secondary pollution to operating personnel and environment, and can achieve rapid online detection. The on-line detection apparatus can be widely used in water source detection, drinking water security assurance and other fields.

Description

technical field [0001] The invention relates to a detection method of metal thallium, in particular to a device and method for online detection of low-concentration soluble metal thallium. Background technique [0002] 1) Basic properties and distribution of thallium: [0003] Thallium (T1) is a highly dispersed rare heavy metal element. Metal thallium is blue to silvery white, soft and malleable, very unstable in air, insoluble in water and easily soluble in acid. Thallium has two stable isotopes (203T129.5%, 205T170.5%) and 26 artificial radioactive isotopes. Thallium is widely used in high-energy physics, superconducting materials, medicine and health, aerospace, electronics, communications, military industry and chemical catalytic materials and other fields. [0004] Thallium is widely distributed in natural water bodies, and its content is generally low, with large regional differences. The content in Arctic snow water is only 0.3~0.9pg / L; the content in river water ...

Claims

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Application Information

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IPC IPC(8): G01N27/416
Inventor 关淼淼
Owner 湖南数值空间科技有限公司
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