Search results for "SPME"

showing 3 items of 53 documents

Poszukiwanie związków biologicznie aktywnych zawartych w oleju z nasion chaulmoogra Hydnocarpus wightianus blume

2023

terpenyzwiązki lotneSPMEolej chaulmoograGC-MS
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HS-SPME and GC-MS as valid tools to assess volatile organic compounds from soil natural organic matter

2008

volatile organic compounds humic acids SPMESOIL HUMIC SUBSTANCES HS-SPME NMR
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Levels and Potential Health Hazards of Chlorinated Pesticidesin Surface Water Samples of Charsadda Area of Pakistan Using SPME-GC-ECD Technique

2021

In the present study, we determined the levels of chlorinated pesticide residues in surface water samples collected from the Charsadda district (KPK, Pakistan). SPME-GC-ECD with COMBI PAL CTC autosampler was used for extraction and analysis of 20 organochlorine pesticides in the collected water samples. For maximum efficiency of the SPME procedure, several parameters were studied, including the extraction and desorption time of the fiber, solution pH, agitation of samples, and stirring speed, etc. This method showed good liner response, with R2 values in the range of 0.9887 to 0.9999 for all pesticides. This method also provided good percent recoveries at 1 µg L−1 (87.5 to 106.0%) and at 2 …

water samplesHeptachlorHeptachlor EpoxideGeography Planning and DevelopmentSPMEChlordaneAquatic Sciencecancer riskBiochemistryDieldrinchemistry.chemical_compoundAldrinTD201-500Water Science and Technologychlorinated pesticidesWater supply for domestic and industrial purposesGeovetenskap och miljövetenskapHydraulic engineeringPesticidechemistryEnvironmental chemistryEndrinGC-ECDEarth and Related Environmental SciencesTC1-978Surface water
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