Automated voltammetric system for shipboard determination of metal speciation in sea water

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	Automated voltammetric system for shipboard determination of metal speciation in sea water
	Eric P. Achterberga and Constant M.G. van den Berg
发表期刊	Analytica Chimica Acta
ISSN	0003-2670
	1994
卷号	284 期号:3 页码:463-471
关键词	Voltmmetry Chromium Copper Metal Speciation Sea Water Shipboard Determination Waters
通讯作者	Constant M.G. van den Berg
英文摘要	An automated and semi-intelligent voltammetric system is described for trace metal analysis. The system consists of a voltammeter interfaced with a personal computer, a sample changer, 2 peristaltic pumps, a motor burette and a hanging mercury drop electrode. The system carries out fully automatically approximately 5 metal determinations per hour (including at least 3 repetitive scans and calibration by standard addition) at trace levels encountered in clean sea water. The computer program decides what level of standard addition to use and evaluates the data prior to switching to the next sample. Alternatively, the system can be used to carry out complexing ligand titration with copper whilst recording the labile copper concentration; in this mode up to 8 full titrations are carried out per day. Depth profiles for chromium speciation in the Mediterranean Sea and a profile for copper complexing ligand concentrations in the North Atlantic Ocean measured on board-ship with the system are presented. The chromium speciation was determined using a new method to differentiate between Cr(III) and Cr(VI) utilizing adsorption of Cr(III) on silica particles.
语种	英语
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/3063
专题	科研共享资源
推荐引用方式 GB/T 7714	Eric P. Achterberga and Constant M.G. van den Berg. Automated voltammetric system for shipboard determination of metal speciation in sea water[J]. Analytica Chimica Acta,1994,284(3):463-471.
APA	Eric P. Achterberga and Constant M.G. van den Berg.(1994).Automated voltammetric system for shipboard determination of metal speciation in sea water.Analytica Chimica Acta,284(3),463-471.
MLA	Eric P. Achterberga and Constant M.G. van den Berg."Automated voltammetric system for shipboard determination of metal speciation in sea water".Analytica Chimica Acta 284.3(1994):463-471.

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