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Apparatus and method for detecting cadmium ions in water

A cadmium ion and water detection technology, applied in the field of environmental pollutant detection, can solve problems such as damage to the health of operators, insufficient detection sensitivity, poor conductivity, etc. Effect

Active Publication Date: 2018-01-16
SHANDONG UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of poor conductivity of the working electrode of the electrochemical sensor, insufficient detection sensitivity, environmental pollution and damage to the health of operators in the existing cadmium ion detection device, this application provides a device for detecting cadmium ions in water

Method used

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  • Apparatus and method for detecting cadmium ions in water
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  • Apparatus and method for detecting cadmium ions in water

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Embodiment Construction

[0044] In order to clearly illustrate the technical characteristics of the present solution, the present application will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and arrangements of specific examples are described below. Furthermore, the application may repeat reference numbers and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily...

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Abstract

The invention provides an apparatus for detecting cadmium ions in water. The apparatus comprises a molecular wire / tin film modified sensor, an electrolysis cell, an electrochemical workstation and a computer, wherein the working electrode of the molecular wire / tin film modified sensor comprises an electrode tube and a carbon paste electrode substrate, one end of the carbon paste electrode substrate is firmly coated with a tin-film modified layer by an in-situ coating method, and the carbon paste electrode substrate comprises carbon powder and a molecular wire. The apparatus has high detectionsensitivity, good conductivity and simple structure and poses no harm to environment and human beings. The invention also provides a method for detecting cadmium ions in water. According to the method, the carbon paste electrode is used as the working electrode, a silver / silver chloride electrode is used as a reference electrode, and a platinum electrode is used as a counter electrode; one end ofeach of the three electrodes is immersed in a solution, and the other ends of the three electrodes are separately connected with the electrochemical workstation through wires; and square wave anodic stripping voltammetry is employed for measuring the concentration of cadmium ions in water. The method is accurate, simple and fast in operation and is convenient for promotion.

Description

technical field [0001] The present application relates to the technical field of environmental pollutant detection, in particular to a device and method for detecting cadmium ions in water. Background technique [0002] Cadmium is a heavy metal with strong biological toxicity, which can cause serious damage to the liver and kidneys of the human body, and can cause osteoporosis and softening. In recent years, due to the discharge of industrial "three wastes" and the development of battery manufacturing and tanning industries, cadmium pollution in water has become increasingly serious, and cadmium pollution accidents have occurred from time to time, seriously endangering people's health. Stripping voltammetry is a very effective method for detecting cadmium ions in water. When using stripping voltammetry to detect heavy metal cadmium, it is an important issue to choose a suitable electrochemical sensor. [0003] Commonly used electrochemical sensors for detecting heavy metals...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48G01N27/30
Inventor 王志强杨晓婧李彩虹
Owner SHANDONG UNIV OF TECH
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