摘要
研究用ICP-AES法同时测定工业用精对苯二甲酸中铬、钴、铁、锰、钼、镍、钛等金属元素。通过实验确定了入射功率、冷却气流量、辅助气流量、雾化压力等实验条件。该方法的检出限为0.0013～0.0148mg/L,测定结果的相对标准偏差为0.16%～0.30%(n=11),加标回收率为90.6%～96.2%。该方法对试样的测定结果与原子吸收分光光度法及二安替比林甲烷分光光度法的检测结果基本一致。
ICP - AES was applied to the determination of chromium, cobalt, iron, manganese, molybdenum, nickel and titanium simultaneously in purified terephthalic acid. The experiment conditions such as applied power, cooling gas flow -rate, assistant gas flow - rate and atomizing pressure were confirmed. Limits of detection for these elements were in the rang of 0. 0013 - 0.014 8 mg/ L. The relative standard deviation was 0.16% - 0.30% （ n = 11 ）. The standard addition recoveries were in the range of 90.6% - 96.2%. The sample results detected by ICP - AES were consistent with those detected by atomic absorption spectrometry and diantipyrylmethane spectrometry.
出处
《化学分析计量》
CAS
2008年第1期32-34,共3页
Chemical Analysis And Meterage
