Evaluation of 99 Pesticide Residues in Major Agricultural Products from the Western Highlands Zone of Cameroon Using QuEChERS Method Extraction and LC-MS/MS and GC-ECD Analyses. [PDF]
Foods, 2018 There is no information available on pesticide residue levels in major food commodities harvested in Cameroon, especially from the western highlands region, the food basket of the country.
Galani JHY +5 more
europepmc +2 more sources
Molecules, 2021 The binding of heat stable enterotoxin (STa) secreted by enterotoxigenic Escherichia coli (ETEC) to the extracellular domain of guanylyl cyclase c (ECDGC-C) causes activation of a signaling cascade, which ultimately results in watery diarrhea. We carried
Neha Gupta +4 more
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PLoS ONE, 2021 This study provides a review of methods used in the determination of organochlorine pesticides (OCPs) in ginseng and compares the effectiveness of three extraction methods (Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS), a modified QuEChERS ...
Pennante Bruce-Vanderpuije +7 more
doaj +1 more source
MONITORING OF PESTICIDE RESIDUES IN RIVER NILE WATER FROM EGYPT BY SOLID-PHASE EXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY AND GAS CHROMATOGRAPHY–MASS SPECTROSCOPY [PDF]
Arab Universities Journal of Agricultural Sciences, 2005 Solid-phase extraction (SPE), gas chromatography electron capture detector (GC-ECD) and gas chromatography nitrogen-phosphorous detector (GC-NPD) and gas chromatography–mass spectroscopy (GC-MS) were applied for trace-level de-termination of 20 ...
Hanaa Ali, M Osman, T Potter, M Mohamed
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Simultaneous Determination of Eight Pesticide Residues in Cowpeas by GC–ECD [PDF]
Journal of Chromatographic Science, 2016 A sensitive and effective method, using gas chromatography (GC) and an electron capture detector (ECD), for the simultaneous quantitative determination of bifenthrin, chlorothalonil, cyfluthrin, cypermethrin, difenoconazole, fenvalerate, procymidone and pyridaben residues in cowpea was developed and validated.
Zhi, Xu +3 more
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Application of LPME/GC-ECD for determination of PCP in water [PDF]
Science in China Series B: Chemistry, 2003 Liquid-phase microextraction (LPME) followed by gas chromatography (GC) coupled with an electron capture detector (ECD) was applied for the analysis of pentachlorophenol (PCP) in aqueous samples. After alkalization with Na2CO3 solution, PCP was acetylated with acetic anhydride.
Ping Li, Junxin Liu
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Acta Scientiarum: Animal Sciences, 2023 Analyzing the organochlorine pesticide (OCP) content in milk is relevantbecause it helps evaluate the quality of milk that reaches the consumer's table and also helps identify the geographical areas where there is a high possibility of contamination ...
Isabella Clarissa Vasconcelos Rêgo +8 more
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A novel, cost-effective analytical method for measuring high-resolution vertical profiles of stratospheric trace gases using a gas chromatograph coupled with an electron capture detector [PDF]
Atmospheric Measurement Techniques, 2023 The radiative balance of the upper atmosphere is dependent on the magnitude and distribution of greenhouse gases and aerosols in that region. Climate models predict that with increasing surface temperature, the primary mechanism for transporting ...
J. Li +15 more
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High-precision analysis of SF6 at ambient level [PDF]
Atmospheric Measurement Techniques, 2013 This work reports on the development of a technique for the precise analysis of ambient SF6. This technique, which involves a gas chromatograph/electron capture detector (GC-ECD) coupled with an Activated Alumina-F1 (AA-F1) column, performed well in the ...
J. S. Lim +4 more
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Optimisation and application of polybrominated diphenyl ethers extraction method [PDF]
Zbornik Matice Srpske za Prirodne Nauke, 2019 The optimal conditions for the extraction of eight polybrominated diphenyl ethers (PBDEs) were determined using 32 factorial design of experiments (DOE).
Stojić Nataša S. +4 more
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