2DGCTOF Human Skin Scent Samples Dataset

The dataset contains 971 human scent samples obtained by the instrumentation of two-dimensional gas chromatography coupled with a Time-of-Flight mass spectrometer.<br> 45 female (Codes F1-F45) and 40 male (Codes M1-M40) volunteers participated in a sample collection procedure. Each volunteer provided a sample at least ten times. Due to the maintenance of the machine, the dataset is further divided into 3 subgroups: System_1 (415 samples), System_2 (280 samples), and System_3 (276 samples).<br> Each sample was processed in ChromaToF(version 4.72.0.0) by LECO Corp. The processing step was executed at the signal-to-noise (SN) ratio levels 100, 300, and 500. In addition, the samples were also processed manually (504 samples, volunteers F1-F20 and M1-M20), in which 70 selected compounds in human scent chromatograms were monitored.<br> Preprocessed samples were exported and stored in text files (.txt) with a tabulator as a separator.<br> In addition, questionnaires were collected for each sample, in which the volunteers answered questions about sex, race, age, hair and eye color, height, weight, health status, menstrual cycle, medications, physical and mental status, etc.本数据集收录971份人类气味样本，所有样本均通过二维气相色谱-飞行时间质谱联用仪（two-dimensional gas chromatography coupled with Time-of-Flight mass spectrometer）采集获得。<br>共有85名志愿者参与样本采集工作，其中女性45名（编号F1-F45）、男性40名（编号M1-M40），每名志愿者至少提供10份样本。受仪器维护工作影响，本数据集被划分为3个子集：System_1（415份样本）、System_2（280份样本）及System_3（276份样本）。<br>所有样本均由LECO公司的ChromaToF软件（版本4.72.0.0）完成处理，处理过程分别设置了信噪比（signal-to-noise ratio，SN）为100、300及500三个参数档位。此外，另有504份样本（对应志愿者F1-F20及M1-M20）采用人工处理方式，该流程下对人类气味色谱图中的70种目标化合物进行监测。<br>预处理后的样本将导出并存储为以制表符为分隔符的文本文件（.txt）。<br>此外，针对每份样本均收集了配套问卷，志愿者需填写性别、种族、年龄、头发及眼睛颜色、身高、体重、健康状况、月经周期、用药情况、身心状态等相关信息。