Meepho S A , Kamdee K , Saengkorakot C , et al. Comparison between isotope ratio mass spectrometry (IRMS) and cavity ring-down spectroscopy (CRDS) for analysing the carbon isotope ratio and detection of adulteration in coconut water[J]. International Journal of Food Science & Technology, 2021.
方法概述
采用元素分析儀+同位素比值質(zhì)譜(EA-IRMS,Thermo Delta V Plus)和燃燒模塊+光腔衰蕩光譜(Picarro CM-CRDS)研究了不同椰子水樣品的碳同位素比值(δ13C)。分析了來自泰國12個省新鮮椰子的天然椰子水,和摻有三種不同濃度甜味劑(蔗糖、葡萄糖和果糖)的摻假椰子水,并對八種品牌的商業(yè)椰汁飲料進行了分析。