Sumitra T, Kongsombatsuk S
Department of Nuclear Technology, Chulalongkorn University, Bangkok, Thailand.
Biol Trace Elem Res. 1990 Jul-Dec;26-27:269-77. doi: 10.1007/BF02992681.
Feasibility of using X-ray fluorescence techniques for the determination of airborne manganese in dry-cell battery factories was investigated. Both Energy Dispersive (EDX) and Wavelength Dispersive (WDX) X-ray fluorescence techniques of analysis were used. The minimum detectable quantity of Mn by the EDX method was found to be 50 micrograms for membrane filter (AA type) and 100 micrograms for cellulose filter (pore size 2.5 microns), respectively, with a counting time of 2000 s. The most suitable exciting source was 1.11 GBq (30 mCi) Pu-238. The minimum detectable quantity of Mn by the WDX method was 10 micrograms, with a counting time of 100 s. Results of the X-ray fluorescence and the AA methods were found to be in good agreement. Field measurements were carried out in a dry-cell battery factory. Concentrations of airborne manganese in the factory were found to be 0.02-41.1 mg/m3.
研究了使用X射线荧光技术测定干电池工厂空气中锰含量的可行性。采用了能量色散（EDX）和波长色散（WDX）两种X射线荧光分析技术。通过EDX方法，对于膜过滤器（AA型），在计数时间为2000秒时，锰的最低检测量为50微克；对于纤维素过滤器（孔径2.5微米），最低检测量为100微克。最合适的激发源是1.11GBq（30mCi）的Pu - 238。通过WDX方法，在计数时间为100秒时，锰的最低检测量为10微克。发现X射线荧光法和原子吸收光谱法（AA法）的结果吻合良好。在一家干电池工厂进行了现场测量。发现该工厂空气中锰的浓度为0.02 - 41.1mg/m³。
