The test results show that it is technically feasible to separate silver from crude bismuth by vacuum distillation instead of traditional Parke's process of desilverization(zinc desilverization).
试验结果表明，采用真空蒸馏法脱除粗铋中银代替传统的加锌除银法，在技术上是可行的。
Objective: To provide the basis for the establishment of microbial limit test for colloidal bismuth pectin.
目的：为建立胶体果胶铋微生物限度检查法提供依据。
Objective: To provide the basis for the establishment of microbial limit test for colloidal bismuth pectin.
目的：为建立胶体果胶铋微生物限度检查法提供依据。
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