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| Content Provider | Springer Nature Link |
|---|---|
| Author | Polcaro, C. M. Berti, A. Rossi, A. Desiderio, C. |
| Copyright Year | 2003 |
| Abstract | A reversed phase capillary electrochromatographic method in combination with solid phase extraction on octadecyl-silica cartridges was optimized for the analysis of phenylurea herbicides at ppt concentration level in groundwater environmental samples. The optimum experimental conditions were found after evaluating several physico-chemical parameters affecting separation, e.g., the mobile phase organic solvent content and composition, the buffer concentration and pH and sample injection times. The method allowed the determination of phenylurea herbicides in groundwater at coincentration of 50 ppt (each herbicide's unextracted concentration) using 5mM morpholinethanesulfonic acid buffer pH 5.0 65% acetonitrile 5% methanol as mobile phase. The method was repeatable and linear in the range 1–2.5 μg·ml1(injected analyte concentration). The analysis of extracted groundwater samples from different wells detected the phenylureas in interference-free electrochromatograms in less than 9 min at 50 and 100 ppt level (unextracted sample concentration). Different sample matrices seemed not to affect the optimized method. |
| Starting Page | 623 |
| Ending Page | 628 |
| Page Count | 6 |
| File Format | |
| ISSN | 00095893 |
| Journal | Chromatographia |
| Volume Number | 57 |
| Issue Number | 9-10 |
| e-ISSN | 16121112 |
| Language | English |
| Publisher | Vieweg Verlag |
| Publisher Date | 2003-01-01 |
| Publisher Place | Wiesbaden |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Capillary Electrochromatography Solid Phase Extraction Herbicides Groundwater Analytical Chemistry Organic Chemistry Pharmacy Biochemistry Plant Sciences Measurement Science, Instrumentation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry |
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