Poehlein S K, Dormady S J, McMillin D R, Regnier F E
H.C. Brown Laboratory of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
Rapid Commun Mass Spectrom. 1999;13(14):1349-53. doi: 10.1002/(SICI)1097-0231(19990730)13:14<1349::AID-RCM634>3.0.CO;2-Y.
Very little work has been done on exploring the transition metals as suitable cationizing agents for the analysis of polymers by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF). This paper reports on the characterization of polystyrenes and polyethylene glycols with select metallocenes as cationizing agents. It was found that ferrocene, nickelocene and cobaltocene did indeed cationize the polymer and that, at higher molecular weights, very little if any metal clusters were observed. It was also found that the signal intensity was improved for the higher molecular weight polymers.
在探索过渡金属作为通过基质辅助激光解吸/电离飞行时间（MALDI-TOF）分析聚合物的合适阳离子化剂方面，所做的工作非常少。本文报道了以选定的茂金属作为阳离子化剂对聚苯乙烯和聚乙二醇进行的表征。发现二茂铁、二茂镍和二茂钴确实能使聚合物阳离子化，并且在较高分子量时，几乎没有观察到金属簇（如果有的话）。还发现较高分子量聚合物的信号强度有所提高。
