Aussie-Sino Studies

2015, (4)

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Detection System for the Cadmium Ion Concentration Based on the Android Platform

Liu Zheng 1 Liang Jiajie 2 Tang Yong 2 Zheng Liming 1

摘要(Abstract):

Cadmium, the main heavy metal in the water pollution, can cause a serious damage to human body once absorbed by humankind. The existing detection methods are time-consuming and require expensive bulky equipment. Besides, the results obtained from these methods are easily affected by the surrounding environment. To solve these problems, a detection system for cadmium concentration was designed and implemented based on the Android platform. First the real-time image of the colloidal gold immunochromatographic strips was processed and analyzed using this system in a closed environment. Then a standard curve of cadmium concentration icon was made in accordance with the relationship between concentration of cadmium and the color of strips in T-line area. As a result, cadmium concentration of samples can be read in this curve. This system is easy to carry with small size and low in cost. It can detect cadmium concentration icon of the samples within 15 min and is of higher precision with 10 % of deviation and has good scalability and availability with 90-110 % of recovery and 0 - 5 % of coefficient of variation.

关键词(KeyWords): cadmium Ion, concentration, Android Integrated Optical Density (IOD), ImmunoChromatographic Strips (ICS)

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基金项目(Foundation): National and international science and technology cooperation projects(NO.2015DFR11050), Foreign science and technology cooperation projects in Guangdong Province(NO.2013B051000060), Key project of combination of Production Study and Research of Ministry of Education of Guangdong Province(NO.2011A090200085),Project of Shenzhen Committee of science and technology innovation(NO.ZYC201105180515A).

作者(Author): Liu Zheng 1 Liang Jiajie 2 Tang Yong 2 Zheng Liming 1

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