Wolf W R
J Chromatogr. 1977 Apr 1;134(1):159-65. doi: 10.1016/s0021-9673(00)82578-9.
The specific, precise detection of volatile metal chelates has been obtained by coupling the effluent from a gas chromatograph directly to the burner head of a commerical atomic absorption spectrometer (AAS). Quantitation of chromium in the nanogram range has been accomplished with a detection limit of 1.0 ng. The chelation-extraction-gas chromatographic separation procedure coupled with the selective detection by AAS gives a relatively interference-free system that has been used to quantitatively analyse for chromium in standard biological materials NBS SRM 1571 Orchard Leaves and SRM 1569 Brewers Yeast. Metal chelates of iron, copper and cobalt have also been detected by this system.
通过将气相色谱仪的流出物直接连接到商用原子吸收光谱仪（AAS）的燃烧器头部，实现了对挥发性金属螯合物的特异性、精确检测。已完成纳克级铬的定量分析，检测限为1.0纳克。螯合萃取-气相色谱分离程序与AAS的选择性检测相结合，提供了一个相对无干扰的系统，该系统已用于定量分析标准生物材料NBS SRM 1571果园树叶和SRM 1569啤酒酵母中的铬。该系统还检测到了铁、铜和钴的金属螯合物。
