An empirical study on the selection of analytes and corresponding cutoffs for immunoassay and GC–MS in a two-step test strategy—buprenorphine example

Meng-Yan Wu, Yu-Shan Wang, Ching-Chiang Lin, Dong-Liang Lin, Lien-Wen Su, Mei-Han Huang, Ray H. Liu
  • The Analyst, January 2009, Royal Society of Chemistry
  • DOI: 10.1039/b902137j