Determination of decamethylcyclopentasiloxane in river water and final effluent by headspace gas chromatography/mass spectrometry.
A method is described for the analysis of decamethylcyclopentasiloxane (D(5)) in river water and treated waste water using headspace gas chromatography/mass spectrometry. Internal standard addition to samples and field blanks was carried out in the field to provide both a measure of recovery and to prevent any exposure of samples to laboratory air, which contained background levels of D(5). Measured levels of D(5) were typically in the range <10-29ngL(-1) in the River Great Ouse (UK) with slightly higher levels in the River Nene (UK). The measured concentration of D(5) in treated waste water varied between 31 and 400ngL(-1), depending on the type of treatment process employed.
Sparham
Chris
C
Safety & Environmental Assurance Centre, Unilever, Colworth Science Park, Sharnbrook, Bedfordshire MK44 1LQ, UK. chris.sparham@unilever.com
Van Egmond
Roger
R
O'Connor
Sean
S
Hastie
Colin
C
Whelan
Mick
M
Kanda
Rakesh
R
Franklin
Oliver
O
D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D012015:Reference Standards; D015203:Reproducibility of Results; D045483:Rivers / Q000737:chemistry*; D012833:Siloxanes / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D012833:Siloxanes; D014874:Water Pollutants, Chemical; C114768:decamethylcyclopentasiloxane