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一、前言电磁法分离的锡同位素,常用石墨口袋收集。含有锡同位素的石墨,经高温灼烧使石墨灰化,锡同位素灼烧为二氧化锡。在同位素分离和收集回收过程中二氧化锡受到同质异位素和其它杂质元素的沾污,需要进一步精制纯化。天然锡共有十个同位素,各自的丰度差别极大,天然锡经电磁分离后,获得不同数量的各种同位素(20—200 mg),由于产品的产量小,成本高,在选择精制方法时应该考虑
First, the foreword Electromagnetic separation of tin isotopes, commonly used graphite pocket collection. Graphite containing tin isotopes, after burning at high temperature graphite ash, tin isotopes burning tin dioxide. During the process of isotope separation and collection and recovery, stannic oxide is contaminated by isopotential elements and other impurity elements and needs further purification and purification. Natural tin total of ten isotopes, their abundances vary greatly, natural tin by electromagnetic separation, access to a variety of different isotopes (20-200 mg), due to the product of small, high cost, in the choice of refining methods Should be considered