【摘要】 利用表面增强拉曼光谱（surface enhanced Raman spectroscopy,SERS）技术,考查了反应温度、激光照射时间、测定体系pH及与纳米银的体积比对香豆素拉曼信号的影响。结合L₉（3⁴）正交设计实验,建立了其含量检测的分析方法,该方法在0. 1～100 mg/L的浓度范围内具有较好的线性关系,其相关系数R²为0. 9953,检出限为0. 117 mg/L。将该方法用于散粉、唇膏、口红等实际样的检测,在5 mg/L、10 mg/L两个添加水平下,所得加标回收率为84%～105%,相对标准偏差为1. 85%～7. 23%。为化妆品中痕量化学性危害物的快速检测提供了一种新的思路。更多还原

【Abstract】 The effects of reaction temperature,laser irradiation time,p H of the measurement system and the volume ratio of coumarin to silver nanoparticles on the coumarin Raman signal were investigated by surface enhanced Raman spectroscopy（ SERS）. Combined with L₉（3⁴） orthogonal test,coumarin content was detected. The method had good linearity in the concentration range of 0. 1 ～ 100 mg/L,and its linear correlation coefficient R² was 0. 9953,and the detection limit was 0. 117 mg/L. The established method was applied to the loose powder,lipstick and lipstick actual sample detection. Under the two addition levels of 5 mg/L and 10 mg/L,the recoveries were between 84% and 105%,and the relative standard deviation（ RSD） was 1. 85% ～ 7. 23%. It provided a new idea for the rapid detection of trace chemical hazards in cosmetics.更多还原