This study aims to determine carotenoids in pomelo leaves (Citrus grandis Osbeck). a rich source of nutrients and phytochemicals. by high-performance liquid chromatography-mass spectrometry and prepare carotenoid nanoemulsions for the study of its inhibitory mechanism on melanoma cells A375. Fourteen carotenoids were separated within 27 min by using a YMC-C30 column and a gradient mob... https://allfixelectricales.shop/product-category/glass-cleaning-adaptor/