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为了解香烟中镉、铅对吸烟者本人和“被动吸烟者”的危害及环境污染程度,我们用AAS法对我市销量较大的部分香烟和“吸入烟雾”中镉、铅的含量进行了测定。 香烟中镉、铅含量测定:取香烟二支于瓷坩埚内,以1+3H_2SO_4浸润后炭化、灰化。以1+1HNO_33ml,H_2O_21ml溶解并蒸至近干,然后以5％HNO_3溶解并定容于10ml,用AAS法测其吸光值,与标准比较定量。“吸入烟雾”中镉、铅含量测定:取小玻氏吸收管,加入5ml％HNO_3,将
In order to understand the harm of cadmium and lead in cigarettes to smokers and “passive smokers” and the degree of environmental pollution, we used AAS method to test the content of cadmium and lead in “smokes” Determination. Determination of cadmium and lead in cigarettes: two cigarettes were taken in a porcelain crucible, infiltrated with 1 + 3H_2SO_4, and carbonized and ashed. To 1 + 1HNO_33ml, H_2O_21ml dissolved and evaporated to near dryness, then dissolved in 5% HNO_3 and set the volume in 10ml, measured by AAS Absorbance, compared with the standard quantitative. “Inhalation smoke” in the determination of cadmium, lead content: take small glass absorption tube, add 5ml% HNO_3, will