| Publication Type |
Journal Article |
| Title |
Monitoring traces of organochlorine pesticides in herbal matrices by bar adsorptive microextraction - Application to black tea and tobacco |
| Authors |
S. M. E. Ahmad M. I. Gomes A. H. Ide N. R. Neng J. M. F. Nogueira |
| Groups |
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| Journal |
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY |
| Year |
2019 |
| Month |
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| Volume |
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| Number |
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| Pages |
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| Abstract |
Bar adsorptive microextraction followed by microliquid desorption and gas chromatography-mass spectrometry, under the selected ion monitoring acquisition mode, has been developed for the determination of 20 organochlorine pesticides (OCPs) in herbal matrices. Assays performed on 25 mL of ultra-pure water samples spiked at the 2.0 mu g L-1 level, yielded average recoveries ranging from 14.0\% to 95.1\% for the target OCPs, under optimised experimental conditions. The proposed analytical methodology demonstrated suitable detection limits (0.10-0.15 mu g L-1) and good linear dynamic ranges (0.5-100.0 mu g L-1) with determination coefficients equal or higher than 0.9900. The proposed methodology, by using the standard addition method, proved to be a suitable sorption-based static microextraction alternative to monitor traces of OCPs in black tea and tobacco products, in compliance with the green analytical chemistry principles. |
| DOI |
http://dx.doi.org/10.1080/03067319.2019.1682140 |
| ISBN |
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| Publisher |
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| Book Title |
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| ISSN |
0306-7319 |
| EISSN |
1029-0397 |
| Conference Name |
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| Bibtex ID |
ISI:000494007700001 |
| Observations |
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