| Title: | Single-sided membrane introduction mass spectrometry for on-line determination of semi-volatile organic compounds in air |
| Author(s): | Riter LS; Takats Z; Cooks RG; |
| Address: | "Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA" |
| ISSN/ISBN: | 0003-2654 (Print) 0003-2654 (Linking) |
| Abstract: | "Construction, optimization, and testing of a novel single-sided configuration for a semi-permeable [poly(dimethylsiloxane); PDMS] membrane introduction system for mass spectrometry is described. On-line detection of semi-volatile organic compounds of environmental interest is shown, including lindane (a pesticide), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) (an explosive), butylated hydroxytoluene (BHT) (an antioxidant), 1,2-dichlorobenzene, dimethylmethyl phosphonate (DMMP) (a chemical warfare agent simulant) and naphthalene. The technique has limits of detection in the sub-ppb range. with rise times of 4 to 7 s and fall times of 12 to 36 s and a response that is linear over 4 orders of magnitude (from 0.1 ppb to 1000 ppb for DMMP). The cycle time, from crude air sampling to acquisition of results, is approximately 1 min. No sample preparation is necessary" |
| Notes: | "PubMed-not-MEDLINERiter, L S Takats, Z Cooks, R G eng England 2002/01/05 Analyst. 2001 Nov; 126(11):1980-4. doi: 10.1039/b105857f" |
