Cu2+-imprinted cross-linked chitosan resin as micro-column packing materials for online chemiluminescence determination of trace copper.
The Cu(2+)-imprinted cross-linked chitosan resin was synthesized and the binding characteristic of the resin to Cu(2+) was evaluated. The prepared resin was packed into a micro-glass column and used as micro-separating column. The micro-separating column was connected into the chemiluminescence flow system and placed in front of the window of the photomultiplier tube. Based on the luminol-hydrogen peroxide chemiluminescence system, a flow injection online chemiluminescence method for determination of trace copper was developed and trace Cu(2+) in complex samples was successfully determined. The proposed method improved the shortcomings of chemiluminescence method's poor selectivity.
Nie
Feng
F
Key Laboratory of Shaanxi Provincial Resource and Biology, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shannxi, People's Republic of China. hlhlhl3333@163.com
Hao
Liang
L
Gao
Mei
M
Wu
Yingchun
Y
Li
Xinsheng
X
Yu
Sha
S
D048271:Chitosan / Q000138:chemical synthesis / Q000737:chemistry*; D003188:Composite Resins / Q000138:chemical synthesis / Q000737:chemistry*; D003300:Copper / Q000032:analysis*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D017022:Flow Injection Analysis / Q000295:instrumentation; D049449:Luminescence; D008163:Luminescent Measurements / Q000295:instrumentation; D054802:Molecular Imprinting
D003188:Composite Resins; D003432:Cross-Linking Reagents; D003300:Copper; D048271:Chitosan