Determination of trace concentrations of selenium in soils and sediments by the introduction of hydrogen selenide into an inductively coupled plasma source for emission spectrometry

Pahlavanpour, B.; Pullen, J. H.; Thompson, Marsha D.

doi:10.1039/an9800500274

Cited by 45 publications

(10 citation statements)

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“…'Total' concentrations of trace elements were determined by digesting the < 80-mesh ( < 240 pm aperture) fraction of the soil with a concentrated nitric/perchloric acid mixture and analysing by Inductively Coupled Atomic Emission Spectrometry (ICPAES) (Thompson & Walsh, 1983). The total selenium concentration was determined using ICPAES after gaseous hydride generation (Pahlavanpour et al, 1980). Vegetation samples were taken at each site on the grid, care being taken to avoid contamination with soil.…”

Section: Methodsmentioning

confidence: 99%

The mineral status of Lake Nakuru National Park, Kenya: a reconnaissance survey

Maskall

Thornton

1989

African Journal of Ecology

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SUMMARY The development of Lake Nakuru National Park as Kenya's first rhinoceros sanctuary focused attention on the capacity of the area to supply adequate trace elements to wildlife. A reconnaissance survey has been carried out to establish the mineral status of soils and selected plant species and the results related to the health of animals. Soil and plant samples collected on a 1‐km grid were analysed for twenty‐five elements using Inductively Coupled Atomic Emission Spectrometry and blood samples analysed for copper and vitamin B12. The total concentrations of copper (Cu) and cobalt (Co) in soils were low, a geochemical feature shared by many Rift Valley soils derived from volcanic ash sediments and other volcanic rocks. Total soil selenium (Se) and phosphorus (P) levels were also relatively low. Grass species contained higher levels of copper and cobalt and lower levels of selenium compared to the browse plants. Molybdenum (Mo) levels in all plants reached relatively high values and availability of this element appeared to increase in wetter soils of high pH near the lakeshore. Over 30% of impala sampled had a blood copper level below that regarded as normal for domestic animals. The relatively high molybdenum content of grasses and browse plants is believed to contribute to possible copper deficiencies in impala and waterbuck in the park. Lack of data on the mineral requirements of other wildlife species prevents assessment of the risk of deficiencies to these species at the present time. Résumé La transformation du Pare National du lac Nakuru en premier sanctuaire kényan pour les rhinocéros a attiré l'attention sur la capacité de cet endroit à fournir les oligo‐éléments nécessaires à la faune sauvage. On a mené une étude de reconnaissance pour déterminer la composition minérale du sol, récolter les espèces végétales et lier les résultats à l'état de santé des animaux. Les prélèvements de sol et de plantes effectués sur un réseau de quadrats d'un km ont été analysés au point de vue de 25 éléments par spectrumétrie inductive couplée à une émission atomique, et les échantillons sanguins furent analysés au point de vue cuivre et vitamine B12. Les concentrations totales en cuivre (Cu) et cobalt (Co) dans le sol sont faibles, phénomène géochimique répandu dans beaucoup de sols de la vallée du Rift, provenant de sédiments de cendres et d'autres roches volcaniques. Le taux en sélénium total du sol (Se) et en phosphore (P) était bas aussi. Les espèces herbeuses possédaient de plus hauts taux de cuivre et de cobalt et un taux plus bas en sélénium que ceux des plantes broutées. Le taux de molybdène (Mo) atteignait dans toutes les plantes des valeurs relativement élevées et la disponibilité de cet élément semblait augmenter dans les sols plus humides au pH élevé près des rives du lac. Plus de 30% des impalas collectés possédaient un taux sanguin en cuivre inférieur à celui considéré comme normal pour les animaux domestiques. On croit que le taux relativement élevé en molybdène des herbes et des plantes broutées contr...

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Section: Methodsmentioning

confidence: 99%

The mineral status of Lake Nakuru National Park, Kenya: a reconnaissance survey

Maskall

Thornton

1989

African Journal of Ecology

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“…Pahlavanpour et al 148 determined traces of selenium in nitric acid digested soils by the introduction of hydrogen selenide into an inductively coupled plasma source (in emission spectrometry). The soils digest containing the selenium is reduced with sodium tetrahydroborate(III) and the hydrogen selenide formed is swept into an inductively coupled plasma source for determination by emission spectrometry.…”

Section: Inductively Coupled Plasma Atomic-emission Spectrometrymentioning

confidence: 99%

Determination of Metals in Soils

Crompton

2015

Determination of Metals in Natural Waters, Sediments and Soils

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“…Selenium(V1) must be reduced to Se(1V) prior to hydride generation. In previous work (6,7,10,13,15,16,17,21) this prereduction has been accomplished with either potassium bromide or hydrochloric acid. In the present work, two methods were found to be suitable.…”

Section: Linearity and Detection Limits Calibration Linearity And Dementioning

confidence: 99%

Simultaneous determination of arsenic, antimony, and selenium in marine samples by inductively coupled plasma atomic emission spectrometry

Oliveira¹,

McLaren²,

Berman³

1983

Anal. Chem.

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A method is described for the determination of arsenic, antimony, and selenium In marine samples by continuous hydride generation inductively coupled plasma atomic emission spectrometry. A variety of sample dissolution procedures and hydride generation reaction conditions were evaluated in an attempt to eslabllsh optimal conditions for the simultaneous determination of all three elements. Detection limits of 1 fig L-' for As and Sb and O. !; Fg L-' for Se have been achieved.Results of analyses of NRCC and NBS reference materials demonstrate the applicability of the technique to biological and geological marine samples.

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Determination of trace concentrations of selenium in soils and sediments by the introduction of hydrogen selenide into an inductively coupled plasma source for emission spectrometry

Cited by 45 publications

References 0 publications

The mineral status of Lake Nakuru National Park, Kenya: a reconnaissance survey

The mineral status of Lake Nakuru National Park, Kenya: a reconnaissance survey

Determination of Metals in Soils

Simultaneous determination of arsenic, antimony, and selenium in marine samples by inductively coupled plasma atomic emission spectrometry

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