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Determination of Ascorbic Acid Using a New Oscillating Chemical System of Lactic Acid‐Acetone‐BrO 3 − ‐Mn 2+ ‐H 2 SO 4
Author(s) -
Yang ShuTao,
Lin ZhiXin,
Cai RuXiu,
Gan NanQin
Publication year - 2002
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20020201018
Subject(s) - chemistry , ascorbic acid , acetone , briggs–rauscher reaction , analyte , analytical chemistry (journal) , chemical reaction , bromate , lactic acid , inorganic chemistry , chromatography , organic chemistry , bromide , catalysis , food science , biology , bacteria , genetics
Analyte pulse perturbation (APP) technique was applied to the study of the perturbation of ascorbic add (AA) on the lactic add‐acetone‐BrO 3 − ‐Mn 2+ ‐H 2 SO4 oscillating reaction, and AA was determined using this new oscillating chemical system. Influence of experimental variables was investigated. The linear range lies between 5.0 × 10 −7 ‐5.5 × 10 −s mol/L, and the precision and throughput were quite good (2.43% as RSD, and 8–10 samples/h, respectively). This method was applied to the determination of real samples and the results were satisfactory. Some aspects of the potential mechanism of action of AA on the oscillating systems are discussed.