| 作业场所空气中微量呼吸性粉尘游离二氧化硅含量的X线衍射测定研究 |
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| 引用本文： | 闫跃进,陶宁,吴灿泽.作业场所空气中微量呼吸性粉尘游离二氧化硅含量的X线衍射测定研究[J].中国职业医学,2001,28(2):7-9. |
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| 作者姓名： | 闫跃进 陶宁 吴灿泽 |
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| 作者单位： | 1. 地质矿产部劳动保护科学研究所第四研究室,
2. 武汉大学医学院卫生学教研室, |
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| 基金项目： | 国家劳动部重点专项科研基金资助(编号：L-94-36) |
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| 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线衍射法对滤采集的粉尘中游离二氧化硅含量的测定是一种精确、简便和快速的方法。
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| 关 键 词： | 结晶型游离α－石英 呼吸性粉尘 X线衍射法 相对误差 二氧化硅 |
| 文章编号： | 1000-6486(2001)02-0007-03 |
| 修稿时间： | 2000年5月24日 |
Study on the determination
in micro-amounts of free SiO2 in respirable dust in the air of workplace by a
method for XRD |
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| YAN Yue-jin,Tao Ning,WU Can-ze.Study on the determination
in micro-amounts of free SiO2 in respirable dust in the air of workplace by a
method for XRD[J].China Occupational Medicine,2001,28(2):7-9. |
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| Authors: | YAN Yue-jin Tao Ning WU Can-ze |
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| Abstract: | Objective To determine the free SiO2 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 SiO2 in airborne sample collected by filter membrane. |
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