Function
of Spectrophotometer Parts
Reaction cuvet:
continued
Types of cuvet compositions:
Glass – 320 – 950 nm
range
Quartz – below 320 nm
and in 320 – 950 nm range as well
Round – acceptable for
some applications
Shape of cuvet:
Square – gives more
accuracy
Detector:
Measures the amount of light
absorbed by the reactants or transmitted through the reaction cuvet.
Types of detectors:
Photovoltaic (Barrier
layer) cells
Photomultiplier tubes