照度对呋喃西林水溶液的表观光反应级数的影响

Influence of Illuminance on the Photo-reaction Rate Order of Nitrofurazone Solution

目的 研究呋喃西林水溶液光解反应的表观反应级数和光照度的关系。方法 配制三种不同质量浓度的呋喃西林水溶液 ,分别考查其在三种光照度下的降解反应级数。结果 呋喃西林水溶液的光反应级数随质量浓度的减小而增大 ,随光照度的增大而增大。结论 呋喃西林水溶液在光作用下的表观反应级数与药物的初质量浓度和入射光的照度有关。

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. Conclusion 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.