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在人体各组织中,尤其在骨胳、肌肉、肝、心、脾和肾中均发现有锡存在。有人认为锡可能是人体的必需元素。在一些罐头食品中锡的浓度(10～1000ppm)较高。据报导罐头中锡的含量大约达20ppm时就可使某些食品颜色变暗。罐头在贮藏期间,锡从罐壁溶出的多少与食品的成份,如硝酸盐、氧和氨基酸、特别是胱氨酸和半胱氨酸的量有关,此时食品中锡的含量可以超过许多国家规定的允许标准(250ppm)。Cheftel等报导大鼠经口氯化亚锡LD_(50)为700mg/kg。本文作者研究了各种
Tin is found in various tissues of the body, especially in the bones, muscles, liver, heart, spleen and kidney. Some people think that tin may be an essential element of the body. Tin concentrations in some canned foods (10-1000ppm) are high. The tin content of cans is reported to darken some foods at levels of up to about 20 ppm. The amount of tin that is eluted from the tank wall during canning depends on the amount of food ingredients such as nitrate, oxygen and amino acids, particularly cystine and cysteine, in which case the amount of tin in the food can exceed that of many countries The specified allowable standard (250ppm). Cheftel and other reports of oral stannous chloride LD_ (50) of 700mg / kg. The author of this article has studied various