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Explain how photodiode array(PDA)-based single beam UV-Vis spectrophotometer works(illustrate your explanation by drawing a schematic diagram)...

Explain how photodiode array(PDA)-based single beam UV-Vis spectrophotometer works(illustrate your explanation by drawing a schematic diagram)

What is the main advantage of the PDA-based (reverse optics) single beam instruments compared to the conventional single beam ones?

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