School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, Sichuan 610031, China.
College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, China.
Food Chem. 2023 Apr 16;406:135077. doi: 10.1016/j.foodchem.2022.135077. Epub 2022 Nov 26.
Most of the available methods for the quantification of cyclamate depend on laboratory instruments and their application in the field was limited. Herein, a simple and sensitive method was developed for the determination of cyclamate in beverage samples based on chemical vapor generation and miniature point discharge optical emission spectrometry (μPD-OES). The combination of headspace sampling and μPD-OES not only simplifies the separation process of cyclamate, improves sensitivity, and alleviates matrix interference but also eliminates the use of a bulky and expensive instrument. Under the optimal conditions, this method provided a limit of detection of 0.1 mg L comparable to or better than most reported methods. The method eventually was applied to 14 different beverages and cyclamate was found below the threshold set by Chinese Standards for Food Additives. The proposed method provides great potential for the field analysis of cyclamate in the supervision of food safety.
大多数用于甜蜜素定量的方法都依赖于实验室仪器，其在现场的应用受到限制。本文建立了一种基于化学蒸气发生和微型点放电光学发射光谱（μPD-OES）的饮料样品中甜蜜素的简单、灵敏的测定方法。顶空采样和 μPD-OES 的结合不仅简化了甜蜜素的分离过程，提高了灵敏度，减轻了基质干扰，而且还消除了使用大型昂贵仪器的需要。在最佳条件下，该方法的检测限为 0.1mg/L，与大多数报道的方法相当或更好。该方法最终应用于 14 种不同的饮料，发现其中的甜蜜素含量均低于中国食品安全添加剂标准规定的阈值。该方法为食品安全监管中甜蜜素的现场分析提供了很大的潜力。
