文献类型：期刊文献

英文题名：SERS determination of sodium saccharin content on the tipping paper of cigarettes using AgNP substrates prepared with a USB-power supply device

作者：Deng, Huipeng[1];Talpur, Zakir H.[1];Wang, Kaijun[1];Kang, Yan[1];Du, Yiping[1];Xu, Dongmei[2];Fan, Xinglong[2];Li, Wei[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]China Tobacco Jiangsu Ind Co Ltd, Nanjing 210019, Peoples R China

年份：2023

卷号：15

期号：35

起止页码：4524

外文期刊名：ANALYTICAL METHODS

收录：;EI(收录号：20233714716312);WOS:【SCI-EXPANDED(收录号:WOS:001681506300001)】；

语种：英文

外文关键词：Paper - Raman scattering - Silver - Sodium - Sugar substitutes - Sugars - Surface scattering - Tobacco

摘要：A novel magnetic agitating heater powered by a USB port has been developed and applied to synthesize silver colloid substrate for surface-enhanced Raman scattering (SERS) detection of sodium saccharin content on the tipping paper of cigarettes. The heater device allows the convenient synthesis of the Ag colloid, and the reaction can be completed on-site in 15 min under mild conditions. The on-site synthesis of SERS substrate effectively avoided the need for storage and concerns regarding the poor stability and short lifespan of colloid substrates. The results demonstrated that the substrate obtained with the device could achieve SERS detection of Rhodamine 6G (R6G) at as low as 10-9 mol L-1 while maintaining a stable intensity with a relative standard deviation (RSD) of 5.52% (n = 5). Using the prepared substrate at the optimal conditions, the limit of detection of sodium saccharin (SS) was 1 mg L-1. By introducing an internal standard KSCN, a linear relationship was observed between the relative intensity at 708 cm-1 and the concentration of the SS in a range of 20-100 mg L-1 (R2 = 0.98). With the developed method, SS was directly extracted from the cigarette paper by immersing it in water, and the extracted solution was subsequently detected. The quantitative spike-recoveries were in the range of 95.5-116.7%, with RSD between 2.3-12.6%. The whole detection procedure including the on-site substrate preparation, took only about 30 min. This work opens new avenues for colloidal synthesis, and the detection method of SS on the cigarette paper also holds great promise in food safety applications.