Photochemistry used in a sentence

Photochemistry in a sentence as a noun

The photochemistry in them is triggered by UV rays.

Seems like photochemistry and colorimetry don't intersect as often as they ought to...

No problems with any allergies, and then, about 15 years ago, I worked in a store with photochemistry, but no ventilation.

Lindzen is known for his work in the dynamics of the middle atmosphere, atmospheric tides and ozone photochemistry.

For photochemistry I rely heavily on using known developer / film concentrations and being borderline religious when it comes to temperature and time.