Lopez F F, Cabrera C, Lorenzo M L, Lopez M C
Department of Nutrition and Bromatology, University of Granada, School of Pharmacy, Spain.
Sci Total Environ. 1998 Sep 4;220(1):1-9. doi: 10.1016/s0048-9697(98)00214-9.
A reliable and rapid method is presented for the determination of Al by graphite furnace atomic absorption spectrometry (GFAAS) in wine, beer and other alcoholic beverages. The temperature-time program for the graphite furnace was optimized. Samples were digested with nitric acid and vanadium pentoxide. The results obtained were validated against microwave acid sample digestion. The analytical detection limit was 4.0 pg. The mean recovery of 98.2% and the relative standard deviation of 5.2% were obtained. The method was applied to determine Al in 70 different samples of alcoholic beverages widely consumed in Spain. The mean values ranged from 94.8 to 1682.6 micrograms/l in wine, from 36.5 to 795.2 micrograms/l in beer, and from 15.7 to 739.6 micrograms/l in other alcoholic beverages (cider, brandy, rum, whisky, gin, anisette and liquor). The influence of packaging and containers on Al contamination of alcoholic beverages and their contribution to Al dietary intake were estimated.
本文介绍了一种可靠、快速的方法，用于通过石墨炉原子吸收光谱法（GFAAS）测定葡萄酒、啤酒及其他酒精饮料中的铝。对石墨炉的温度-时间程序进行了优化。样品用硝酸和五氧化二钒消化。所得结果与微波酸消解样品法进行了验证。分析检测限为4.0皮克。平均回收率为98.2%，相对标准偏差为5.2%。该方法用于测定西班牙广泛消费的70种不同酒精饮料样品中的铝。葡萄酒中的平均值范围为94.8至1682.6微克/升，啤酒中的平均值范围为36.5至795.2微克/升，其他酒精饮料（苹果酒、白兰地、朗姆酒、威士忌、杜松子酒、茴芹酒和利口酒）中的平均值范围为15.7至739.6微克/升。评估了包装和容器对酒精饮料铝污染的影响及其对铝膳食摄入量的贡献。
