Apparatus allowing sequential chemical reactions

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample

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422 8201, 42218604, 422101, 436 89, 436180, 204450, 204451, 204452, G01N 2730, G01N 27447

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active

058536680

ABSTRACT:
A first reactant is immobilized i.e. in a porous matrix (50), adjacent a sample electrode (46) within a reaction chamber. Energizing of the electrode (46) electrophoretically attracts a mobile second reactant and/or electrolytically induces appropriate reaction conditions to enhance reaction of the first and second reactants. Polarity reversals between the sample electrode (46) and remote electrodes (38), (42), (44) cause unreacted second reactant and/or by-products to migrate away from the immobilized first reactant. The techniques are useful for sequential chemical reactions such as sequencing or construction of proteins, polysaccharides and nucleic acids where cyclical additions and removals of reactants are required. The techniques are amenable to automated micro and nano scale construction and operation and allow direct electrophoretic (38) interfacing with chromatographic, HPCE and mass spectrophotometric equipment.

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