建立了离子色谱检测人血中草甘膦的方法。血液样品使用乙腈沉淀蛋白质,离心后取上清液过Dionex On-GuardⅡRP柱和Dio nex OnGuardⅡAg柱后,经Io nPac AS-19阴离子色谱柱(25 m m×4 m m)分离,用KOH淋洗液自动发生器(EG)进行梯度淋洗...建立了离子色谱检测人血中草甘膦的方法。血液样品使用乙腈沉淀蛋白质,离心后取上清液过Dionex On-GuardⅡRP柱和Dio nex OnGuardⅡAg柱后,经Io nPac AS-19阴离子色谱柱(25 m m×4 m m)分离,用KOH淋洗液自动发生器(EG)进行梯度淋洗,抑制器采用外加水模式,电导检测器检测。结果表明,草甘膦在10～100m g/L范围内线性关系良好(相关系数r2=0.999 9)。以信噪比(S/N)为3确定方法检出限为0.12 m g/L,以S/N=10确定方法定量限为0.39 m g/L;方法回收率为95.2%～109.1%,相对标准偏差(n=5)为1.2%～3.7%,检测实发案件中死者心血中草甘膦质量浓度为508 mg/L。该方法操作简便,结果准确,适用于血中草甘膦的定量检测,能快速为案件的侦破提供可靠的线索和依据,可满足公安工作的需要。展开更多
As a classic English movie in gothic style,English subtitles of Corpse Bride are of unique characteristics,featured with the beauty of rhyme,rhythm and rhetoric.The profound meaning of subtitles is very impressive.Thi...As a classic English movie in gothic style,English subtitles of Corpse Bride are of unique characteristics,featured with the beauty of rhyme,rhythm and rhetoric.The profound meaning of subtitles is very impressive.This study focuses on English rhetoric,analyzing figures of speech displayed in the subtitles from the perspectives of phonetics,syntax,semantics and logic.The analysis will help readers to better appreciate the charm and rhetorical effects of English subtitles in this movie.展开更多
The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculia...The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculiar seperated scenes formed after the explosion, limit time of preverving and inspecting the scene, greatly comprehensive profession of inspection of the scene, etc.. Studies on the ways to know the main problem of inspection, follow basic principles, handle beforehead, collect remaining substances and exemin casualties, can direct the inspection in practice and is very important to the development of the theory of railway police.展开更多
文摘建立了离子色谱检测人血中草甘膦的方法。血液样品使用乙腈沉淀蛋白质,离心后取上清液过Dionex On-GuardⅡRP柱和Dio nex OnGuardⅡAg柱后,经Io nPac AS-19阴离子色谱柱(25 m m×4 m m)分离,用KOH淋洗液自动发生器(EG)进行梯度淋洗,抑制器采用外加水模式,电导检测器检测。结果表明,草甘膦在10～100m g/L范围内线性关系良好(相关系数r2=0.999 9)。以信噪比(S/N)为3确定方法检出限为0.12 m g/L,以S/N=10确定方法定量限为0.39 m g/L;方法回收率为95.2%～109.1%,相对标准偏差(n=5)为1.2%～3.7%,检测实发案件中死者心血中草甘膦质量浓度为508 mg/L。该方法操作简便,结果准确,适用于血中草甘膦的定量检测,能快速为案件的侦破提供可靠的线索和依据,可满足公安工作的需要。
文摘As a classic English movie in gothic style,English subtitles of Corpse Bride are of unique characteristics,featured with the beauty of rhyme,rhythm and rhetoric.The profound meaning of subtitles is very impressive.This study focuses on English rhetoric,analyzing figures of speech displayed in the subtitles from the perspectives of phonetics,syntax,semantics and logic.The analysis will help readers to better appreciate the charm and rhetorical effects of English subtitles in this movie.
文摘The scene of explosion in a passenger train is the objective material base of the reflection of the wxplosion process. It has such characterisitics as complex casualties, particular place and circumstance, two peculiar seperated scenes formed after the explosion, limit time of preverving and inspecting the scene, greatly comprehensive profession of inspection of the scene, etc.. Studies on the ways to know the main problem of inspection, follow basic principles, handle beforehead, collect remaining substances and exemin casualties, can direct the inspection in practice and is very important to the development of the theory of railway police.
