1978
DOI: 10.1039/an9780300705
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Simultaneous determination of trace concentrations of arsenic, antimony, bismuth, selenium and tellurium in aqueous solution by introduction of the gaseous hydrides into an inductively coupled plasma source for emission spectrometry. Part II. Interference studies

Abstract: In the simultaneous determination of arsenic, antimony, bismuth, selenium and tellurium by measurement of the atomic line emission from the elements in an inductively coupled plasma source after their introduction as the gaseous hydrides, two types of possible interferences were investigated. Mutual interferences between the analytes were found to be negligible under the operating conditions used. The presence of certain metal ions in solution resulted in low recoveries of some of the analytes, especially sele… Show more

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Cited by 138 publications
(29 citation statements)
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“…As shown in Fig. 3a, the emission signal rapidly increased when the HCl concentration was increased up to 2 mol/l, reaching maximum and constant value at concentrations above 3 and 4 mol/l, similar to previous reports 7,16 . The optimum concentration of HCl chosen was 2 mol/l because of the lowest %RSD.…”
Section: Hcl Concentrationsupporting
confidence: 71%
See 1 more Smart Citation
“…As shown in Fig. 3a, the emission signal rapidly increased when the HCl concentration was increased up to 2 mol/l, reaching maximum and constant value at concentrations above 3 and 4 mol/l, similar to previous reports 7,16 . The optimum concentration of HCl chosen was 2 mol/l because of the lowest %RSD.…”
Section: Hcl Concentrationsupporting
confidence: 71%
“…The most popular technique to determine inorganic arsenic species is hydride generation (HG). In environmental samples, this technique has been combined with inductively coupled plasma optical emission spectrometry (ICP-OES) since 1978 7 . More recently, USEPA has been developing this technique and has combined it with a continuous flow system 8 in which the acidified sample, blank or standard continuously flows and is mixed with a stream of reductant, usually sodium borohydride, to produce the gaseous hydride of arsenic or arsine gas and hydrogen gas as a by-product.…”
Section: Introductionmentioning
confidence: 99%
“…48) are available to overcome this deficiency and the method is particularly suitable for multielement analysis (ref. [49][50][51].…”
Section: Alternative Analytical Methodsmentioning
confidence: 99%
“…Para esses elementos, sua introdução na forma de hidretos torna-se uma alternativa atraente, pois o potencial de ganho na sensibilidade é proporcional à razão entre as eficiências de transporte dos dois sistemas, ou seja, 1 a 3% para a nebulização pneumática e até 100% no caso da geração de hidretos. Assim, Thompson et al 90,91 relataram o uso da geração de hidretos para a determinação de As, Bi, Se e Te por ICP-OES, tendo sido os hidretos continuamente gerados pela reação com o NaBH 4 , introduzidos diretamente no plasma e os elementos detectados simultaneamente. Deste modo, os limites de detecção melhoraram em, no mínimo, uma ordem de grandeza em relação à nebulização convencional.…”
Section: Espectrometria De Emissão óTicaunclassified
“…Portanto, para evitar a extinção do plasma, Thompson et al 90,91 empregaram níveis relativamente altos de potência (2,7 -5,0 kW). Nesta ótica, sistemas de fluxo são preferidos aos de batelada, por produzirem, os primeiros, um fluxo constante destes subprodutos, o que permite a estabilização contínua do fundo, antes e depois da introdução do analito 12 .…”
Section: Espectrometria De Emissão óTicaunclassified