摘要
石油及其产品中的微量元素在工业和环境应用中提供了非常重要的信息，电感耦合等离子质谱（ICP-MS）具有高灵敏度、快速、多元素分析等特点因而受到越来越多人的关注。石油产品种类多、基体复杂，物理化学性质差异巨大，如何消除或者抑制各种样品带来的干扰，是ICP-MS分析石油产品的关键。主要的办法是通过池技术消除光谱干扰，通过预处理、乳液和有机溶剂稀释的方法消除基体效应，同时通过对进样系统的改进，可以进一步改善分析性能，降低检出限。随着联用技术的发展，通过与色谱的联用，ICP-MS还可以进行元素的形态分析，这极大的拓展了应用领域，也是一个新的挑战。
Trace elements in petroleum products can give very important information in industrial and environmental applications. Inductively coupled plasma mass spectrometry （ICP-MS） is highly appropriate to perform this kind of analyses because of its great sensitivity, speediness and multielement analysis ability. Petroleum products are heterogeneous mixture with complex matrix and different chemistry/physical property, so how to overcome the interferences is the key of ICP -MS analysis method. The cell technique is used to overcome spectroscopic interferences and none-spectroscopic interferences are eliminated by pretreatment, emulsion or dilution. The improvement of sample introduction system can optimize performance. The hyphenated technique of chromatography with ICP-MS can analyze element speciation in petroleum products. It extends application field of ICP-MS and brings a new challenge to us
出处
《现代科学仪器》
2016年第4期12-19,共8页
Modern Scientific Instruments
关键词
电感耦合等离子质谱
微量元素
石油
联用技术
inductively coupled plasma mass spectrometry
trace elements
petroleum
hyphenated technique
