岩矿测试Issue(5)：539-543,5.DOI:10.15898/j.cnki.11-2131/td.2015.05.007
微波消解-石墨炉原子吸收光谱法测定火山灰中的痕量铅铬铜
Determination of Trace Lead,Chromium and Copper in Volcanic Ash from Shinmoe-Dake Volcano by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry
摘要
Abstract
Volcanic ash is an important parent material for soil and is easily weathered. Pb,Cr and Cu are the main heavy metals in weathered volcanic ash and are inevitably discharged into the environment and finally harmful to human health. A simple and reliable method for the determination of Pb,Cr and Cu in volcanic ash by microwave digestion combined with Graphite Furnace Atomic Absorption Spectrometry ( GFAAS ) has been proposed. The ashing temperatures are 600℃ for Pb,1000℃ for Cr and 800℃ for Cu. The atomization temperatures are 1800℃ for Pb and Cu,and 2200℃ for Cr. The detection limits of the proposed method are 3. 50, 0. 92 and 1. 22 ng/mL for Pb,Cr and Cu,respectively. The relative standard deviations( RSDs)for eleven replicate analyses(50 ng/mL)of the above three metals are less than 4%,and the spiked recoveries by standard addition are 92. 8% -107. 0%. The proposed method is rapid and convenient with high accuracy and low cost.关键词
火山灰/重金属/硝酸-氢氟酸/微波消解/石墨炉原子吸收光谱法Key words
volcanic ash/heavy metals/nitric acid-hydrofluoric acid/microwave digestion/Graphite Furnace Atomic Absorption Spectrometry分类
化学化工引用本文复制引用
侯广顺,李英杰,刘瑞恒,谭路路..微波消解-石墨炉原子吸收光谱法测定火山灰中的痕量铅铬铜[J].岩矿测试,2015,(5):539-543,5.基金项目
国家自然科学基金资助项目（41003015）；河南省教育厅自然科学研究计划项目 （）
