Determination of Selenomethionine in Wheat Samples: Comparison of Gas Chromatography-Microwave-induced Plasma Atomic Emission Spectrometry, Gas Chromatography-Flame Photometric Detection and Gas Chromatography–Mass Spectrometry

Lacalle-Guntiñas, M. Beatriz De; Brunori, Claudia; Scerbo, R.; Chiavarini, Salvatore; Quevauviller, Philippe; Adams, F.; Morabito, Roberto

doi:10.1039/a701695f

Cited by 36 publications

(15 citation statements)

References 22 publications

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“…Quantification should be performed with the standard addition method to correct for the response from the protein digest matrix. The highest recovery of selenomethionine (84%) was obtained by carrying out the digestion with 4 M HCl at 50 °C for 50 h under nitrogen [91].…”

Section: Gas Chromatography Of Selenoamino Acidsmentioning

confidence: 96%

“…The most sensitive method is GC-MS, but this method is not suited for metabolites that cannot be made volatile and is handicapped when authentic standards are not available [29]. Nevertheless, a number of examples of successful quasi-direct determination of selenoamino acids in biological samples [29,91] and in selenoprotein hydrolysates [88] have been demonstrated. The technique is also valuable for the identification of alkylselenium compounds [92,93].…”

Section: Identification Of Selenium Speciesmentioning

confidence: 99%

“…Selenomethionine forms volatile methylselenocyanide with CNBr [89,90]. A derivatization method was based on esterification of the carboxylic group with propan-2-ol and subsequent acylation of the amino group with heptafluorobutyric anhydride [91]. Mass spectrometric or Se-specific detection is necessary because of the possible interference from the sulfur analogues.…”

Section: Gas Chromatography Of Selenoamino Acidsmentioning

confidence: 99%

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Species-selective determination of selenium compounds in biological materials (Technical Report)

Łobiński

Edmonds

Suzuki

et al. 2000

Pure and Applied Chemistry

157

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Republication or reproduction of this report or its storage and/or dissemination by electronic means is permitted without the need for formal IUPAC permission on condition that an acknowledgmentMembership of the Commission during the preparation of this report (1997)(1998)(1999) Species-selective determination of selenium compounds in biological materials (Technical Report)Abstract: There is substantial evidence of the complexity of selenium speciation in living organisms and of the importance of the selective determination of the particular species of this element in order to understand its metabolism and biological significance in clinical chemistry, biology, toxicology, and nutrition. The state-of-the-art of analytical techniques available for this purpose is critically evaluated with particular emphasis on the element-selective detection and identification of the detected selenium compounds. Whereas there are a number of techniques available that are able to detect various selenium species in living organisms selectively, few techniques exist that are able to identify and to characterize the species detected.

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Section: Gas Chromatography Of Selenoamino Acidsmentioning

confidence: 96%

Section: Identification Of Selenium Speciesmentioning

confidence: 99%

Section: Gas Chromatography Of Selenoamino Acidsmentioning

confidence: 99%

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Species-selective determination of selenium compounds in biological materials (Technical Report)

Łobiński

Edmonds

Suzuki

et al. 2000

Pure and Applied Chemistry

157

View full text Add to dashboard Cite

show abstract

“…A maior parte dos sistemas visa o acoplamento direto da cromatografia, em linha, a técnicas de detecção diversas, como AAS, ICP-MS [10][11][12][13][14][15][16][17][18][19][20][21] , ICP-AES 10,22-29 , AFS30, MIP 10,21,[31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] etc. Ou seja, os diferentes equipamentos relativos a essas técnicas analíticas tornam-se os detectores, postados à saída da coluna de separação.…”

Section: Introductionunclassified

Acoplamento cromatografia gasosa - espectrometria de absorção atômica em estudos de especiação: uma revisão

Campos¹,

Grinberg²

2001

Quím. Nova

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“…Calle-Guntinas et al [63] compared AED, flame photometry and GC-MS detection for selective determination of selenomethionine in wheat samples.…”

Section: Gc Microwave Plasma Atomic-emission Detection (Gc-aed)mentioning

confidence: 99%

Selective detection and identification of Se containing compounds—review and recent developments

Uden

Boakye

Kahakachchi

et al. 2004

Journal of Chromatography A

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The complexity of selenium (Se) chemistry in the environment and in living organisms presents broad analytical challenges. The selective qualitative and quantitative determination of particular species of this element is vital in order to understand selenium's metabolism and significance in biology, toxicology, clinical chemistry and nutrition. This calls for state-of-the-art analytical techniques such as hyphenated methods that are reviewed with particular emphasis on interfaced separation with element-selective detection and identification of the detected selenium compounds. Atomic spectral element specific detection for monitoring chromatographic eluent enabled quantitative determination of selenium species in selenized yeast and qualitative measurement for breath samples. Gas chromatography with atomic emission detection (AED) of ethylated species and fluoroacid ion pair HPLC applied to the analysis of currently produced or archived selenized yeast and Brassica juncea have revealed the presence of a previously unrecognised Se-S amino acid, S-(methylseleno)cysteine.

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Determination of Selenomethionine in Wheat Samples: Comparison of Gas Chromatography-Microwave-induced Plasma Atomic Emission Spectrometry, Gas Chromatography-Flame Photometric Detection and Gas Chromatography–Mass Spectrometry

Abstract: Education and the Commission of the European Communities, and in particular the Standards, Measurements and Testing Programme for financial support of this work with a Marie Paper 7/01695F

Cited by 36 publications

References 22 publications

Species-selective determination of selenium compounds in biological materials (Technical Report)

Species-selective determination of selenium compounds in biological materials (Technical Report)

Acoplamento cromatografia gasosa - espectrometria de absorção atômica em estudos de especiação: uma revisão

Selective detection and identification of Se containing compounds—review and recent developments

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