Unlock instant, AI-driven research and patent intelligence for your innovation.

Automatic analyzing instrument for trace metal element in sea water, river water

A technology of trace metal elements and automatic analyzer, which is applied in the direction of analyzing materials, instruments, measuring devices, etc., can solve problems such as difficulty in adapting to on-site online analysis, poor anti-interference ability, expensive price, etc., achieve excellent chemical stability, eliminate Interference, low cost effect

Inactive Publication Date: 2005-01-05
SICHUAN UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing analytical methods include the separation and enrichment of samples and the determination of trace metals. Solvent extraction, ion exchange and co-precipitation methods are usually used for the separation and enrichment of samples, and spectrophotometry, Atomic absorption spectrophotometry, X-ray fluorescence spectrometry, ICP-emission spectrometry, anodic stripping voltammetry and neutron activation analysis, the instruments corresponding to the above separation, enrichment and determination methods are either large in size or expensive or anti-interference Poor ability, difficult to adapt to on-site online analysis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic analyzing instrument for trace metal element in sea water, river water
  • Automatic analyzing instrument for trace metal element in sea water, river water
  • Automatic analyzing instrument for trace metal element in sea water, river water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In this embodiment, the structure of the automatic analyzer for trace metal elements in seawater and estuary water is as follows: figure 1 , figure 2 , image 3 As shown, it consists of a sample on-line processing device 1 and a low-pressure ion chromatography analyzer.

[0024] The sample on-line processing device 1 includes a concentration column 12, a low-pressure pump 13, a switching valve 14, a sample container 15, a cleaning liquid container 16 and a desorption liquid container 17; the low-pressure pump 13 selects a commercially available electronic peristaltic pump (also called an electronic micro pump ), output maximum pressure 0~5×10 5 Pa, the switching valve 14 selects four-way electromagnetic valve, and the structure of the concentration column 12 is as follows: Figure 5 As shown, it is mainly composed of a column 22, a filter plate 24 installed in the inner cavity of the liquid outlet end of the column, and a column packing 23 filled in the inner cavity...

Embodiment 2

[0030] In this embodiment, the structure of the automatic analyzer for trace metal elements in seawater and estuary water is as follows: figure 1 , figure 2 , Figure 4 As shown, it consists of a sample on-line processing device 1 and a low-pressure ion chromatography analyzer.

[0031] The working pressure and structure of the low-pressure ion chromatography analyzer are the same as in Example 1.

[0032] The sample on-line processing device 1 includes a concentration column 12, a low-pressure pump 13, a switching valve 14, a sample container 15, a cleaning solution container 16, a desorption liquid container 17, a complexing agent container 18, a low-pressure pump 19 and a reactor 20; the above components The assembly method of the method: the output port of the low-pressure pump 13 is connected with the liquid inlet 21 of the concentration column 12 through a pipe fitting, and the input port of the low-pressure pump 13 is connected with the output port of the switching v...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thermal decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention is an automatic analysis method for trace element in sea water and river water; it is mainly made up of online processing device and testing device. The testing device is the low pressure ion chromatogram device, the working pressure is 2-3X10 to the power 5 Pa. the sample online processing device has two structures, one is the direct processing type, and the other is the complexation type. The direction processing type includes condensing pile, low pressure pump, converting valve, sample container, rinsing liquid container and desorbing container; the complexation type includes condensing pile, low pressure pump, converting valve, sample container, rinsing container, desorbing liquid container, complexation agent container and the reactor. The instrument can upgrade the analysis precision, and the instrument is very small.

Description

technical field [0001] The invention belongs to an analysis instrument for trace metal elements, in particular to an automatic analyzer for trace metal elements in seawater and estuary water. Background technique [0002] Due to human activities, the content of heavy metals in oceans and rivers increases year by year and accumulates, directly affecting the normal reproduction of aquatic organisms and causing harm to human health. In order to study the relationship between trace metal elements contained in seawater and estuary water, ecological environment and human activities, it is necessary to provide necessary data and information for research through the analysis of these trace metal elements. Analytical instruments for trace metal elements in seawater and estuary water are matched with certain analytical methods. Existing analytical methods include the separation and enrichment of samples and the determination of trace metals. Solvent extr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 张新申蒋小萍
Owner SICHUAN UNIV