激光解吸电离质谱新型液相基质研究  

Studies on the New Liquid Matrix for Laser Desorption/ Ionization Mass Spectrometry

作　　者：熊少祥[1] 陈文章[1] 蒲丹[1] 辛斌[1] 王光辉[1] 

机构地区：[1]中国科学院化学研究所分子科学中心北京质谱中心,北京100080

出　　处：《高等学校化学学报》2002年第10期1868-1872,共5页Chemical Journal of Chinese Universities

基　　金：国家科学技术部专项经费资助;国家自然科学基金(批准号 :2 9975 0 3 1;2 0 0 3 5 0 10 )资助

摘　　要：选用包括纳米粒子在内的多种基质化合物 ,构成了多种不同组成的液相基质 .以多肽、蛋白、大环寡糖和有机小分子等数种类型化合物为样品 ,系统地考察了不同液相基质在基质辅助激光解吸电离飞行时间质谱 (MALDI-TOF)分析中的应用情况 ,探讨了与固体制样方法的异同点 .实验结果表明 ,有些液相基质对多类化合物具有较好的通用性 。Several liquid matrixes with different compositions were formed by using some matrice compounds including nanoparticles, and their applications in matrix assisted laser desorption/ionization time of flight mass spectrometry were systematically investigated with several kinds of compounds such as peptide, protein, macrocycle oligosaccharide, small organic molecules as the testing samples. The similarities and differences between solid and liquid method of sample preparation were explored. It is shown from the experimental results that some liquid matrixes possessed a good versatility and the others are especially efficient to the analysis of particular compounds.

关 键 词：基质辅助激光解吸电离飞行时间质谱 液相基质 样品制备 纳米粒子 

分 类 号：O657.63[理学—分析化学]