前言:研究目的是为了解推测日本人现在对锌的摄取量。这次测定锌的方法,仍按上一次调查报告的锌测定方法,对经常食用的各种食品含锌量进行了测定。方法:采取的样品,是大阪市区内出售的经常食用的各种食品。谷类有米、麦、豆类,用水仔细地洗干净后,风干备用。蔬菜类先去掉根和外皮,先用干净水洗净,然后再用蒸馏水冲洗干净备用。饮料类充分混匀后取样。罐头、瓶装食品等用组织打碎机全部混匀后取样。将以上样品,按试验需要的量,精确称取,然后,充分干燥炭化,再 Preface: The purpose of the study was to understand what the Japanese are now using for zinc. The determination of zinc method, still according to a survey report of the zinc determination method, regular consumption of various foods zinc content was determined. Method: The sample taken is a variety of foods that are regularly consumed in downtown Osaka. Cereal rice, wheat, beans, carefully washed with water, air-dried spare. First remove the roots of vegetables and skin, washed with clean water, then rinse with distilled water spare. Drink mixed samples after full mixing. Canned food, bottled food and other tissue crushers after all sampling. The above samples, according to the amount of test required, accurately weighed, and then fully dried carbonized, and then