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ANALYSIS ON TRACE SULFIDE IN LIQUID GAS
Author(s): 
Pages: 23-27
Year: Issue:  1
Journal: Qilu Petrochemical Technology

Keyword:  液化气硫化物微量原子发射;
Abstract: 通过色谱操作条件参数优化,选择适合液化气分析的色谱分离柱和进样方式,减小系统对硫化物的吸附作用.采用GC-AED、GC-MS技术,建立液化气中微量硫化物形态分布的分析方法.硫化物在质量浓度为0.5 ~70ng/μL,其响应值与质量浓度呈良好的线性关系,线性相关系数0.998;单个硫化物(以硫元素计)的最低检测限为0.5g/μL,相对标准偏差小于12%.方法操作简便、灵敏度高,适用于液化气中微量硫化物形态测定.
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