TY - RPRT TI - Screening for basic drugs in equine urine using direct-injection differential-gradient LC-LC coupled to hybrid tandem MS/MS. AU - Shawn M R Stanley AU - Hsiao Ching Foo PY - 2006 DO - 10.1016/j.jchromb.2006.03.034 UR - https://pubmed.ncbi.nlm.nih.gov/16617036/ ID - 16617036 ER -