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Table 2 Retention time of the three active principles and their fragments coming from the photodegradation (see Figures1, 2 and 3)

From: Photostability and toxicity of finasteride, diclofenac and naproxen under simulating sunlight exposure: evaluation of the toxicity trend and of the packaging photoprotection

Active principle Peak Retention time
Finasteride 1 5′ 25″
Diclofenac 1 6′ 30″
Diclofenac fragment 2 4′ 20″
Diclofenac fragment 3 5′ 55″
Naproxen 1 4′ 25″
Naproxen fragment 2 5′ 30″
Naproxen fragment 3 2′ 50″
Naproxen fragment 4 3′ 20″
Naproxen fragment 5 3′ 45″
Naproxen fragment 6 4′ 15″
Naproxen fragment 7 4′ 35″