Similarly, although it is general practice to use a spectrophotometer to determine the absorbance, it should be possible to use a simpler and cheaper colorimeter with the filter chosen to give the maximum absorbance with DPPH solutions.
Similarly, although it is general practice touse a spectrophotometer to determine the absorbance, it should be possible to use a simpler andcheaper colorimeter with the filter chosen to givethe maximum absorbance with DPPH solutions.