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The amino acid L-histidine was separated by reversed phase HPLC and detected by evaporative light scattering and UV at 220nm. The ELSD was able to resolve the L-histidine from impurities while the UV was not.
Derivatized alkaloid compounds in banned herbal supplement Ephedra separated by capillary GC/FID in 4 minutes.
Sixteen EPA Method 608 pesticides were baseline resolved in 17 minutes on a capillary column by GC/ECD.
Oligosaccharides found in beer were separated by reversed phase HPLC and detected by evaporative light scattering.
Caffeine and aspirin were separated by HPLC/ELSD.
Descriptions and examples of calculations required to determine compliance with EPA quality control criteria for chromatographic measurements are presented.
Six sugar standards were separated by reversed phase HPLC and detected by evaporative light scattering.