Analytical pyrolysis of carbohydrates in the presence of hexamethyldisilazane

Fabbri, Daniele; Chiàvari, Giuseppe

doi:10.1016/s0003-2670(01)01359-9

Cited by 84 publications

(57 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The suite of markers described in this work for resins along with those obtained for lipids [16], amino acids [17] and carbohydrates [18] can be utilised for a rapid evaluation of the composition of complex organic mixtures, such as those encountered in paint layers, by pyrolysis-silylation-GC-MS. The analysis of real samples by pyrolysis-silylation is under way.…”

Section: Resultsmentioning

confidence: 99%

Characterisation of natural resins by pyrolysis—Silylation

2002

View full text Add to dashboard Cite

SummaryMany organic materials release polar compounds containing -OH groups when subjected to pyrolysis. To improve GC detection of such polar compounds derivatisation with the silylating reagent hexamethyldisilazane (HMDS) can be achieved in situ while pyrolysing the sample (pyrolysis -silylation).In this study pyrolysis -silylation in combination with GC-MS was applied for the analysis of natural resins, utilised in artistic fields namely sandarac (Cupressaceae), Manila copal (Araucariaceae), colophon~ Venice turpentine, Strasbourg turpentine (Pinaceae), dammar, mastic, and shellac.Pyrolysis-silylation of natural resins resulted in the formation of several silylated compounds characteristic of the different kinds of resins.The trimethylsilyl (TMS) ester of sandaracopimaric acid was a prominent compound released from sandarac. Pinaceae resins produced TMS esters of pimaric, isopimaric, methyl dehydroabietic and abietic acids. TMS esters of linear aliphatic and aromatic acids were generated from shellac. Distinctive though as yet unidentified silylated compounds were released from Manila copal and triterpenic resins.

show abstract

Section: Resultsmentioning

confidence: 99%

Characterisation of natural resins by pyrolysis—Silylation

2002

View full text Add to dashboard Cite

show abstract

“…First attempts to combine pyrolysis with in situ HMDS silylation of organic art materials were reported by Chiavari et al, who were successful in obtaining trimethylsilyl derivatives of fatty acids [52], amino acids [53] and carbohydrates [54]. The same authors also applied pyrolysis-silylation to the analysis of different kinds of natural resins and for each of them diagnostic silylated compounds were identified, even if many were difficult to assign precise structures [55].…”

Section: On-line Derivatization Methods and Reagents For Py-gc/msmentioning

confidence: 99%

Py‐GC/MS of Natural and Synthetic Resins

Scalarone

Chiantore

2009

Organic Mass Spectrometry in Art and Archaeology

View full text Add to dashboard Cite

“…Whole oil analysis by direct gas chromatographic separation gives a good signal for levoglucosan and some other anhydrosugars, but a better approach is acetylation. The derivatization leads to improved vaporization in the injector and improved peak shape in the chromatogram [40][41][42][43][44][45].…”

Section: Acetylation For Sugar Characterizationmentioning

confidence: 99%