An easy, simple and efficient analytical method was standardized and validated for the estimation of residues of propamocarb in tomato and soil. QuEChERS method included extraction of the sample with ethyl acetate and cleanup by treatment with PSA and graphatised carbon. Final clear extracts of ethyl acetate were concentrated under vacuum to almost dryness and reconstituted into hexane. The res...

A rapid and sensitive single residual method (SRM) for the determination of ethephon which resemble a very polar, non-QuEChERS-amenable and plant growth regulator was developed. This method is applicable for determination of ethephon in vegetables, fruits and herbs. This method is simply based on extraction of ethephon with deionized water with using an equal amount of dichloro methane in order...

Method verification is an internal quality control procedure verifying the suitability of method for specific purposes. All methods should be verified prior to analyses real samples. LOQ, range linearity, precision, accuracy and recovery criteria have taken into consideration while performing verification. This study was conducted verify QuEChERS analysis boscalid, chlorpyrifos tebuconazole in ...

wastewater contains a variety of chemical substances owing to the different sources that contribute to affluent into sewage treatment plants. raw and wastewater samples were obtained from the surface of the water bodies at depths of 50 and 100 metres but at different locations in each sampling site. the water samples were subjected to extraction of polychlorinated biphenyls (pcbs) using quecher...