Abtrennung und Bestimmung des Fluorid-Ions mit Hilfe siliciumorganischer Verbindungen

Böck, Rudolf; Semmler, Hans Joachim

doi:10.1007/bf00527830

Cited by 49 publications

(13 citation statements)

References 4 publications

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“…Fluoride is determined in the obtained hydrolyzate. As the application of ion-chromatography in determination of fluoride in hydrolyzate was unsuccessful [97], the use of other modes of chromatography for determination of fluoride required a derivatization to fluorosilane derivative [97, 98]. The obtained derivative can be determined both by RP-HPLC with UV detection [97], as well as GC with FID or MS detection [99].…”

Section: Determination Of Total Organic Fluorine (Tof)mentioning

confidence: 99%

Recent developments in methods for analysis of perfluorinated persistent pollutants

Trojanowicz

Koc

2013

Microchim Acta

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Perfluoroalkyl substances (PFASs) are proliferated into the environment on a global scale and present in the organisms of animals and humans even in remote locations. Persistent organic pollutants of that kind therefore have stimulated substantial improvement in analytical methods. The aim of this review is to present recent achievements in PFASs determination in various matrices with different methods and its comparison to measurements of Total Organic Fluorine (TOF). Analytical methods used for PFASs determinations are dominated by chromatography, mostly in combination with mass spectrometric detection. However, HPLC may be also hyphenated with conductivity or fluorimetric detection, and gas chromatography may be combined with flame ionization or electron capture detection. The presence of a large number of PFASs species in environmental and biological samples necessitates parallel attempts to develop a total PFASs index that reflects the total content of PFASs in various matrices. Increasing attention is currently paid to the determination of branched isomers of PFASs, and their determination in food.FigureThe aim of this review is to present recent achievements in perfluoroalkyl substances (PFASs) determination in various matrices with different methods and its comparison to measurements of Total Organic Fluorine (TOF). Increasing attention is currently paid to the determination of branched isomers of PFASs, and their determination in food.

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Section: Determination Of Total Organic Fluorine (Tof)mentioning

confidence: 99%

Recent developments in methods for analysis of perfluorinated persistent pollutants

Trojanowicz

Koc

2013

Microchim Acta

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“…6,7 The reagent used for derivatizationTPSiOH has a higher boiling point than the previously used reagents [11][12][13] so it is easier to prepare the samples as well as conduct separation by GC with a suitable temperature program. The presence of three phenyl groups makes TPSiOH more universal as a derivatization reagent because the reaction product may be determined by the GC and the HPLC.…”

Section: Resultsmentioning

confidence: 99%

“…GC determination of fluoride with flameionization detection (FID) were developed in 1960s with derivatization of fluoride ion to volatile triethylfluorosilane 11 or trimethylfluorosilane. 12,13 The total content of fluorine in whole blood, serum/plasma and other biological samples was determined by GC using oxygen bomb combustion and reaction with triethylsilanol.…”

Section: Introductionmentioning

confidence: 99%

Application of Gas Chromatography to Determination of Total Organic Fluorine after Defluorination of Perfluorooctanoic Acid as a Model Compound

Koc¹,

Donten²,

Musijowski³

et al. 2011

Croat. Chem. Acta

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Abstract. Because of the global presence of anthropogenic perfluorinated organic compounds in the environment, foods and living organisms, and their large structural variety, it can be helpful to develop a method for determination of their total content at trace level in different matrices. In the developed method, the defluorination was carried with sodium biphenyl, derivatization of released fluoride to triphenylfluorosilane and determination by gas chromatography. Three detection methods were compared: flameionization detection, electron capture detection and mass spectrometry. Among them the MS detection was found to be the most favorable one in terms of the instrumental limit of detection (LOD) , whereas the flame-ionization detection was considered to be the most favorable in terms of the method limit of detection (MDL). For the initial sample volume of 1 L and performing the whole procedure of determination, including preconcentration, the MDL value for perfluorooctanoic acid was evaluated as 0.043 ppb.

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“…Preliminary pharmacokinetic parameters of fluoride obtained in two subjects are reported. (Pharm Weekbl [Sci] I984;(6)(7)(8)(9) …”

mentioning

confidence: 99%

A new and improved gas Chromatographic method for the determination of fluoride in plasma and faeces

Glerum

Dijk

Klein

1984

Pharmaceutisch Weekblad Scientific Edition

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A method is described that extracts fluoride selectively as trimethylfluorosilane using carbon tetrachloride and trimethylchlorosilane . Drawbacks of other methods as well as advantages of the proposed method are discussed. The method is directly applicable to plasma and faeces samples, has a short gas chromatographic run time due to the use of a backflush technique and is suitable for automation. Its lowest quantifiable limit for plasma and faeces is 10 micrograms/l and 1 microgram/g fluoride respectively, using 1.0 ml or 1.0 g samples. Preliminary pharmacokinetic parameters of fluoride obtained in two subjects are reported.

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Abtrennung und Bestimmung des Fluorid-Ions mit Hilfe siliciumorganischer Verbindungen

Cited by 49 publications

References 4 publications

Recent developments in methods for analysis of perfluorinated persistent pollutants

Recent developments in methods for analysis of perfluorinated persistent pollutants

Application of Gas Chromatography to Determination of Total Organic Fluorine after Defluorination of Perfluorooctanoic Acid as a Model Compound

A new and improved gas Chromatographic method for the determination of fluoride in plasma and faeces

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