Development of a Portable Total Nitrogen Detection System Based on Microelectrodes
This paper presents a portable total nitrogen (TN) detection system based on microelectrode chip.The microelectrode chip,integrated with a working electrode modified with copper and a counter electrode,was fabricated by MEMS technology and was used to detect the concentration of nitrate after TN digestion.MSP430F4793 microcontroller was applied in this portable system to realize multi-function such as electrochemical modification of the working electrode,detection of the current response,storage of the detection results,calibration and communication.Water samples from lake were detected by this developed system,an electrochemical analyzer and a commercial TN monitoring system at the same time.Correlation coefficients of 92.9% and 98.15% were showed by the developed system with the electrochemical analyzer and the commercial TN monitoring system,respectively.Compared with the traditional analyzer system,this portable detection system has the advantages of miniaturization,low-cost and low-power assumption.
nitrogen detection portable electrochemical modification microelectrode
Ziyuan Song Chao Bian Jianhua Tong Yang Li Jizhou Sun Hong Zhang Shanhong Xia
State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-6
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）