石墨探针采样／石墨炉原子吸收光谱测定大气微粒物质中的痕量铁  

Determination of Trace Iron in Atmospheric Particulate Matter by Graphite Probe Filter Collection and Graphite Furnace Atomic Absorption Spectrometry

作　　者：张必成[1] 

机构地区：[1]湖北大学化学系

出　　处：《应用化学》1994年第2期85-88,共4页Chinese Journal of Applied Chemistry

摘　　要：采用一定规格的石墨探针直接收集大气微粒物质，并采用原子吸收光谱法测定其中的痕量铁。Trace amount of iron in atmospheric particulate matter has been directly deter-mined by graphite probe furnace atomic absorption spectrometry after collection with agraphite probe filter.The method was accurate,sensitive,and rapid.It has a recovery of98%and a precision of 3.0%RSD , being checked against the certified values of NBS SRM-1648 urban particulate matter. The concentration of iron and absorbance(Peak-area mode)showed an excellent linear relation in the range of 0～100ng/ml and no memory effect.Thecharacteristic mass and detection limit of iron were 14.6pg and 24.0pg,respectively.

关 键 词：GFAAS 石墨探针 铁 大气监测 

分 类 号：X831.02[环境科学与工程—环境工程]