本文選題：腥味物質(zhì) + 醛�。� 參考：《中國給水排水》2014年18期

【摘要】：采用自動頂空固相微萃取-氣相色譜/質(zhì)譜聯(lián)用技術,建立了一種快速測定水中7種腥味醛類物質(zhì)的方法,重點針對纖維萃取頭類型、萃取方式、萃取溫度、萃取時間以及離子強度等影響因素進行了優(yōu)化。自動固相微萃取優(yōu)化后條件為:CAR/PDMS(85μm)纖維頭,Na Cl含量25%(W/V),65℃恒溫振蕩10 min,頂空萃取20 min,250℃下解吸3 min進入氣相色譜/質(zhì)譜進行分析。在優(yōu)化的前處理和分析條件下,7種物質(zhì)的回收率為86.30%~113.61%,方法檢出限為1.61~17.53 ng/L,遠低于各種物質(zhì)的嗅閾值。
[Abstract]:An automatic headspace solid-phase microextraction (SPME)-gas chromatography / mass spectrometry (GC / MS) method was developed for the rapid determination of seven kinds of aromatic aldehydes in water, focusing on the type of fiber extraction head, the extraction method and the extraction temperature.The extraction time and ionic strength were optimized.The optimized conditions of automatic solid phase microextraction (SPME) were as follows:% CAR / PDMS 85 渭 m) the content of NaCl in the head of the fiber was 25 W / V ~ (-1) and oscillated at 65 鈩，

本文編號：1731569