title: [Influential factors for determination of free silicon dioxide in dusts and improvement].
authors.forename: De-jie
authors.initials: DJ
authors.lastname: Li
authors.forename: Yu-hua
authors.initials: YH
authors.lastname: Ning
authors.forename: Yun
authors.initials: Y
authors.lastname: Tan
mesh_terms: D004391:Dust / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods; D012822:Silicon Dioxide / Q000032:analysis*
chemical_list: D004391:Dust; D012822:Silicon Dioxide