Supplementary Information files for "Transforming presumptive forensic testing: In-situ identification and age estimation of human bodily fluids"

These are the SI files for the article "Transforming presumptive forensic testing: In-situ identification and age estimation of human bodily fluids".Abstract:The ability to achieve rapid, in situ identification and age estimation of human bodily fluids can provide valuable information during the investigation of a crime. A novel direct analysis method now permits the rapid in situ identification and age estimation of human bodily fluids for forensic analysis at crime scenes. A thermal desorption surface sampling probe was developed and coupled with a compact mass spectrometer for the direct analysis of volatile organic compound (VOC) profiles of human bodily fluids within two months and in different environmental conditions, without the need for prior sample preparation. The method is not only capable of identifying bodily fluids and discriminating against common interferent species, but also differentiating between bodily fluid stains of different ages over a time period of two months. This demonstrates the potential for rapid in situ identification and age estimation of bodily fluids without the need for contaminative presumptive tests or time-consuming sample preparation.

本数据集包含论文《转换假设法法医学检验：现场人体生物流体即时识别与年龄评估》的SI文件。摘要：实现人体生物流体快速、原位识别与年龄评估的能力，能够在犯罪调查过程中提供宝贵信息。一种新型的直接分析方法现已允许在犯罪现场对人类生物流体进行快速原位识别与年龄评估，以进行法医学分析。一种热脱附表面采样探头被开发出来，并与紧凑型质谱仪耦合，以在两个月内以及不同环境下直接分析人体生物流体的挥发性有机化合物（VOC）谱，无需预先样本制备。该方法不仅能够识别生物流体并区分常见干扰物种，还能在两个月的时间内区分不同年龄的生物流体痕迹。这证明了无需污染性假设检验或耗时样本制备即可实现生物流体快速原位识别与年龄评估的潜力。