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Determination of trace amounts of off-flavor compounds in drinking water by stir bar sorptive extraction and thermal desorption GC-MS.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ochiai, Nobuo Sasamoto, Kikuo Takino, Masahiko Yamashita, Shogo Daishima, Shigeki Heiden, Arnd C. Hoffman, Alon |
| Copyright Year | 2001 |
| Abstract | A method for the determination of trace amounts of off-flavor compounds including 2-methylisoborneol, geosmin and 2,4,6-trichloroanisole in drinking water was developed using the stir bar sorptive extraction technique followed by thermal desorption-GC-MS analysis. The extraction conditions such as extraction mode, salt addition, extraction temperature, sample volume and extraction time were examined. Water samples (20, 40 and 60 ml) were extracted for 60-240 min at room temperature (25 degrees C) using stir bars with a length of 10 mm and coated with a 500 microm layer of polydimethylsiloxane. The extract was analyzed by thermal desorption-GC-MS in the selected ion monitoring mode. The method showed good linearity over the concentration range from 0.1 or 0.2 or 0.5 to 100 ng l(-1) for all the target analytes, and the correlation coefficients were greater than 0.9987. The detection limits ranged from 0.022 to 0.16 ng l(-1). The recoveries (89-109%) and precision (RSD: 0.80-3.7%) of the method were examined by analyzing raw water and tap water samples fortified at the 1 ng l(-1) level. The method was successfully applied to low-level samples (raw water and tap water). |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/B102962M |
| Alternate Webpage(s) | http://lib3.dss.go.th/fulltext/journal/analyst/analyst2001/no.10/(10)2001vol126(1652-1657).pdf |
| PubMed reference number | 11693600 |
| Alternate Webpage(s) | https://doi.org/10.1039/B102962M |
| Journal | Medline |
| Volume Number | 126 |
| Issue Number | 10 |
| Journal | The Analyst |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
