【摘要】 研究了用冷原子荧光法测定石油裂解气相产物中痕量砷的方法。将裂解气依次通过KOH和AgNO₃溶液进行吸收,然后使吸收液合并或分别处理,并发生AsH₃,再用标准汞溶液吸收。用冷原子荧光法测量吸收前后标准汞的荧光读数差,即可间接求出气相产物中的有机胂和无机砷。方法灵敏度较高,可以比较满意地测定裂解气相产物C₂或C₃中的痕量砷。更多还原

【Abstract】 The gaseous products from petroleum cracking were successively absorbed in KOH and AgNO₃ solutions, which were then treated seperately to generate AsH₃; this in turn was absorbed in portions of standard mercury solution. The differece in fluorescence of the standard mercury solution before and after the adsorption measttred by the cold atomie fluorescence method would indicate indirectly the inorganic and organic arsenic contents in the gaseous products.更多还原