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Detection of environmental polyorganosiloxanes (silicones) by silicon‐29 NMR spectroscopy
Author(s) -
Bellama Jon M,
Meyer Stephen R,
Pellenbarg Robert E
Publication year - 1991
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590050207
Subject(s) - chemistry , detection limit , sediment , spectroscopy , silicon , nuclear magnetic resonance spectroscopy , sample preparation , analytical chemistry (journal) , qualitative analysis , chromatography , organic chemistry , biology , qualitative research , paleontology , social science , physics , quantum mechanics , sociology
The utility of 29 Si NMR spectroscopy has been demonstrated on sediment‐like materials in the quantitative and qualitative determination of polyorganosiloxanes (silicones) in selected environmental samples. This technique is highly selective for polydimethylsiloxanes (PDMS) and is non‐destructive to the sample. Also, specific identification of polyorganosiloxanes in sediment is possible, in contrast to previous methods which provided only quantitative information while consuming the sample. The detection limit for a 9 h experiment is approximately 45 ppm.