A novel method for cyanide quantification in human whole blood using ion chromatography with amperometric detection and its application to cyanide intoxication cases

Cyanide is a highly toxic agent that has been frequently used for suicide in South Korea. It is also used in various industrial fields, such as metal plating, in which many accidental cyanide intoxications have occurred. To overcome the disadvantages of conventional cyanide analysis methods, a simple and fast method for the analysis of cyanide in whole blood using ion chromatography (IC) with amperometric detection was developed in this study. Whole blood samples were deproteinized, diluted, and analyzed using an IC–amperometric detection system. The limits of detection and quantitation were 0.1 and 0.2 mg/L, respectively. The method showed good linearity in the range of 0.2 to 50 mg/L with R² > 0.99. The intra- and inter-assay precision and accuracy values were <10%. The established method was successfully applied to analyze whole blood samples from three cyanide intoxication cases.     

主流范式的危机:法律经济学理论的反思与重整

主流法律经济学对法律问题进行分析、评价和预测,其基本内容是以经济合理性或理性选择的方法来评价法律权利的不同分配所带来的一致性和效率,其所涉及的经济学理论基础主要是新古典主义微观经济学的基本范畴和有关原理,包括“普通法的效率假说”及其中所包含的“看不见的手”原理。主流法律经济学存在的最主要的缺陷是缺乏对政治过程中的权力、意识形态等因素的政治经济学分析,忽视了政治过程在公共政策制定和法律决策中的重要影响。为了弥补上述缺陷,应当建构一种“法律经济学的现实主义范式”。     

普通高校体育舞蹈课的调查与分析

作者在文中以体育舞蹈班的学生为研究对象，重点研究了大学生学习体育舞蹈的动机、思想状态及对师资和教学方面的要求。     

刑事技术在缉毒中的应用

在毒品案件的缉查中 ,我们一方面要注意通过侦查渠道获取直接证据 ,另一方面我们一定要重视运用刑事技术手段 ,收集同案件有关的各类物证、书证、视听资料、鉴定结论等其他间接证据 ,并使之相互印证 ,共同构成一个完整的证据体系 ,切实做到案件实事清楚 ,证据确凿充分 ,为毒品查缉工作发挥刑事技术的作用     

中毒死者体内毒鼠强的GC/MS-SIM分析

一 1 9岁男子赌气吞服一白色粉末 ,1 0min后口鼻流血、抽搐 ,迅速送医院 ,经催吐、透析等方法治疗 5天后死亡。根据中毒症状和经验怀疑为毒鼠强中毒。用GC/NPD检验肝中毒鼠强有干扰。改用GC/MS -SIM法分析 ,心血、肝和胃组织中全部检出毒鼠强 ,浓度分别为 0 5 1 μg .mL- 1、0 4 5 μg .g- 1和 0 33μg .g- 1,和文献结果在同一水平。GC/MS -SIM对复杂检材中低含量毒鼠强测定具有更高的选择性 ,也具有较高的灵敏度 ,同时进一步证实毒鼠强排泄较慢 ,经过较长时间后在体内分布比较均匀     

近代中国的反倾销问题及其当代启示

近代以来,面对洋货在中国的泛滥,有识之士提出了振兴民族经济、进行商战的应对之策,民间抵制洋货的群众性运动此起彼伏,振兴国货与实业救国逐渐成为国人共识,民国政府通过经济立法以抵制外货倾销,但未能取得实质性成效。近代中国反倾销的历史说明,国家的独立统一是解决反倾销问题的根本前提,提高国货产品的竞争力是解决反倾销问题的根本途径。     

印文、手印与复印墨痕形成顺序的实验研究

通过实验与检案相结合,提出了解决复印套印法变造文书所涉及的变造事实的确定、复印变造内容与印泥、印油印文、手印形成的先后顺序等问题的方法.     

Hierarchical Cluster Analysis of Ignitable Liquids Based on the Total Ion Spectrum

Gas chromatography–mass spectrometry (GC–MS) data of ignitable liquids in the Ignitable Liquids Reference Collection (ILRC) database were processed to obtain 445 total ion spectra (TIS), that is, average mass spectra across the chromatographic profile. Hierarchical cluster analysis, an unsupervised learning technique, was applied to find features useful for classification of ignitable liquids. A combination of the correlation distance and average linkage was utilized for grouping ignitable liquids with similar chemical composition. This study evaluated whether hierarchical cluster analysis of the TIS would cluster together ignitable liquids of the same ASTM class assignment, as designated in the ILRC database. The ignitable liquids clustered based on their chemical composition, and the ignitable liquids within each cluster were predominantly from one ASTM E1618‐11 class. These results reinforce use of the TIS as a tool to aid in forensic fire debris analysis.     

Feigning Hand Preference? A Case Report Preliminary Data

Hand preference may be crucial in the forensic domain, notably in cases where the assailant is known to be left‐handed and the defendant claims to be right‐handed (or vice versa). In such cases, forensic psychologists or physicians may be asked to test the hand preference of the defendant. However, hand preference may be faked. The case described here illustrates this problem and addresses potential solutions. We also present preliminary data showing that a standard instrument for measuring handedness is sensitive to feigning. We conclude that when hand preference is determined, multiple sources of information should be assessed in order to identify possible feigning.