00321pam a2200121 a 4500020002000000041000800020082001300028100002000041245007900061260002500140300000900165653002500174  a9788126517282c  aeng  a543bWHI  aWhiston, Clive.  aX - Ray Methods : Analytical Chemistry By Open LearninghTextual Documents  aWeinheimbJohn Wiley  a426.  aAnalytical Chemistry