Trung Quang Pham, Lan Anh Thi Nguyen, Nhung Thi Dao and Thao Thi Ta 2024. Determination of phosphorus additives in instant noodle samples by Phosphorus-31 nuclear magnetic resonance (³¹P-NMR). Vietnam Journal of Science, Technology and Engineering. 66, 3 (Sep. 2024), 39-45. DOI:https://doi.org/10.31276/VJSTE.2023.0072.