广西科学Issue(2)：160-163,4.
微波消解-石墨炉原子吸收光谱法测定亚热带水果中铅
Determination of Lead in Subtropical Fruits with Micro-wave Digestion and Graphite Furnace Atomic Absorp-tion Spectrometry
摘要
Abstract
Objective]The aim of this study was to establish the method that the samples were digested with microwave and the Pb content in subtropical fruits was determined by graphite furnace atomic absorption spectrometry.[Methods]The subtropical fruit samples were digested with HNO3 solutions,the digested solution was heated to eliminate HNO3 and the final volume was made to 25 mL.Microwave conditions and operational conditions of graphite furnace atomic absorption spectrometry were optimized,and the various optimal analytical conditions were in-vestigated and verified.[Results]The calibration curve was linear in the range of 0~8.0μg/L for Pb with detection limit of 1.247 μg/L,RSD was 4.7%,and the recoveries were between 95·0% and 102.0%.The determination results of Pb in standard sample were agreed with the standard value.[Conclusion]The method is simple and reveals high sensitivity, good recovery rate and repeatability,and it can be used for the determination of lead in subtropical fruits.关键词
微波消解/石墨炉原子吸收光谱法/铅/亚热带水果Key words
microwave digestion/graphite furnace atomic absorption spectrometry/lead/subtropical fruits分类
化学化工引用本文复制引用
唐昭领,莫建光,王天顺,牙禹..微波消解-石墨炉原子吸收光谱法测定亚热带水果中铅[J].广西科学,2015,(2):160-163,4.基金项目
广西科技基础条件平台建设项目(08-05-01D)资助。 （08-05-01D）
