ABSTRACT
Contents 41.1 Introduction .................................................................................................................837 41.2 Control of Growth Promoters .......................................................................................839 41.3 Sampling and Sample Preparation ............................................................................... 840
41.3.1 Samples from Animal Farms ......................................................................... 840 41.3.1.1 Water ........................................................................................... 840 41.3.1.2 Feed ............................................................................................. 840 41.3.1.3 Urine ............................................................................................ 841 41.3.1.4 Hair ............................................................................................. 841
41.3.2 Meat Samples ................................................................................................ 841 41.4 Methods for Cleanup of Growth Promoters and Th eir Residues .................................. 842
41.4.1 Extraction Procedures ................................................................................... 842 41.4.2 Immunoaffi nity Chromatography ................................................................. 842 41.4.3 Molecular Recognition .................................................................................. 842
41.5 Screening Methods ...................................................................................................... 843 41.5.1 Immunological Techniques ........................................................................... 843 41.5.2 Biosensors ..................................................................................................... 843 41.5.3 Chromatographic Techniques ....................................................................... 843
41.6 Confi rmatory Analytical Methods .............................................................................. 844 References ................................................................................................................................850
41.1 Introduction Growth promoters include a wide range of substances that are generally used in farm animals for therapeutic and prophylactic purposes. Th ese substances can be administered through the feed or
