[题目]Determination of D/L-amino acids by zero needle voltage electrospray ionisation [期刊]Rapid Communications in Mass Spectrometry [卷号]Volume 22, Issue 4, Date: 30 February 2008, Pages: 455-461 [作者]Morten B. Sørensen, Per Aaslo, Helge Egsgaard, Torben Lund 链接:http://www3.interscience.wiley.com/search/allsearch?mode=quicksearch&WISindexid1=WISall&WISsearch1=zero+needle 请好心人帮忙,本人将感激不尽!