The retention of selenium chains in reversed-phase liquid chromatography

Möckel, H. J.; Höfler, F.; Melzer, H.

doi:10.1007/bf02344788

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Attempts were also made to determine these compounds in naturally occurring, selenium-containing sulfur, hut no selenium sulfides were found. 'g0 Similar investigations were carried out for the diorganyl polyselenides (Et,Sen ,19'9 192 Bu 2 S e n 192 and Ph2Sen193) and for other organic polyselenides in which the selenium chains were bound to ethylthio-, butylthio-or phenylthio-groups at both ends. '93…”

Section: Miscellaneousmentioning

confidence: 93%

Identification and quantification of inorganic and organic selenium compounds with highperformance liquid chromatography

Kölbl

Kalcher

Irgolic

et al. 1993

Applied Organom Chemis

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Selenium appears in the natural selenium cycle in the form of several organic and inorganic compounds. The biologically beneficial and detrimental effects of 'selenium' must be ascribed to particular selenium compounds. The identification and quantification of selenium compounds in biological and environmental samples is required for an understanding of the role of selenium. The highperformance liquid-chromatographic (HPLC) methods for the separation, identification and quantification of selenite, selenate, hydrogen selenide, methaneselenol, bis(organothi0) selenides, trimethylselenonium salts, selenoamino-acids, selenium derivatives of carbohydrates, selenoproteins, selenonucleosides and other miscellaneous selenium compounds are summarized (193 references) and pertinent detection modes discussed. Advantages and disadvantages of the methods are pointed out. The literature is covered since 1974, the year of the first publication in this field.

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Section: Miscellaneousmentioning

confidence: 93%

Identification and quantification of inorganic and organic selenium compounds with highperformance liquid chromatography

Kölbl

Kalcher

Irgolic

et al. 1993

Applied Organom Chemis

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“…The structure of the compound is analogous to the structure of polyselenides and polysulfides known from the literature. 44,45 Both polysulfides and polyselenides have a non-branched structure where the S and Se atoms take place in the center of the molecules. 44,46 Polysulfides are the main aroma components of Brassicaceae 47 and Allium species.…”

Section: Identification Of Selenocompoundsmentioning

confidence: 99%

“…44,45 Both polysulfides and polyselenides have a non-branched structure where the S and Se atoms take place in the center of the molecules. 44,46 Polysulfides are the main aroma components of Brassicaceae 47 and Allium species. 48 There are different mechanisms for the formation of polysulfides but it is suggested that the biological formation involves the reaction of hydrogen sulfide with other precursor sulfides.…”

Section: Identification Of Selenocompoundsmentioning

confidence: 99%

The relationship of selenium tolerance and speciation in Lecythidaceae species

et al. 2013

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Comparative study of selenium (Se) speciation in hyperaccumulator plants offers an interesting challenge from the analytical point of view. In our study the application of a sophisticated sample clean-up procedure and the combination of elemental and molecular mass spectrometric methods led to the identification of several new selenocompounds. The difference between the Se speciation of the primary accumulator Lecythis minor and the secondary accumulator Bertholletia excelsa confirmed the current opinion that the speciation pattern in hyperaccumulator plants is principally related to the mechanism of accumulation and not to taxonomy. The most abundant new selenocompounds were found to be the derivatives of selenohomocysteine (SeHCy) and selenomethionine (SeMet), including fatty acid metabolism related compounds. A series of SeHCy derived species containing multiple Se atoms (>2) was also detected and their structures were validated by the synthesis of their S-Se analogues.

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“…These detailed structural information together with the accurate mass measurement data were sufficient to construct the structure of Se-selenohomocysteinyl-diseleno-homocysteine shown on Figure 5.6. Regarding the Se-Se-Se bond in the center of the molecule, the structure of the compound is analogous to the structure of polyselenides and polysulfides known from the literature (Westlake Jr. et al 1950, Möckel et al 1985.…”

Section: In-source Fragment Based Data Miningmentioning

confidence: 89%

“…Both polysulfides and polyselenides have a non-branched structure where the S and Se atoms take place in the center of the molecules (Woodrow et al 1951, Möckel et al 1985.…”

Section: Identification Of Polyselenidesmentioning

confidence: 99%

Application of hyphenated analytical techniques in the investigation of selenium speciation of different plants

Németh¹

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The retention of selenium chains in reversed-phase liquid chromatography

Cited by 11 publications

References 10 publications

Identification and quantification of inorganic and organic selenium compounds with highperformance liquid chromatography

Identification and quantification of inorganic and organic selenium compounds with highperformance liquid chromatography

The relationship of selenium tolerance and speciation in Lecythidaceae species

Application of hyphenated analytical techniques in the investigation of selenium speciation of different plants

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