00295nam a2200109Ia 450000500170000000800410001708200140005810000210007224500410009326000430013430000080017720260224041003.0260224s9999||||xx |||||||||||||| ||und||  a542.1 ARM  aArmarego, W.L.F. 0aPurification of laboratory chemicals  aBoston : Butterworth Heinemann, c1996  a529