Vuong Quynh Hoa

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Determination of theanine in green tea, green tea-based beverages, and dietary supplements by high performance liquid chromatography using orthophthalaldehyd (OPA) derivation

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Vuong Quynh Hoa, Mac Thi Thanh Hoa, Nguyen Thanh Danh, Nguyen Van Khoa, Nguyen Thi Hoang Lan, Cao Cong Khanh, Nguyen Quang Hung

Pages: 654-667|Received:03 Jul 2024 |Accepted:19 Oct 2024

Study on determination of caffeine and theobromine in beverages, beverage ingredients, and pharmaceuticals by high-performance liquid chromatography with diode array detection (HPLC-DAD)

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Hoang Quoc Anh, Nguyen Duc Manh, Nguyen Linh Trang, Nguyen Thi Thao Nguyen, Dinh Hoang Anh, Nguyen Thi Duyen, Nguyen Xuan Thao, To Hong Anh, Trinh Hai Minh, Le Duc Dung, Vuong Quynh Hoa, Vu Thi Nhat Le, Nguyen Quang Huy

Pages: 551-561|Received:29 Jul 2024 |Accepted:18 Oct 2024

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