Question
Why are different wavelengths used for red and blue dye in a spectrophotometer?
Also..does a spectrophotometer measure concentration or absorbance?
Also..does a spectrophotometer measure concentration or absorbance?
Answers
bobpursley
They can measure reflectance or absorbance.
http://en.wikipedia.org/wiki/Spectrophotometer
http://en.wikipedia.org/wiki/Spectrophotometer