An analytic method for shipboard extraction of the odour compounds, 2-methylisoborneol and geosmin / Brian Brownlee [and five others].: En13-5/04-174E-PDF
"Extractions for the analysis of geosmin and 2-methylisoborneol (MIB) were carried out on board a research vessel by extracting water samples in the collection bottles with dichloromethane. The extracts are stable and can be stored for up to two months with no apparent loss of analytes. Workup and analysis could be done at the rate 15-20 samples per week. Approximately 150 samples from Lake Ontario were analyzed in 2000 and 120 samples in 2001. Concentrations as low as 1 ng/L could be detected, but reliable determination was only attained above 5 ng/L (> 30% qualifier ion match within 150%). Reproducibility between duplicates was generally better than 10%, and recovery of surrogate standards from reagent water averaged ca. 80% and from lake water ca. 60%. In early Septernber, 2000, geosmin concentrations in Lake Ontario ranged from 1-13 ng/L and MIB from 1-31 ng/L. In 2001, the ranges were 1-47 and 1-56 ng/L for geosmin and MIB, respectively. Lowest concentrations occurred in the western and central regions and highest concentrations in the eastern region and St. Lawrence River"--Abstract.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.868605&sl=0
| Department/Agency | Canada. Environment Canada. National Water Research Institute (Canada) |
|---|---|
| Title | An analytic method for shipboard extraction of the odour compounds, 2-methylisoborneol and geosmin / Brian Brownlee [and five others]. |
| Series title | NWRI contribution ; 04-174 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographic references. |
| Publishing information | Burlington, Ontario : National Water Research Institute, Environment Canada, [2004] |
| Author / Contributor | Brownlee, B. G., author. |
| Description | 1 online resource (16 pages) |
| Catalogue number |
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| Subject terms | Lakes Water management |