Simple and simultaneous quantification of cyanide,ethanol, and 1-propanol in blood by headspace GC–MS/NPD with Deans switch dual detector system

Cyanide is a powerful and rapidly acting poison. In Japan, cyanide poisoning is rare, and regular cyanide testing can be costly and time consuming. In contrast, alcohol analysis is routinely performed in most forensic laboratories. In this study, we attempted to develop a method for the simultaneous quantification of cyanide and alcohols in blood using headspace gas chromatography (HS–GC). As nitrogen-phosphorus detection (NPD) is more sensitive to hydrogen cyanide than mass spectrometry (MS), a Deans switch was used to switch the detectors during a single run. The separation provided by three analytical columns, PoraBOND Q, CP-Sil 5 CB, and HP-INNOWax, was investigated, and PoraBOND Q was selected. The use of HS–GC–MS/NPD with a Deans switch enabled the simple and simultaneous quantification of cyanide, ethanol, and 1-propanol. Eighteen other volatile compounds were detected in the SIM/scan mode of the MS.     

论外商投资合同法律效力争议解决

本文所称外商投资合同法律效力争议,是一个较为宽泛的概念,它不仅包括外商在中国境内直接投资签署的中外合资/合作经营企业合同及其变更的法律效力所产生之争议,也包括外资并购合同法律效力产生之争议,还包括外商投资中企境外企业所签署的合同法律效力所产生之争议。本文意图通过对上述三种不同形式的外商投资合同法律效力所产生之争议的不同方面进行比较研究,从而找出正确的解决这些争议的方法,以供业内人士、仲裁员、律师参考。     

汽车玻璃贴膜紫外及可见光谱特性检验的物证价值

目的通过对汽车玻璃贴膜紫外、可见光谱特性的检验,研究其对汽车玻璃物证检验的辅助作用,证实其物证价值。方法应用紫外、可见分光光度计对55个品牌,不同型号汽车贴膜的光谱特性进行测试。结果 55个不同品牌、不同型号贴膜紫外截止波长、吸收峰数、紫外可见吸收曲线都是有差异的。结论贴膜可以通过测试紫外、可见光谱进行区别及比对检验,弥补玻璃检验的不足,起到辅助玻璃区别认定的目的。     

网络犯罪成因的几点思考

随着互联网逐渐进入人们的生活 ,在给人们带来巨大便利和实惠的同时 ,网络犯罪也日益突出。本文从网络犯罪的成本、网络伦理道德、计算机网络本身存在的安全漏洞三方面对网络犯罪的成因展开了分析。     

基于B／S教学管理系统的开发与研究

文章在对教学质量评价方法进行综合研究并广泛征求专家意见的基础上，利用层次分析法和数理统计法，提出了建立学生评估教师教学质量水平的指标体系，并在此基础上开发了适合高职院校特色的基于Browser／Server结构的学生网上评教系统，为实现教学管理的自动化、数字化、网络化，进行了有益的探索。     

中国沿海外商直接投资外移趋势分析

受外商投资区位优势加速变迁,国际经济环境剧烈变动,尤其是全球金融危机冲击实体经济,各国对国际直接投资(FDI)的争夺日趋激烈等因素影响,中国沿海地区劳动密集型制造业的FDI大量外移。减少FDI向国外转移,促进其向内地转移,既有利于沿海发达地区经济结构升级,又有利于推动内地经济发展和对外开放,加快中国工业化进程,增加国内就业机会。促进沿海劳动密集型制造业的FDI内移,必须正视中国二元经济结构的现实,避免工业化进程中好高骛远,选择内地区域中心,形成产业集群效应,拓展产业链条,降低外商投资内地的综合成本。     

Trading in development: norms and institutions in the making/unmaking of European Union–African,Caribbean and Pacific trade and development cooperation

This paper offers a contribution to recent debates on European Union (EU) external trade and development policy, with a specific focus on the African, Caribbean and Pacific (ACP) group of countries. The question asked is why the EU encountered such difficulties in the attempt to translate its normative preferences for freer trade and closer economic integration into a series of binding agreements? Drawing on both economic constructivist and historical institutionalist insights, it is argued that the case for reform initially rested on a strong convergence between institutions and ideas, enabling the EU to discursively present desired policy reforms as necessary to satisfy World Trade Organisation trade rules. However, in due course, the institutional dynamics behind the latter began to diverge from the EU's policy preferences and blunt its norm-based argument – thus creating the space for transnational coalitions to, first, question and, ultimately, undermine aspects the EU's trade and development prospectus for the ACP.     

印俄战略伙伴关系的新发展

印俄战略伙伴关系是冷战时期印苏特殊关系的继承和演进。进入21世纪以后,随着俄罗斯的复兴和印度的崛起,双方重新审视对方在各自战略棋盘上的分量,决定建立"战略伙伴关系",加强在政治、经济、军事、科技、能源等领域的合作。由于俄罗斯与中国的"战略协作伙伴关系"不断深化,印度与中国"面向和平与繁荣的战略伙伴关系"正在推进,印俄战略伙伴关系对于中国具有某种积极意义。尽管印俄对中国的态度有一定区别,但是印俄战略伙伴关系对中国的良性作用值得肯定。     

多路数码管显示仿真系统懿设计与实现

文章介绍了基于单点单路I／O仿真系统的多路数码显示仿真实现的分析与设计。     

2例收缴“麻果”中主要成分的检验报道

1案例简介 案例1 2005年10月，新疆乌市公安局刑侦支队缉毒民警在乌市利华酒店大厅抓获犯罪嫌疑人路某某，在其随身携带的褐色夹包内缴获“麻果”药片20粒。药片均为圆型，片剂，黄连素药片大小，呈玫瑰红、浅桔红、深桔红或苹果绿，上面印有“R”、“WY”、“66”、“888”等标记，外观与摇头丸相似。