摘要
原子荧光光谱法(AFS)因其高灵敏度、低检出限和良好的选择性在化妆品成分分析中具有广泛应用。然而,现有AFS方法在应用于复杂化妆品基质时存在前处理繁琐、干扰因素多等问题。以原子荧光光度计为实验平台,系统优化了样品前处理的流程以及仪器参数的设置,提升了抗干扰能力。通过控制变量试验设计优化了消解温度、时间和酸度等关键参数,建立了适用于化妆品中砷、汞等重金属元素的高效检测方法。优化后方法将样品前处理时间缩短40%,砷、汞检出限分别降至0.012μg/L、0.008μg/L,相对标准偏差控制在3.5%以内。方法已成功应用于20种不同类型化妆品的重金属含量分析,为化妆品安全评价提供了可靠的分析方法。
Atomic fluorescence spectrometry(AFS)has been widely used in the analysis of cosmetic components due to its high sensitivity,low detection limit and good selectivity.However,the existing AFS method has problems such as cumbersome pretreatment and many interference factors when applied to complex cosmetic matrices.Using atomic fluorescence spectrophotometer as the experimental platform,this study systematically optimized sample pretreatment,instrument parameter settings,and anti-interference capabilities.Key parameters such as digestion temperature,time and acidity were optimized through variable controlled experimental design,and an efficient detection method for heavy metal elements such as arsenic and mercury in cosmetics was established.The optimized method shortened the sample pretreatment time by 40%,and the detection limits of arsenic and mercury were reduced to 0.012μg/L and 0.008μg/L,respectively,and the relative standard deviation was controlled within 3.5%.The method has been successfully applied to the analysis of heavy metal content in 20 different types of cosmetics,providing a reliable analytical method for cosmetic safety evaluation.
作者
郑伟鑫
黄奕贤
林杨盛
彭思
沈映旋
Zheng Weixin;Huang Yixian;Lin Yangsheng;Peng Si;Shen Yingxuan(Guangdong North Industrial and Commercial Institutes of Green Skincare Co.,Ltd.,Shantou 515144,China;Guangdong Yalijie Fine Chemical Co.,Ltd.,Shantou 515144,China)
出处
《广东化工》
2025年第19期151-152,159,共3页
Guangdong Chemical Industry
关键词
原子荧光光谱法
化妆品
重金属分析
atomic fluorescence spectrometry
cosmetics
heavy metal analysis
