الفهرس 
Determination of some pesticide residues in water and soft drinks
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Abstract
An applicable gas & liquid chromatographic (GC- MSMS & LC-MSMS) method was performed. It was found to be specified to determine the residues of certain organochlorine, organonitrogen, carbamate, and organophosphorous pesticides using SPE technique in water and soft drinks (colored and non colored). The method performance was tested on 402 pesticides representing different types and groups of pesticides. The average recovery of these pesticides using a concentration range of 0.05-1.0 og/L (ppb) for water and 0.1-1.0 og/L (ppb) for soft drink varied between 70 to 120%. The reproducibility expressed as relative standard deviation (CV) was less than 16.0%.The method showed to be linear at least up to 1.0 og/L.The limit of quantitation (LOQ) in drinking water samples was 0.05og/L but in soft drinks (colored and non colored) samples was 0.1 og/L.The measurement uncertainty expressed as expanded uncertainty and terms of relative standard deviation (at 95% confidence level) was found to be within the range of ± 32%. According to the good results of method in validation and performance test (PT) the method was accredited by the FINAS assessor{u2019}s team in 2016