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Novel electrochemical sensors for en...

Thongngamdee, Sompong.

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Novel electrochemical sensors for environmental monitoring.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Novel electrochemical sensors for environmental monitoring./
Author:	Thongngamdee, Sompong.
Description:	200 p.
Notes:	Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2526.
Contained By:	Dissertation Abstracts International67-05B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3220485
ISBN:	9780542714689

Novel electrochemical sensors for environmental monitoring.
Thongngamdee, Sompong.

Novel electrochemical sensors for environmental monitoring. - 200 p.

Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2526.

Thesis (Ph.D.)--New Mexico State University, 2006.

Environmental monitoring is one of the major applications of electroanalytical chemistry. Electrochemical sensing devices have a major impact upon the monitoring of pollutants by allowing the instrument to be taken to the sample rather than bringing the sample to the laboratory. The advancement in miniaturization technology has led to the development of sensitive and selective electrochemical devices for field based and in situ monitoring.

ISBN: 9780542714689Subjects--Topical Terms:

586156
Chemistry, Analytical.

Novel electrochemical sensors for environmental monitoring.
LDR:03386nmm 2200313 4500 001 1831481
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008 130610s2006 eng d
020 $a 9780542714689
035 $a (UnM)AAI3220485
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100 1 $a Thongngamdee, Sompong. $3 1920267
245 1 0 $a Novel electrochemical sensors for environmental monitoring.
300 $a 200 p.
500 $a Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2526.
500 $a Adviser: Joseph Wang.
502 $a Thesis (Ph.D.)--New Mexico State University, 2006.
520 $a Environmental monitoring is one of the major applications of electroanalytical chemistry. Electrochemical sensing devices have a major impact upon the monitoring of pollutants by allowing the instrument to be taken to the sample rather than bringing the sample to the laboratory. The advancement in miniaturization technology has led to the development of sensitive and selective electrochemical devices for field based and in situ monitoring.
520 $a Efforts have been focused on the use of carbon fiber based voltammetric sensor for the determination of nitroaromatic explosives. A submersible electrode assembly for the real time monitoring of the explosives in natural waters has been developed. Such a remote/submersible probe circumvents the need for solution pumping and offers greater simplification and miniaturization. The facile reduction of the nitro moiety allowed convenient and rapid square wave voltammetric measurements of parts per million levels of nitroaromatic explosives. Lower parts per billion concentrations have been detected using a background subtraction operation.
520 $a The integration of carbon fiber based sensor onto a Remote Environmental Monitoring Unit Support Unmanned Underwater Vehicle (REMUS UUV) and diver held sensing unit has been performed. The optimization of variable parameters essential for attaining high speed measurement without sacrificing the sensitivity was a major attention. A computerized baseline subtraction was developed to compensate the oxygen background contribution and hence to facilitate the detection of low levels of explosives. The optimal device offered high sensitivity, fast response, excellent stability and absence of matrix effect, and hence meets the demands for underwater sensing of explosives.
520 $a Finally the effort has been focused on the development of bismuth coated carbon electrode for the sensitive adsorptive stripping voltammetric determination of trace metals. The new protocol is based on the accumulation of the metal-ligand complex at a preplated bismuth film electrode, followed by a negatively sweeping square wave voltammetric waveform. The resulting performance is examined and compares well with mercury film electrodes. The favorable performance obtained at bismuth electrodes coupled with the negligible toxicity of bismuth makes them extremely attractive for developing the bismuth based submersible sensors for continuous in situ environmental and industrial monitoring of trace metals.
590 $a School code: 0143.
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Environmental Sciences. $3 676987
690 $a 0486
690 $a 0768
710 2 0 $a New Mexico State University. $3 783784
773 0 $t Dissertation Abstracts International $g 67-05B.
790 1 0 $a Wang, Joseph, $e advisor
790 $a 0143
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3220485