Chromatographic techniques Radioisotope techniques 4 Centrifugation techniques 3 Electrochemical techniques 2 Electrophoretic techniques 2 Spectroscopic techniques 2 Biochemical investigation 1 Biochemical investigations 1 Biochemistry 1 Biomolecular interactions 1 Colorimetry and spectrometry 1 Electrophoresis 1 Enzymes 1 Gene analysis 1 General principles of biochemical investigations 1 Immunochemical techniques 1 Molecular Biology 1 Molecular cloning 1 Protein structure 1