本文主要研究微量铅在多种微量元素共存时,采取加入基体改进剂——铂来测定原油、重油中的微量铅。处理样品时,须在每100克油中有4毫升H_2SO_4存在下碳化,在550℃马弗炉中灰化4小时,用1:1的HNO_(s)溶样,并蒸煮至2毫升左右,加入浓度为50微克/毫升的铂,按分析条件进行测定。回收率为95-102%,相对标准偏差为2.8-10.1%。 This paper mainly studies the trace lead in the presence of a variety of trace elements, the addition of matrix modifier - platinum to determine the crude oil, heavy oil trace lead. The sample to be processed must be carbonized in the presence of 4 ml of H 2 SO 4 per 100 g of oil, ashed in a muffle furnace at 550 ° C for 4 hours, dissolved in 1: 1 HNO_ (s), and cooked to about 2 ml, Platinum was added at a concentration of 50 μg / ml and assayed according to the analytical conditions. The recovery was 95-102% with a relative standard deviation of 2.8-10.1%.