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全面地回顾了国内外红外光谱法测定粉尘中游离二氧化硅的研究成果。系统而重点地介绍了溴化钾压片法、粉尘滤膜样品重沉积和采样滤膜直接测定技术，分析了样品粒度、标准石英物质和矿物干扰物对测定结果的影响及干扰消除方法；还介绍了国外对红外光谱法与Ｘ－射线衍射法进行比较性研究的结果和动态，并得出结论。文章所列参考文献对本领域研究人员和基层检测人员具有很高的参考价值。
A comprehensive review of the research results of infrared spectroscopy at home and abroad for the determination of free silica in dust is presented. System and focused on the potassium bromide tablet method, the dust filter membrane sample sedimentation heavy sedimentation and direct measurement of membrane technology, analysis of the sample size, the standard quartz material and mineral interference on the measurement results and interference elimination method; The results and dynamics of comparative studies on infrared spectroscopy and X-ray diffraction abroad are introduced and the conclusions are drawn. The references listed in this article have high reference value for researchers and grass-roots inspectors in this field.