序号: 1 题目：Rapid determination of vitamin B12 (cobalamin) based on silver nanoclusters capped by polyethyleneimine with different molecular weights and terminal groups 作者：Fei Qu,*ab Qianwei Songab and Jinmao You*abc 期刊：Analytical Methods 链接：http://pubs.rsc.org/en/content/articlelanding/2016/ay/c6ay00088f#!divAbstract
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