火锅底料中固体石蜡的定性检测方法研究

Qualitative Determination Methods of Paraffin in Bottom Material of Chafing Dish

根据石蜡与食用油脂(主要是牛羊油)性质的差异,采用了各种定性检测方法对火锅底料中的石蜡定性检测进行了一系列研究。研究表明:采用物理化学手段,如薄层色谱法、皂化法、溶剂溶解法、利用DSC测定其熔点范围以及硬度曲线的测定对火锅底料中提取出来的油样均可以进行定性分析,确定其中有无含有石蜡。其中综合实施难度及仪器投资,以皂化法用于定性检测最为简便、快捷,可以在实际的市场监管中加以运用。

According to the different properties of edible oil and paraffin, a series of researches on the paraffin in bottom material of chafing dish were carried out by various qualitative analysis methods. The result shows that the paraffin in bottom material of chafing dish can be detected through TLC, saponification, solvent, DSC, and hardness graph. According to the factors such as application difficulty, equipment investment, etc. ,saponification is the most efficient and effective method for qualitative analysis of paraffin in bottom material, and is worth recommended to departments of market supervision.