00383nam a2200133Ia 4500008004100000082001500041100002000056245004600076260003500122300001300157600003100170600001900201650002900220140224s9999    xx            000 0 und d  a543.544 H1  aZechmeister, L.  aPrinciples and practice of chromatography  aLondonbChapman and Hallc1950  axv,361p.  aCholnoky, L., joint author  aL. Zechmeister  aChromatographic analysis