平台石墨炉原子吸收法测定石脑油中铅时基体改进剂的选择

摘要

Interference of matrix modifiers and the atomization behavior of Pb with different test technique, determinating Pb in naphta with platform graphite furnace AAS have been studied. Mg(NO3)2 as a very good matrix modifier was described. The characteristic mass of Pb is very high, and the interference of matrix is very low.%考察了平台石墨炉原子吸收技术测定石脑油中铅时， 几种基体改进剂的影响，研究了不同测试条件下铅的原子化信 号曲线，选择Mg(NO3)2作为测定铅时较合适的基体改进剂，特征 量较高，基体效应降至最低。