海量图书期刊资源，随时随地畅享阅读乐趣
Advances in stir bar sorptive extraction for the determination of acidic pharmaceuticals in environmental water matrices: Comparison between polyurethane and polydimethylsiloxane polymeric phasesAna Rita M. Silva; Fátima C.M. Portugal; J.M.F. Nogueira · 2008