所屬欄目:有機(jī)質(zhì)譜
1.掃描時(shí)間譜圖的質(zhì)量與一個(gè)質(zhì)荷比所占的時(shí)間有關(guān)。當(dāng)其存留時(shí)間增加,則譜圖的質(zhì)量就得到改善。對(duì)四極桿儀器來(lái)說(shuō),存留時(shí)間t為掃描時(shí)間與掃描質(zhì)量范圍的比值,如掃描時(shí)間為1s,質(zhì)量范圍從50~500u,則t為2.2ms。對(duì)磁質(zhì)譜儀器來(lái)說(shuō) ......(本文共 687 字 ) [閱讀本文] >>