003240000a22001330004500060000800000100001700008100001400025100001700039245004700056260004400103260000900147300000900156650002500165  a100  aHerman, J.A.  aIrving, H  aRosentbal, I  aSeperation methods in analytical chemistry  aNew York, Inter Science Publishers, Inc  c1961  a1467  aAnalytical chemistry