DYNAMIC SEPARATION OF MOBILE SPECIES TRANSFER PROCESSES AT POLYMER-MODIFIED ELECTRODES USING THE ELECTROCHEMICAL QUARTZ-CRYSTAL MICROBALANCE

被引:24
作者
HILLMAN, AR
HUGHES, NA
BRUCKENSTEIN, S
机构
[1] MERCK SHARP & DOHME LTD,CRAMLINGTON NE23 9JU,NORTHD,ENGLAND
[2] SUNY BUFFALO,DEPT CHEM,BUFFALO,NY 14214
关键词
MODIFIED ELECTRODE; REDOX POLYMER; MOBILE SPECIES TRANSFER; ELECTROCHEMICAL QUARTZ CRYSTAL MICROBALANCE;
D O I
10.1039/an9941900167
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Galvanostatically controlled electrochemical quartz crystal microbalance measurements on poly(vinylferrocene) modified electrodes demonstrate temporal separation of mobile species transfers. This approach mag provide selectivity in analytical applications involving target species preconcentration in a surface-immobilized him. Dynamic separation of ion, salt and neutral molecule (e.g., solvent) transfer processes is optimized via the applied current. Mechanistic issues relating to mobile species transfers and polymer relaxation processes are rationalized in terms of a generalized multi-dimensional version of the scheme-of-squares.
引用
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页码:167 / 173
页数:7
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