在线样品前处理液相色谱-质谱联用技术为体液中痕量小分子化合物提供了高灵敏度、高选择性和高通量的分析方法。该文以在线固相萃取柱为主线,总结了不同种类富集柱的特点及其近5年来在相关领域的应用,并简要介绍了在线液相色谱-质谱分析的流路系统
On-line liquid chromatography-mass spectrometry (LC-MS) is a highly sensitive, highly selective and high throughput method for the analysis of small molecules in biofluids. The developments, characterizations and applications of pre-column, on-line LC-MS method and its configuration in the recent five years are reviewed.