00359pam a2200133 a 4500020002000000041000800020082001300028100001700041245008500058260003100143300000900174653002500183700001700208  a9788126517374c  aeng  a543bHAW  aHawcroft, D.  aQuantitative Bioassay : Analytical Chemistry By Open LearninghTextual Documents  aWeinheimbJohn Wileyc1987  a300.  aAnalytical Chemistry  aHector, T H.