Determination of silicate anions by gas chromatographic separation and mass spectrometric identification of their trimethylsilyl derivatives

Wu, Fangning; Götz, J.; Jamieson, W. D.; Masson, C. R.

doi:10.1016/s0021-9673(01)85585-0

Cited by 68 publications

(4 citation statements)

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“…Silicates up to Si 4 O 12 (both ring and chain forms of the Si 3 and Si 4 compounds) have also been successfully analysed. Mass spectra contained ions produced either by successive loss of 88 u (loss of (CH 3 ) 2 CH 2 SiO) and/or 162 u (loss of (CH 3 ) 3 Si‐O‐Si(CH 3 ) 3 ] (Wu et al, ). Selenium dioxide has given a single GLC peak and an abundant ion at m/z 147 (Burgett, ).…”

Section: Trimethylsilyl Derivativesmentioning

confidence: 99%

Mass Spectrometric Fragmentation of Trimethylsilyl and Related Alkylsilyl Derivatives

Harvey

Vouros

2019

Mass Spectrometry Reviews

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This review describes the mass spectral fragmentation of trimethylsilyl (TMS) and related alkylsilyl derivatives used for preparing samples for analysis, mainly by combined gas chromatography and mass spectrometry (GC/MS). The review is divided into three sections. The first section is concerned with the TMS derivatives themselves and describes fragmentation of derivatized alcohols, thiols, amines, ketones, carboxylic acids and bifunctional compounds such as hydroxy‐ and amino‐acids, halo acids and hydroxy ethers. More complex compounds such as glycerides, sphingolipids, carbohydrates, organic phosphates, phosphonates, steroids, vitamin D, cannabinoids, and prostaglandins are discussed next. The second section describes intermolecular reactions of siliconium ions such as the TMS cation and the third section discusses other alkylsilyl derivatives. Among these latter compounds are di‐ and trialkyl‐silyl derivatives, various substituted‐alkyldimethylsilyl derivatives such as the tert‐butyldimethylsilyl ethers, cyclic silyl derivatives, alkoxysilyl derivatives, and 3‐pyridylmethyldimethylsilyl esters used for double bond location in fatty acid spectra. © 2019 Wiley Periodicals, Inc. Mass Spec Rev 0000:1–107, 2019

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Section: Trimethylsilyl Derivativesmentioning

confidence: 99%

Mass Spectrometric Fragmentation of Trimethylsilyl and Related Alkylsilyl Derivatives

Harvey

Vouros

2019

Mass Spectrometry Reviews

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“…GLPC of trimethylsilylated derivatives of various silicic acids was reported by Wu et al (1970) and Garz6 and Hoebbel (1976) who analyzed a series of trimethylsilylated de-…”

Section: Resultsmentioning

confidence: 95%

Preparation of Organosilicate Compounds from Phlogopite by Trimethylsilylation

Kuroda

1978

Clays and clay miner.

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Abstract--The reaction of phlogopite with a trimethylsilylating reagent yielded organosilicate compounds which are soluble in various organic solvents. Gas chromatographic analysis of the soluble products indicates that they consist of the trimethylsilylated derivatives of silicic acids which have been formed in the decomposition of phiogopite by hydrochloric acid and that silicic acids formed by the acid attack are monomeric and also oligomeric. The increase of the ratio of GC peak areas of monomer derivative to dimer one with an increase of the reaction time shows that silicic acids in the reaction system tend to depolymerize. The difference between phlogopite and biotite in the ease of trimethylsilylation also is discussed.

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“…The trimethylsilyl (TMS) derivatives are stable and sufficiently volatile to be separated and analysed by gas/liquid partition chromatography at temperatures up to 300'C. Wu et al (1970) used high-resolution mass spectrometry directly to determine the molecular weight and hence the degree of polymerization of the TMS derivatives revealed by chromatography. According to Gotz andMasson (1970, 1971), the following reactions occur in the trimethylsilylation of silicates.…”

Section: Introductionmentioning

confidence: 99%

Trimethylsilylation of commonly occurring primary and secondary minerals in soils

Smith¹,

Paterson²,

Mitchell³

1982

Journal of Soil Science

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Soil is formed through the weathering of minerals-mainly silicates-and the manner in which these materials weather is related to some extent to the arrangement ofsilica units within their structures. This has been termed the degree ofpolymerizafion ofthe silica and can be quantitatively assessed by preparing organic (trimethylsilyl) derivatives which can be separated and identified. This procedure has been applied to a number of primary and secondary (including clay and highly disordered) minerals occurring in soils and has indicated that: (a) of the primary minerals, the ferromagnesian are the most susceptible to acid attack; (b) inorganic gels, particularly those high in alumina, are reactive; and (c) crystalline clay minerals, especially kaolinite and illite, are relatively stable.

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Determination of silicate anions by gas chromatographic separation and mass spectrometric identification of their trimethylsilyl derivatives

Cited by 68 publications

References 4 publications

Mass Spectrometric Fragmentation of Trimethylsilyl and Related Alkylsilyl Derivatives

Mass Spectrometric Fragmentation of Trimethylsilyl and Related Alkylsilyl Derivatives

Preparation of Organosilicate Compounds from Phlogopite by Trimethylsilylation

Trimethylsilylation of commonly occurring primary and secondary minerals in soils

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