常见阔叶木木屑浸提物的紫外光谱分析

利用紫外光谱法和一阶导数光谱法对不同树种及同种树不同产地的阔叶木木屑的浸提分进行了分析。结果表明．不同树种、同树种不同产地阔叶木木屑浸提物的紫外光谱图中。吸收峰的峰数、峰形有一定的差异：一阶导数光谱图中。正、负峰的峰数、峰位、峰形及振幅值的比值差异显著．据此可对阔叶木木屑进行种类的鉴别。     

吸毒者毛发中苯环己哌啶的串联质谱分析

应用串联质谱方法分析吸毒者毛发中苯环己哌啶(phencyclidine,PCP)国内尚未见报道。在整个分析过程中,不需要用溶剂将PCP从毛发中提取出来。从PCP吸毒者毛发中只检测到PCP,没有检测出其代谢产物。被动吸收试验发现毛发可从水溶液中紧密吸收PCP,这类似于身体对PCP的结合。检测结果表明:PCP可被非吸毒者的毛发吸收,且较为稳定。     

Characterization of Digital Cameras for Reflected Ultraviolet Photography; Implications for Qualitative and Quantitative Image Analysis During Forensic Examination

Reflected ultraviolet imaging techniques allow for the visualization of evidence normally outside the human visible spectrum. Specialized digital cameras possessing extended sensitivity can be used for recording reflected ultraviolet radiation. Currently, there is a lack of standardized methods for ultraviolet image recording and processing using digital cameras, potentially limiting the implementation and interpretation. A methodology is presented for processing ultraviolet images based on linear responses and the sensitivity of the respective color channels. The methodology is applied to a FujiS3 UVIR camera, and a modified Nikon D70s camera, to reconstruct their respective spectral sensitivity curves between 320 and 400 nm. This method results in images with low noise and high contrast, suitable for qualitative and/or quantitative analysis. The application of this methodology is demonstrated in the recording of latent fingerprints.     

合成大麻素类新精神活性物质AB-CHMINACA的体内与体外代谢研究

目的 通过UPLC-HRMS检测分析体外人肝微粒体模型中合成大麻素类新精神活性物质AB-CHMINACA的代谢物并与一例真实滥用者的尿液样本进行对比,从而对体外人肝微粒体模型预测体内代谢物的一致性进行评价研究.方法 通过建立体外人肝微粒体孵育模型模拟人体体内代谢过程,尿液样本经简单的乙腈沉淀蛋白后利用高分辨质谱(HRM...     

UV中LogA-λ谱图法与A-λ谱图法的比较及应用

本文通过logA-λ谱图法与A-γ谱图法的比较,介绍了logA-γ谱图法在刑事毒物分析中具有测试浓度范围宽,灵敏度高,定性比对直观,定量精确、方便等优点.并经临案实践证明,值得同行借鉴.     

Insane Arsonists: An Early 21st Century Sample

We studied all individuals (n = 41) who had been found not guilty by reason of insanity for arson and who were committed to a California state psychiatric hospital on October 1, 2016 in a cross‐sectional analysis. This group of insane arsonists contained 33 (80.5%) males and eight (19.5%) females with a mean age at the time of the index arson of 35.9 years. At least 87.8% (n = 36) were considered to not have been participating in psychiatric treatment at the time of the index arson. Five (12.2%) of the insane arsonists had previously been found not guilty by reason of insanity for arson or had been convicted of having committed arson. Our findings suggest that lack of participation in psychiatric treatment was the most important factor in contributing to the index arson and the most important problem to be addressed in subsequent psychiatric treatment plans.     

Treatment effectiveness for offenders with autism spectrum conditions: a systematic review

Theoretical suppositions suggest a potential vulnerability in some individuals with autism spectrum conditions (ASCs) to displaying offending behaviours. Additionally, it is recognised that the features of ASCs may result in possible barriers to treatment. A systematic review was undertaken to identify empirical evidence examining the effectiveness of treatment programmes for offenders with ASCs and to explore the potential impact of ASC symptoms on treatment outcomes. The studies identified consisted of a small number of case series and a collection of case reports with little or no direct comparisons to offenders without ASCs. A synthesis of the findings highlighted variability in treatment approach and impact. Effectiveness was primarily defined by reduction in further offending behaviours and was found to be variable across the data. The potential relationship between the symptoms of ASCs and treatment outcome was explored with all case reports identifying the need for adaptations to treatment programmes, necessitated by the symptoms of ASCs. This systematic review joins an existing body of literature emphasising need for more controlled research into the effectiveness of offending behaviour treatment programmes for individuals with ASCs, and for further investigation into the impact of the clinical features of ASCs on treatment outcomes.     

41种抗生素LC/MS联合测定的谱图库建立

目的建立常见41种抗生素LC/MS联合测定谱图库。方法采用ZORBAX sb-aq,2.1mm×150mm×3.5μm（带预柱）;柱温：30℃;流动相：甲酸（0.1%）甲醇和甲酸（0.1%）水溶液梯度条件;流速：0.4mL/min;通过电喷雾电离（ESI）,自动三级质谱检测。结果应用液质联用仪通用检测方法,得到了含有41种常见抗生素的自用质谱谱库和保留时间参数谱图库。通过谱图解卷积和保留时间锁定软件方法实现数据自动处理。结论该方法具有不易漏检和减少假阳性的优点,完全可替代手工检索质谱,可用于实际案件检验。     

论签名笔迹的频谱分析方法

通过一种签名笔迹的频谱分析方法,并提取签名笔迹的压力、速度等动态特征数据,利用傅立叶变换原理,对特征数据进行频谱分析。实验研究发现,同一人的签名笔迹频谱图相似度高,且明显区别于他人的签名笔迹。签名笔迹的频谱分析方法可以直观、有效的鉴别签名笔迹。     

红外差谱技术用于微量混合油漆的比对检验

对交通事故中的漆片检材进行同一物质比对时,某些情况下难以提取到单一的油漆碎片而是两辆车的油漆混合在一起,给物证比对带来困难。红外差谱技术具有辨别混合物中不同成分的功能,因此可应用于交通事故中混合油漆检材的比对检验。本文对一起交通事故的漆片检材,分别用三种方式提取、制样,用红外光谱仪进行分析,借助红外差谱技术对谱图进行处理,排除混合油漆的干扰。处理后得到的谱图与样本的谱图进行比对,结果显示两者主要官能团吸收峰位置、峰型、峰强度基本一致,可出具比对一致的结论。针对混合油漆检材的比对检验,红外差谱技术可提供支持。