00353nam a2200157Ia 4500008004100000041000800041082000800049100001500057245003000072260001900102300000800121365000700129500001400136501000800150650003700158230725s2005    xx            000 0 und d  aeng  bWAL  aWALL PETER  aTHIN LAYER CHROMATOGRAPHY  bR. S. C.c2005  a184  h20  aTEXT BOOK  aPQA  aPHARMACEUTICAL QUALITY ASSURANCE