1) Which is the best and easy method available for extracting pesticide residues from sewage sludge samples?
2) combination of acid mixture that can be used for microwave assisted digestion of sewage and sludge samples for trace metal analysis.
Dear Sir,
1) I think ultrasound-assisted extraction is best method for the sludge samples.
The following link can help you
http://www.ncbi.nlm.nih.gov/pubmed/21313796.
2)Please find the attachments for the trace metal analysis in sewage sludge.
Thank you,
Regards,
Praveen.
Depends on the pesticide. For many organohalides, I recommend evaporation followed by direct solvent extraction with 100% acetone, then solvent-switch to hexane, and cleanup with florisil.
See http://pubs.acs.org/doi/abs/10.1021/acs.est.5b04516
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