摘要
目的拟建立电感耦合等离子原子发射光谱仪（IcP—AES）同时测定工作场所中钾、钠含量的方法。方法采用ICP—AEs同时测定工作场所空气中钾、钠的含量并与火焰原子吸收光谱法进行比较。结果该方法的线性范围为：钾0．5～5mg／L，钠0．5～5mg／L，线性方程：钾Y=231700X-8459．8，r=Q9997；钠Y=371600X-11262．4，r=0．9996。检出限：钾Q024mg／L，钠0．048mg／L。精密度实验相对标准偏差钾为z9％-3．8％，钠为42％-5．7％。加标回收率范围钾为98．7—103．3％，钠为96．7—101．6％。结论该方法准确可靠，与火焰原子吸收光谱法相比较，测定结果差异无统计学意义。
[ Objective] To establish a method for simultaneous determination of potassium and sodium contents in workplace air by induc- tively coupled plasma atomic emission spectrometry （ICP-AES）. [ Methods] The contents of potassium and sodium in workplace air were detected by ICP-AES, and the results were compared with the data of flame atomic absorption spectrometry. [ Results] The linear range of the method for potassium and sodium was 0.5-5 mg/L and 0. 5-5 mg/L respectively. The linear equations for potassium and sodium were as follows： Y=231 700X-8 459.8 {r =0.999 7）, Y=371 600X-11 262.4 （r =0.999 6}. The detected limit of potassium and sodium was 0.024 mg/L and 0.048 mg/L respectively. The relative standard deviation of potassium and sodium was 2.9% -3.8% and 4. 2%-5.7% respectively. The recovery of standard addition of potassium and sodium was 98. 7%-103. 3% and 96. 7-101. 6% respectively. [Condusion] The method is accurate and reliable, and there is no significant difference in results between ICP-AES and flame atomic ab- sorption spectrometry.
出处
《职业与健康》
CAS
2014年第8期1063-1065,共3页
Occupation and Health
