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比值导数波谱法测定饮料中苯甲酸刘劭钢１汤爱良２李再兴２王华洪１苯甲酸的测定常采用薄层层析－紫外光度法和气相色谱法［１］，两者操作都很繁杂；近来雷鸣等［２］提出多波长线性回归法、刘劭钢等用卡尔曼滤波法同时测定苯甲酸和糖精，简化了操作。比值导数波谱法是近...
Determination of benzoic acid in beverages by ratio derivative spectroscopy Liu Jiao Gang 1 Tang Ailiang 2 Li Zaixing 2 Wang Hua Hong 1 The determination of benzoic acid is often performed by thin-layer chromatography-UV spectrometry and gas chromatography [1] 2] put forward the multi-wavelength linear regression method, Liu Xun Steel and other using Kalman filter simultaneous determination of benzoic acid and saccharin, simplifying the operation. Ratio derivative spectrum is near ...