摘要
目的 测定微量 (0 1～ 5mg)呼吸性粉尘中游离二氧化硅的含量。方法 采用X线衍射法。结果 相对误差小于 10 % ,达到常规微量呼吸性粉尘样品的分析精确度。结论 X线衍射法对滤膜采集的粉尘中游离二氧化硅含量的测定是一种精确。
Objective To determine the free SiO 2 in micro amounts (0.1～5 mg) of respirable dust. Methods A method for X ray diffraction was carried out. Results The relative errors were below 10%. The accuracy of the proposed method was able to meet the requirement of routine micro amounts. Conclusion X ray diffraction might be an accurate, convenient and speed up method to measure free SiO 2 in airborne sample collected by filter membrane.
出处
《中国职业医学》
CAS
北大核心
2001年第2期7-9,共3页
China Occupational Medicine
基金
国家劳动部重点专项科研基金资助!(编号 :L 94 36)
