分析测试学报2025，Vol.44Issue(5)：804-810,7.DOI:10.12452/j.fxcsxb.240913397
基于激光直接红外光谱表征尿液样本中的微塑料
Identification of Microplastics in Urine by Laser Direct Infrared Spectroscopy
摘要
Abstract
Agilent 8700 laser direct infrared spectroscopy was used to investigate microplastics in urine from school-aged children and adults in this study.An analytical method for detecting micro-plastics in human urine was established,and detailed data on the types,quantities,and particle size distribution of microplastics in two age groups were obtained.The results revealed the detection of 304 particles in the urine of 21 school-aged children,primarily consisting of high-density polyeth-ylene,polyvinyl chloride,polyamide,and polyethylene.In contrast,42 particles were detected in the urine of 6 adults,predominantly comprising polyvinyl chloride,polyamide,polyethylene,and polypropylene.Notably,microplastics with small particle sizes(20-70 μm)constituted a high pro-portion in both sample groups,accounting for 92.0%and 95.2%,respectively.Comparative analy-sis indicated the widespread presence of microplastics in urine,with distinct differences in quantity and chemical composition between the two groups,which may be related to the children's behavior habits,respiratory and metabolic characteristics,and living environment.This research furnishes crucial insights into the exposure of microplastics within the human body,aiding in the assessment of microplastic risks faced by individuals across different age groups.关键词
微塑料/激光直接红外光谱/尿液/学龄儿童/成人Key words
microplastics/laser direct infrared spectroscopy/urine/school-age children/adult分类
化学引用本文复制引用
吴磊,张鑫童,刘紫嫣,张畑幸,朱倩婉,李启玉,郄雪娇,杜姗姗..基于激光直接红外光谱表征尿液样本中的微塑料[J].分析测试学报,2025,44(5):804-810,7.基金项目
安徽省教育厅高校科学研究项目重点项目(2023AH050605) （2023AH050605）
