罐头食品中锡的快速测定极其重要。因为:(1)常用罐头食品中的锡估计罐盒内表面的腐蚀程度。由于罐头食品中内容物的侵蚀或焊锡涂布不牢而使罐内有溶锡现象。锡系重金属,有中等毒性,有机锡化合物有更高毒性;(2)罐头食品中的锡量随温度和贮藏时间而变化;(3)食品标准规定了锡的最大允许含 Rapid determination of tin in canned foods is extremely important. Because: (1) tin commonly used in canned food to estimate the extent of corrosion of the inner surface of the tank. Tin cans dissolve due to erosion of the contents of the canned food or poor solder coating. Tin heavy metals, with moderate toxicity, organotin compounds have higher toxicity; (2) the amount of tin in canned foods with temperature and storage time; (3) the food standard specifies the maximum allowable tin content