title: Chemiluminescence determination of folic acid by a flow injection analysis assembly.
abstract: 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 2.5×10(-5)-3.1×10(-7) mol/L with a detection limit of 2.3×10(-8) mol/L (S/N=3). The relative standard deviation of 1.0×10(-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.
authors: Advanced Materials Research Chair, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. tarabai22@yahoo.com.sg
authors: Saikh Mohammad
authors: SM
authors: Wabaidur
authors: Seikh Mafiz
authors: SM
authors: Alam
authors: Sang Hak
authors: SH
authors: Lee
authors: Zeid Abdullah
authors: ZA
authors: Alothman
authors: Gaber E
authors: GE
authors: Eldesoky
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D002563:Cerium / Q000737:chemistry*; D004867:Equipment Design; D017022:Flow Injection Analysis / Q000295:instrumentation*; D005492:Folic Acid / Q000032:analysis*; D057230:Limit of Detection; D049449:Luminescence; D008163:Luminescent Measurements / Q000295:instrumentation*; D009942:Organometallic Compounds / Q000737:chemistry*; D004364:Pharmaceutical Preparations / Q000737:chemistry
chemical_list: D009942:Organometallic Compounds; D004364:Pharmaceutical Preparations; C058901:tris(2,2'-bipyridine)ruthenium III; D002563:Cerium; D015082:2,2'-Dipyridyl; D005492:Folic Acid