Kundu D, Roy S K
Central Glass and Ceramic Research Institute, 196 Raja S.C. Mullick Road, Calcutta 700 032, India.
Talanta. 1992 Apr;39(4):415-8. doi: 10.1016/0039-9140(92)80157-9.
A spectrophotometric method has been developed for determination of trace amounts of platinum in glass. The method is based on the extraction of platinum(II) from 1M hydrochloric acid containing 0.2M stannous chloride and 4 x 10(-4)M dithizone onto polyurethane foam, elution with acetone (containing 3% v/v concentrated hydrochloric acid) and measurement of the absorbance of the eluate at 530 nm. Beer's law is obeyed up to 10.0 microg/ml Pt. The minimum platinum level in the eluate that can be determined by this method is 0.1 microg/ml.
已开发出一种分光光度法用于测定玻璃中痕量铂。该方法基于将铂（II）从含有0.2M氯化亚锡和4×10⁻⁴M双硫腙的1M盐酸中萃取到聚氨酯泡沫上，用丙酮（含3% v/v浓盐酸）洗脱，并在530nm处测量洗脱液的吸光度。在铂含量高达10.0μg/ml时符合比尔定律。该方法能测定的洗脱液中铂的最低含量为0.1μg/ml。
