Search Results - "Kohno, Iho"
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Simple and Rapid UV Spectrophotometry of Caffeine in Tea Coupled with Sample Pre-treatment Using a Cartridge Column Filled with Polyvinylpolypyrrolidone (PVPP)
Published in Chemical & pharmaceutical bulletin (01-02-2008)“…We have applied a sample pre-treatment method with a cartridge column filled with polyvinylpolypyrrolidone (PVPP) to the effective removal of polyphenols and…”
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Journal Article -
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Improved Sample Pre-treatment for Determination of Caffeine in Tea Using a Cartridge Filled with Polyvinylpolypyrroridone (PVPP)
Published in Chemical & pharmaceutical bulletin (01-09-2007)“…We have improved sample pre-treatment for the effective removal of polyphenols and simple analysis of caffeine in tea using a cartridge filled with…”
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Journal Article -
3
Simple and Rapid UV Spectrophotometry of Caffeine in Tea Coupled with Sample Pre-treatment Using a Cartridge Column Filled with Polyvinylpolypyrrolidone (PVPP)
Published in Chemical & Pharmaceutical Bulletin (2008)“…We have applied a sample pre-treatment method with a cartridge column filled with polyvinylpolypyrrolidone (PVPP) to the effective removal of polyphenols and…”
Get full text
Journal Article -
4
Improved Sample Pre-treatment for Determination of Caffeine in Tea Using a Cartridge Filled with Polyvinylpolypyrroridone (PVPP)
Published in Chemical & Pharmaceutical Bulletin (2007)“…We have improved sample pre-treatment for the effective removal of polyphenols and simple analysis of caffeine in tea using a cartridge filled with…”
Get full text
Journal Article -
5
Design of a Practical Fluorescent Probe for Superoxide Based on Protection-Deprotection Chemistry of Fluoresceins with Benzenesulfonyl Protecting Groups
Published in Chemistry : a European journal (01-01-2007)“…A strategy for designing probes based on protection–deprotection chemistry involving fluoresceins and their benzenesulfonyl (BES) derivatives has led to the…”
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A Design of Fluorescent Probes for Superoxide Based on a Nonredox Mechanism
Published in Journal of the American Chemical Society (12-01-2005)“…Fluorometric detection of O2 -• is performed based on desulfonylation of 3 to the corresponding fluoresceins 4 through nucleophilic substitution, and this…”
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7
Quasi-flow injection analysis for rapid determination of caffeine in tea using the sample pre-treatment method with a cartridge column filled with polyvinylpolypyrrolidone
Published in Journal of Chromatography A (04-01-2008)“…The sample pre-treatment method using a polyvinylpolypyrrolidone (PVPP) cartridge column combined with a quasi-flow injection analysis (quasi-FIA) system…”
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