Dietrich A M, Christman R F, Durell G S
Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill 27514.
Biomed Environ Mass Spectrom. 1988 Apr 15;15(8):453-8. doi: 10.1002/bms.1200150807.
Chlorinated and oxygenated cyclohexene derivatives detected in methylene chloride extracts of chlorinated drinking water were demonstrated to be artifacts produced during sample preparation. Commercial methylene chloride contains cyclohexene as a preservative, and this reacted during the extraction/concentration process to produce microgram amounts of chlorocyclohexene, 2-chlorocyclohexanol, trans-1,2-dichlorocyclohexane, cyclohexenone and cyclohexenol. Quantitative analysis indicated that over 90% of the initial cyclohexene was consumed during the process. Dechlorination of drinking water with sodium arsenite significantly reduced but did not eliminate cyclohexene artifact formation.
在氯化饮用水的二氯甲烷提取物中检测到的氯化和氧化环己烯衍生物被证明是样品制备过程中产生的假象。市售二氯甲烷含有环己烯作为防腐剂，其在萃取/浓缩过程中发生反应，生成微克量的氯环己烯、2-氯环己醇、反式-1,2-二氯环己烷、环己烯酮和环己烯醇。定量分析表明，在此过程中超过90%的初始环己烯被消耗。用亚砷酸钠对饮用水进行脱氯处理可显著减少但不能消除环己烯假象的形成。
