Environmental tobacco smoke - estimation of its contribution to respirable suspended particles - determination of particulate matter by ultraviolet absorbance and by fluorescence 环境烟草烟雾.对可呼吸悬浮颗粒产生影响的评价.紫外线吸收和荧光法测定颗粒物质
Environmental tobacco smoke - estimation of its contribution to respirable suspended particles - determination of particulate matter by ultraviolet absorbance and by fluorescence 环境烟草烟雾.烟雾对呼吸悬浮颗粒影响的评估.通过荧光和紫外线吸收对颗粒物质的测定
The indirect optical gaps of ce02 - tioa complex films induce the absorption edges wavelengths red shift so that the films have excellent properties of ultraviolet absorbing 由于混合薄膜间接跃迁的能隙较小，导致了吸收边向红外区迁移，使薄膜有很好的紫外线吸收功能。
When the organic uv ray absorbers in their anionic forms were intercalated into the layers of the zn2al - ldhs , their uv absorption ability increased further , and their oxidation catalytic activity for the air oxidation of castor oil greatly decreased 当有机紫外线吸收剂以它们的阴离子形式嵌入到zn _ 2al - ldh层状化合物的层间后，它们的紫外线吸收能力明显增强，而氧化催化活性明显降低。
