1991 年 7 巻 5 号 p. 745-747
Aluminum and indium chelates with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) were separated using a Shim-pack ODS column and pure acetonitrile or acetonitrile saturated with sodium chloride as the mobile phase. The In-PMBP chelate was not retained on the stationary phase with the acetonitrile mobile phase containing sodium chloride, indicating that this chelate decomposed to the charged species in the column. Using acetonitrile saturated with sodium chloride as the mobile phase, the concentration range 0-1.8×10-4M for Al- and In-PMBP complexes resulted in linear calibration graphs. Precisions of better than 2.6% for Al and 3.6% for In were achieved. The method provided detection limits of ca. 5×10-7M for Al and In in a 5μl injection, using detection at 290nm.
