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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Guo, Hongyue Armstrong, Daniel W. Wujcik, Chad E. Riter, Leah S. |
| Description | Author Affiliation: Guo H ( Monsanto Company, St Louis, MO, United States); Riter LS ( Monsanto Company, St Louis, MO, United States. Electronic address: lsriter@monsanto.com.); Wujcik CE ( Monsanto Company, St Louis, MO, United States. Electronic address: chad.e.wujcik@monsanto.com.); Armstrong DW ( University of Texas at Arlington, Arlington, TX, United States. Electronic address: sec4dwa@uta.edu.) |
| Abstract | A novel method based on high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) was developed for the sensitive determination of glyphosate and its major degradation product, AMPA in environmental water samples. The method involves the use of MS compatible mobile phases (0.1% formic acid in water and acetonitrile) for HPLC and direct analysis of water samples without sample derivatization. The method has been validated in different types of water matrices (drinking, surface and groundwater) by accuracy and precision studies with samples spiked at 0.1, 7.5 and 90 ppb. All mean accuracy values ranged from 85% to 112% for glyphosate and AMPA using both primary and secondary quantitative ion transitions (RSD ≤ 10%). Moreover, both primary and secondary ion transitions for glyphosate and AMPA can achieve the quantitation limits at 0.1 ppb. The linear dynamic range of the calibration curves were from 0.1 to 100 ppb for each analyte at each ion transitions with correlation coefficient higher than 0.997. |
| ISSN | 00219673 |
| Volume Number | 1443 |
| e-ISSN | 18733778 |
| Journal | Journal of Chromatography A |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-04-22 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chromatography, High Pressure Liquid Environmental Monitoring Methods Glycine Analogs & Derivatives Organophosphonates Analysis Tandem Mass Spectrometry Water Chemistry Limit Of Detection Journal Article Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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