ONLINE ION-EXCHANGE SYSTEM COUPLED TO INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION SPECTROMETER WITH ULTRASONIC NEBULIZATION FOR THE SEPARATION, PRECONCENTRATION AND DETERMINATION OF ARSENIC(V) AND MONOMETHYLARSONATE

OCHSENKUHNPETROPULU, M; SCHRAMEL, P

dc.contributor.author	OCHSENKUHNPETROPULU, M	en
dc.contributor.author	SCHRAMEL, P	en
dc.date.accessioned	2014-03-01T01:44:02Z
dc.date.available	2014-03-01T01:44:02Z
dc.date.issued	1995	en
dc.identifier.issn	0003-2670	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24263
dc.subject	PRECONCENTRATION	en
dc.subject	INDUCTIVELY COUPLED PLASMA SPECTROMETRY	en
dc.subject	ION EXCHANGE	en
dc.subject	ULTRASONIC NEBULIZATION	en
dc.subject	ARSENIC	en
dc.subject	MONOMETHYLARSONATE	en
dc.subject	STANDARD REFERENCE MATERIALS	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.other	SIMULTANEOUS ICP-AES	en
dc.subject.other	ONLINE PRECONCENTRATION	en
dc.subject.other	ABSORPTION SPECTROMETRY	en
dc.subject.other	LIQUID-CHROMATOGRAPHY	en
dc.subject.other	MASS-SPECTROMETRY	en
dc.subject.other	SPECIATION	en
dc.subject.other	SAMPLES	en
dc.subject.other	WATER	en
dc.title	ONLINE ION-EXCHANGE SYSTEM COUPLED TO INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION SPECTROMETER WITH ULTRASONIC NEBULIZATION FOR THE SEPARATION, PRECONCENTRATION AND DETERMINATION OF ARSENIC(V) AND MONOMETHYLARSONATE	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	An on-line ion exchange preconcentration system has been developed for the separation and determination of the arsenic species, monomethylarsonate (MMA) and As(V) by inductively coupled plasma atomic emission spectrometry (ICP-AES). The strongly basic anion-exchange resin AG1-X8 was used for the separation of these two arsenic species, which were nearly quantitatively recovered by a sequential elution with 0.05 M sodium acetate-0.05 M acetic acid and 1 M HCl, respectively. The pH and the now rate of the sample and the eluents, as well as the flush time of the spectrometer and the enrichment factors were studied in order to achieve quantitative retention-elution conditions, to optimize the on-line coupling of the preconcentration system to the ICP instrument and to reach detection limits as low as possible. Without using a hydride generation system, the optimised coupling of these two systems together with the use of an ultrasonic nebulizer allows to reach detection limits for the As determination in the range of ng l(-1). The system provides complete automation of sample retention, elution and regeneration of the resin. The described method could be applied to the determination of MMA and As(V) in synthetic As mixtures, simulating an extract of a marine sediment and to the separation, preconcentration and determination of As(V) in BCR standard reference materials, such as sludges and soils.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	ANALYTICA CHIMICA ACTA	en
dc.identifier.isi	ISI:A1995RX72500010	en
dc.identifier.volume	313	en
dc.identifier.issue	3	en
dc.identifier.spage	243	en
dc.identifier.epage	252	en