This application note describes the use of ISOLUTE® ENV+ on-line cartridges in a fully automated on-line SPE-LC-MS/MS method for extraction and quantification of 16 acid herbicides in drinking and surface water.
2,4,5-T 2,4-D 2,4-DB Acid herbicides Application Notes Asulam Benazolin Bentazone Bromoxynil Dicamba Dichlorprop Drinking water English Environmental Ioxynil MCPA MCPB Mecoprop On-line SPE On-line SPE-LC-MS/MS Pentachlorophenol Quinmerac Surface water Triclopyr Water
The first decision that needs to be made is what the final analysis will be for the analyte. This will have an impact on the sample and cartridge size, as well as the final elution solvent. Gas chromatography offers higher sensitivity than HPLC, while HPLC is better suited for ionisable species and very high molecular weights. If LC-MS is available, minimal sample clean-up may be required.