迅速分析Organochlorine杀虫剂一种新的毛细柱固定性

2009-05-26 14:23 下载量：77

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见附件 13691497252 侯先生 Decachlorobiphenyl elutes off of the “XLB” phase in 11.5 minutes, while the target compounds listed in EPA Method 8080 are 80% resolved on both columns. Optimization of the expanded list of compounds found in EPA Method 8081A resulted in 80% resolution of the 32 target compounds (plus the surrogates) on the Rtx-440, with the exception of kepone and endrin aldehyde. The Rtx-XLB phase under the same conditions has two poorly resolved pairs: endrin/2,4’-DDT & endosulfan II & kepone. The clear advantage of this column pair is the rapid analysis and low bleed without a sacrifice in resolution. These columns have the same elution order for the EPA 8080 pesticides, which is a disadvantage of this application. Although there are elution order differences for the expanded list and the retention times are different for all of the chlorinated pesticides there is still a need to find a more dissimilar stationary phase as a confirmation column

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深圳市高比科技有限公司

铜牌会员 | 第8年

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