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A simple, rapid and sensitive method for determining 10 arylamine compounds in wastewater sample using solid-phase extraction (SPE) and high performance liquid chromatography (HPLC) with UV detection is developed. An SPE procedure is described for extracting and preconcentrating the arylamines on Sep-Pak C18 cartridges with methanol as solvent. A mobile phase gradient of acetonitrile-water was used...
A method for the determination of lower aliphatic carbonyl compounds in stack gas was described. Carbonyls were sampled with 2,4-dinitrophenylhydrazine (DNPH). The sorbent was extracted with carbon disulfide, and the hydrazones were determined by micellar electrokinetic chromatography (MEKC) with UV detection at 214 nm. Under the optimized MEKC conditions, the DNPH derivatives of the three carbonyls...
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