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由于金属制品食具及烹调用具中广泛使用铝作为原料,所以,作者就铝的溶出条件、反复溶出及表面状态对溶出量的影响进行了探讨。并对各种浓度的食盐、构椽酸及醋酸混合液中Al的溶出量进行了测定;就食盐及有机酸的溶出量的变化进行了研究。方法:样品选用铝制的普林杯,因为普林杯个体间的差异小。预先在室温下用4%醋酸溶液浸渍78小时。用蒸馏水、1%与4%的醋酸溶液及1%枸椽酸溶液作为试验溶液。食盐浓度的配制:采用烹调时常用的1%、
Since aluminum is widely used as a raw material in metal utensils and cooking utensils, the author discussed the influence of aluminum elution conditions, repeated dissolution and surface conditions on the amount of elution. The elution amount of Al in various concentrations of salt, rafic acid and acetic acid mixture was measured. The changes of the elution amount of salt and organic acid were studied. Methods: The sample made of aluminum prince cup, because of the small difference between the individual prince Cup. Pre-soaked with 4% acetic acid solution at room temperature for 78 hours. With distilled water, 1% and 4% acetic acid solution and 1% citric acid solution as the test solution. Preparation of salt concentration: cooking commonly used 1%