摘要
通过可以重复使用的刚玉滤筒对焦炉烟气进行了采样捕集,釆用自制的自动样品预处理装置对采集的样品进行了预处理,并对样品的预处理时间、萃取剂用量进行了研究。研究发现,当冲洗剂用量50mL、冲洗时间30min时,苯并[a]芘加标回收率均超过93%。该方法廉价、操作简单、方便省时。
Coke oven gas is sampled by cheap and reusable corundum filters.Automatic desulfurizing equipments,which have been independently made,are used in the pretreatment process of these samples.Different dosages of extraction agent and times of pretreatment are studied and compared.The result shows that overall recoveries could be more than 93%,when the dosage of extraction agent is 50 mL and time of pretreatment is 30 min.This method is cheaper,simpler to use and shorter time consuming for determining B（a）P in coke oven emission.
出处
《山西化工》
2015年第6期47-50,共4页
Shanxi Chemical Industry
基金
山西省科技攻关社会发展项目(20100311123)
