[Background absorption and its correction in the determination of Co in steel with flame atomic absorption spectrometry].
In this paper, a study of background absorption and interference of Fe in the determination of Co with flame atomic absorption spectrometry was done. The influence of background absorption on Co 240.7 nm could be completely eliminated when Au 242.8 nm was used as a background correction line, and the results of the determination of micro-amount Co in iron and high-alloy steel with standard addition method were satisfactory. The mechanism of background absorption and interference was also discussed.
Li
J
J
University of Science and Technology Beijing, 100083 Beijing.