逆流流动注射在线萃取火焰原子吸收法测定水样中的铜、铁、铅、锰

Determination of Trace Fe、Cu、Pb and Mn in Water Using FAAS with Reverse Flow Injection Extraction System.

采用逆流流动注射在线萃取，用ＡＰＤＣ＋ＤＤＴＣ为络合剂，ＭＩＢＫ作萃取剂，与火焰原子吸收光谱仪联用测定Ｃｕ、Ｆｅ、Ｐｂ、和Ｍｎ的灵敏度，分别提高了３５．７、３４．３、４８．７和４１．６倍，检测限分别为１．６、７．５、３．３、２．１μｇ／Ｌ．该法用于含这些重金属很低的饮用水和环境水样的测定。

FAAS with reverse flow injection analysis technology of on line extraction was used to make the determination of trace Cu,Fe,Pb and Mn in drink water and environmental water.APDC and DDTC,MIBK were used as chelating,extracting agent respectively.The sensitivity of determination increase 35.7, 34.3,48.7and 41.6 times for Cu,Fe,Pb and Mn respectively.The detection limits for Cu,Fe,Pb and Mn are 1.6, 7.5, 3.3 and 2.1μg/L respectively.The results are satisfactory.