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Anodic stripping voltammetric mechanism-based online automatic monitoring system for heavy metal ions in water

A technology for anodic stripping voltammetry and heavy metal ions, which is applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of expensive, bulky instruments, easy contamination and loss of sample detection, and achieve the goal of preventing cross-contamination Effect

Inactive Publication Date: 2013-05-01
SUZHOU WENHAO MICROFLUIDIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these instruments are expensive, bulky, consume a lot of power, and sample detection is prone to contamination and loss, so they are not suitable for on-site real-time monitoring

Method used

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  • Anodic stripping voltammetric mechanism-based online automatic monitoring system for heavy metal ions in water
  • Anodic stripping voltammetric mechanism-based online automatic monitoring system for heavy metal ions in water

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The control module controls the small water pump, draws the water sample to be tested to the water sample pool; the filtered water sample is subjected to ultraviolet degradation treatment and stored in the digestion sample pool for testing; the control module controls the sampling pipeline to make the sensor electroplating solution (0.002M chlorine gold acid) into the electroplating cell, wherein the electrode surface is modified by electrochemical gold plating; the standard sample solution (1ppm mercuric nitrate) is injected into the test cell; the modified sensor is transferred to the test cell, and the electrochemical workstation is used to measure the concentration in the standard sample solution. The mercury metal content is taken as the standard value and recorded; the waste liquid in the test tank is emptied and the pipeline and test tank are pickled and washed with water; the control module controls the pipeline to draw filtered and degraded water samples to the t...

Embodiment 2

[0037] The control module controls the small water pump to draw the water sample to be tested to the water sample pool; the filtered water sample is subjected to ultraviolet degradation treatment and stored in the digestion sample pool for testing; the control module controls the sampling pipeline to make the sensor electroplating solution (0.002M bismuth nitrate ) into the electroplating pool, in which the electrode surface is modified by electrochemical bismuth plating; the standard sample solution (1ppm copper, lead, zinc, cadmium, arsenic salt) is injected into the test pool; the modified sensor is transferred to the test pool, and the electrode is activated. The chemical workstation measures the content of each heavy metal in the standard sample solution as a standard value and records it; drains the waste liquid in the test tank and pickles, washes the pipeline and the test tank; the control module controls the pipeline to extract filtered and degraded water samples to the...

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Abstract

An anodic stripping voltammetric mechanism-based online automatic monitoring system for heavy metal ions in water takes electrochemical anodic stripping square wave method as a detecting mechanism and mainly comprises a system control molecule, a water sample filtering molecule, a water sample pretreating molecule, a sensor molecule and an analyzing molecule. The online automatic monitoring system for the heavy metal ions in water can continuously monitor multiple heavy metal ions in water on the spot in real time and perform pre-warning process according to whether the heavy metal content exceeds a standard or not. The online automatic monitoring system for the heavy metal ions in water is relatively low in cost, convenient to carry and easy to operate, can achieve remote control and data networking, and has a wide application prospect in routine water quality detection, real-time monitoring, pre-warning and prevention and emergency processing.

Description

technical field [0001] The invention relates to an online automatic monitoring system for heavy metal ions in water based on the mechanism of anodic stripping voltammetry. The heavy metal ion online automatic monitoring system is mainly composed of a system control module, a water sample filtration module, a water sample pretreatment module, a sensor module, and an analysis module. Human-on-duty operation, real-time, continuous monitoring and remote monitoring, to timely grasp the water quality of major river basins, early warning and forecast of major basin water pollution accidents, and to prevent and solve sudden water pollution accidents. Background technique [0002] With the expansion of cities and the development of large-scale industries, heavy metal pollution exists in the atmosphere, soil and water environment. Heavy metal pollution is one of the most harmful water pollution problems. Heavy metal elements often accumulate in organisms for a long time and cannot be...

Claims

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Application Information

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IPC IPC(8): G01N27/416
Inventor 王晓东
Owner SUZHOU WENHAO MICROFLUIDIC TECH CO LTD
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