期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 105, 期 -, 页码 412-417出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2012.11.078
关键词
Flow injection analysis; Chemiluminescence; Folic acid; Ce(IV); Pharmaceuticals
类别
资金
- King Saud University [RGP-VPP-130]
A flow injection (FI) method is reported for the determination of folic acid by chemiluminescence method. This method is based on the reaction of folic acid with Ru(bipy)(3)(2+) and Ce(IV) to produce chemiluminescence. The calibration curve was linear over the range of 2.5 x 10(-5)-3.1 x 10(-7) mol/L with a detection limit of 2.3 x 10(-8) mol/L (S/N = 3). The relative standard deviation of 1.0 x 10(-6) mol/L folic acid was found 3.5% (n = 11). The influences of potential interfering substances were studied. The recovery was higher than 95.3%. The method was accurate, sensitive, and effective for assay of folic acid. This CL method was successfully applied to the determination of folic acid in pharmaceutical preparations. The mechanism of CL reaction was also studied. (C) 2012 Elsevier B.V. All rights reserved.
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