TY - RPRT TI - Comparison of matrix solid phase dispersion (MSPD) with a standard solvent extraction method for sulphamethazine in pork muscle using high performance liquid and thin layer chromatography. AU - P Shearan AU - M O'Keeffe AU - M R Smyth DO - 10.1080/02652039409374197 UR - https://pubmed.ncbi.nlm.nih.gov/8181634/ ID - 8181634 ER -