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该文研究了盐酸脱氧土霉素中微量金属元素铁的火焰原子吸收分光光度法的测定.方法简便、省时,具有良好的精密度和准确度.其相对标准偏差为0.54％,平均回收率为99.2％.“,”This paper reports the development of the determination of trace metal Fe in doxycycline hydrochloric acid by flame atomic absorption spectrophotometry.The method is convenient to determine elements in doxycycline hydrochloric acid.The results show that the method offers good precision and accuracy.The relative standard deviation for Fe was 0?54%and the rate of recovery was 99?2%.??