Díaz J P, Navarro M, López H, López M C
Department of Nutritional and Bromatology, Faculty of Pharmacy, University of Granada, Spain.
Food Addit Contam. 1997 Feb-Mar;14(2):109-14. doi: 10.1080/02652039709374505.
The selenium concentrations in different dairy products and drinks in the Mediterranean coastal area of southeastern Spain have been determined by hydride generation atomic absorption spectrometry. Mineralization was carried out with an HNO3-HClO4 mixture (4:1) in a thermostatted sand bath. Selenium determination was carried out by the standard addition method. Mean concentrations obtained in diary products varied from 6.87 ng/g (rice pudding) to 178.90 ng/g (caramel custard), and those in drinks from 0.256 micrograms/l (wine) to 2.879 micrograms/l (pineapple juice). Repeatability, expressed as relative standard deviation, ranged from 5.06% to 13.25%. The results obtained from the recovery studies were proximate to 100%. Considering the mean daily individual consumption of these foods in Andalusia (southern Spain), the daily dietary intake of selenium supplied by this source is 5.869 micrograms per person per day.
采用氢化物发生原子吸收光谱法测定了西班牙东南部地中海沿岸地区不同乳制品和饮料中的硒含量。在恒温砂浴中用硝酸-高氯酸混合液（4:1）进行消解。采用标准加入法测定硒含量。乳制品中测得的平均含量在6.87纳克/克（大米布丁）至178.90纳克/克（焦糖蛋奶冻）之间，饮料中的平均含量在0.256微克/升（葡萄酒）至2.879微克/升（菠萝汁）之间。以相对标准偏差表示的重复性在5.06%至13.25%之间。回收研究获得的结果接近100%。考虑到安达卢西亚（西班牙南部）这些食物的人均每日消费量，该来源提供的硒的每日膳食摄入量为每人每天5.869微克。
