Application of a hexapole collision and reaction cell in ICP-MS Part I: Instrumental aspects and operational optimization

Feldmann, Ingo; Jakubowski, Norbert; Stuewer, Dietmar

doi:10.1007/s002160051633

Cited by 144 publications

(131 citation statements)

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“…However, Se determination by ICP-MS is affected by polyatomic interferences in the plasma which overlap the most abundant isotopes, 78 (Zhang and Combs 1996). The use of collision/reaction cells is a way to remove polyatomic interferences, which allows 78 Se and 80 Se analysis free from interferences (Feldmann et al 1999). Nevertheless, another interferences as 79 Br 1 H + (m/z= 80) (Zhang and Combs 1996) could appear when using H 2 as reaction gas, so Se determination was carried out by monitoring 78 Se isotope in the cell mode to avoid all the interferences.…”

Section: Selenium Accumulationmentioning

confidence: 99%

Characterization of selenium-enriched wheat by agronomic biofortification

et al. 2014

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Agronomic biofortification of staple crops is an effective way to enhance their contents in essential nutrients up the food chain, with a view to correcting for their deficiencies in animal or human status. Selenium (Se) is one such case, for its uneven distribution in the continental crust and, therefore, in agricultural lands easily translates into substantial variation in nutritional intakes. Cereals are far from being the main sources of Se on a content basis, but they are likely the major contributors to intake on a dietary basis. To assess their potential to assimilate and biotransform Se, bread and durum wheat were enriched with Se through foliar and soil addition at an equivalent field rate of 100 g of Se per hectare (ha), using sodium selenate and sodium selenite as Se-supplementation matrices, in actual field conditions throughout. Biotransformation of inorganic Se was evaluated by using HPLC−ICP-MS after enzymatic hydrolysis for Se-species extraction in the resulting mature wheat grains. Selenomethionine and Se VI were identified and quantified: the former was the predominant species, representing 70-100 % of the total Se in samples; the maximum amount of inorganic Se was below 5 %. These results were similar for both supplementation methods and for both wheat varieties. Judging from the present results, one can conclude that agronomic biofortification of wheat may improve the nutritional quality of wheat grains with significant amounts of selenomethionine, which is an attractive option for increasing the Se status in human diets through Se-enriched, wheat-based foodstuff.

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Section: Selenium Accumulationmentioning

confidence: 99%

Characterization of selenium-enriched wheat by agronomic biofortification

et al. 2014

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“…This was used by Eiden et al 91 and later by Turner et al 92 In both investigations, the reaction chemistry of H 2 for reduction of Ar-related molecular ions was investigated in more detail, demonstrating that this approach is efficient for the interferences of interest (see also ref. 93). …”

Section: Collision and Reaction Cell Technologymentioning

confidence: 99%

Inductively coupled plasma- and glow discharge plasma-sector field mass spectrometry : Part I. Tutorial: Fundamentals and instrumentation

Jakubowski

Prohaska

Rottmann

et al. 2011

J. Anal. At. Spectrom.

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The aim of this series of two reviews is to introduce the basic concepts of ICP and GD sector field instruments, to discuss their peculiarities and performance, to present selected analytical applications for demonstration of the 'state of the art' and, finally, to identify possible future trends and developments. Part I focuses on fundamentals, instrumentation and operation of instruments to give an overview of the capabilities of the actual commercially available instrumentation, whereas selected applications will be discussed in detail in part II.

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“…Chemical resolution of polyatomic interferences by ion-molecule reactions is an alternative to the use of HR spectrometers. In recent years, many spectral interferences have been controlled with the introduction of CC and DRC devices [37][38][39].…”

Section: State Of the Artmentioning

confidence: 99%