title: [Flow injection chemiluminescent detection of acemetacin in KMnO4 - Na2 SO3 system].
abstract: OBJECTIVE
  To study the sensitizing effect of acemetacin (ACE) on the weak chemiluminescent (CL) reaction of KMnO4 with sulfite and establish a fast and convenient method for CL detection of ACE.
  
  
  METHODS
  Using the sensitizing effect of ACE on KMnO4-Na2SO3 system and flow injection technique to determine the concentration of ACE.
  
  
  RESULTS
  Under optimal conditions, the CL intensity of 1.0 x 10(-2) mol x L(-1) H3PO4 - 5.0 x 10(-5) mol x L(-1) KMnO4 - 4.0 x 10(-4) mol x L(-1) Na2SO3 was proportional to the concentration of ACE ranging from 1.0 x 10(-7) to 1.0 x 10(-5) mol x L(-1). The detection limit of ACE was 6.9 x 10(-8) mol x L(-1) at 3sigma. Satisfactory results were obtained for determination of ACE at 2.5 x 10(-6) mol x L(-1).
  
  
  CONCLUSIONS
  The present method showed good precision, high sensitivity and selectivity and could be used for fast and convenient detection of ACE. It would be of significance to the clinical and pharmacological study of acemetacin.
authors.affiliation: State Key Laboratory of Coordination Chemistry, Institute of Analytical Science, Nanjing University, Nanjing 210093, China.
authors.forename: Zhi-Jie
authors.initials: ZJ
authors.lastname: Zhang
authors.forename: Ya-Feng
authors.initials: YF
authors.lastname: Zhuang
authors.forename: Huang-Xian
authors.initials: HX
authors.lastname: Ju
mesh_terms: D017022:Flow Injection Analysis / Q000379:methods*; D007213:Indomethacin / Q000031:analogs & derivatives* / Q000032:analysis*; D008163:Luminescent Measurements / Q000379:methods*; D011196:Potassium Permanganate / Q000737:chemistry; D013447:Sulfites / Q000737:chemistry
chemical_list: D013447:Sulfites; D011196:Potassium Permanganate; C026784:acemetacin; C025026:sodium sulfite; D007213:Indomethacin