Rapid determination of vitamin B12 (cobalamin) based on silver nanoclusters capped by polyethyleneimine with different molecular weights and terminal groups

Fei Qu; Qianwei Song; Jinmao You

doi:10.1039/C6AY00088F

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Rapid determination of vitamin B₁₂ (cobalamin) based on silver nanoclusters capped by polyethyleneimine with different molecular weights and terminal groups†

Fei Qu,*^ab Qianwei Song^ab and Jinmao You*^abc

Author affiliations

* Corresponding authors

^a The Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu 273165, Shandong, China
E-mail: qufei3323@163.com, jmyou6304@163.com

^b Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu 273165, Shandong, China

^c Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China

Abstract

Fluorescence of Ag nanoclusters templated by hyperbranched polyethyleneimine with different molecular weights and terminal groups could be quenched by vitamin B₁₂ (cobalamin) on the basis of the inner filter effect mechanism.

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Article information

DOI: https://doi.org/10.1039/C6AY00088F
Article type: Communication
Submitted: 11 Jan 2016
Accepted: 10 May 2016
First published: 11 May 2016

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Anal. Methods, 2016,8, 4324-4327

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Rapid determination of vitamin B₁₂ (cobalamin) based on silver nanoclusters capped by polyethyleneimine with different molecular weights and terminal groups

F. Qu, Q. Song and J. You, Anal. Methods, 2016, 8, 4324 DOI: 10.1039/C6AY00088F

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Analytical Methods