高卧东山 2008/09/26
ok [img]https://www.instrument.com.cn/bbs/images/affix.gif[/img][url=http://www.instrument.com.cn/bbs/download.asp?ID=110398]Indirect determination of low vapour pressures using solid-phase microextraction—application to tetrachlorobenzenes and tetrachlorobenzyltoluenes[/url]