title: [Influence of illuminance on the photo-reaction rate order of nitrofurazone solution].
abstract: OBJECTIVE
  To explore the relationship between the illuminance and the observed order of reaction of photodegradation of nitrofurazone solution.
  
  
  METHODS
  Studying the observed order of reaction of photodegradation of nitrofurazone solution exposed to light with three illuminance values at three concentration values respectively.
  
  
  RESULTS
  The observed order of reaction of photodegradation increased with the decrease of concentration when the illuminance kept constant and, on the other hand, the observed order increased with the increase of illuminance when the concentration kept constant.
  
  
  CONCLUSIONS
  The observed order of reaction of photodegradation of nitrofurazone solution depends on both the concentration of the drug and the illuminance of the incident light.
authors.affiliation: Department of Physical Chemical, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Lin
authors.forename: Xian-cheng
authors.initials: XC
authors.lastname: Zhan
authors.forename: Li
authors.initials: L
authors.lastname: Tu
authors.forename: Ning
authors.initials: N
authors.lastname: He
authors.forename: Cheng-rong
authors.initials: CR
authors.lastname: Li
authors.forename: Lin-li
authors.initials: LL
authors.lastname: Li
mesh_terms: D004355:Drug Stability; D008029:Lighting; D009583:Nitrofurazone / Q000737:chemistry*; D010777:Photochemistry; D012996:Solutions
chemical_list: D012996:Solutions; D009583:Nitrofurazone