Dòng Nội dung
1
Application of machine learning models for green and simultaneous determination of asiaticoside and madecassoside in Centella asiatica / Ta Thi Thao, Nguyen Dieu Linh, Nguyen Thi Ha..[va nhung nguoi khac] // Tạp chí Khoa học và Công nghệ - Đại học Nguyễn Tất Thành . - 2023. - tr. 2-8. - ISSN: 2615-9015



Ký hiệu phân loại (DDC): 370.11
Present study, ANN has been used for simultaneous determination of asiaticoside and madecassoside in Centella asiatica collected from various provinces in Viet Nam based on UV spectra of standard reference and spiked samples. The absorption spectra of 108 C.
Số bản sách: (0) Tài liệu số: (1)
2
Determination of Auramine O in animal feedstuffs using ultra performance liquid chromatography tandem mass spectrometry / Nguyen Thi Ha, Nguyen Bich Nu, Le Phuong Thao, Tran Thi Hong, Nguyen Kieu Hung // Journal of Science and Technology - NTTU . - 2019. - p. 53-58. - ISSN: 2615-9015

Ho Chi Minh city : Nguyen Tat Thanh University, 2019
6 p.
Ký hiệu phân loại (DDC): 664.02
A method based on ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UPLC/MS/MS) was developed for simple and rapid determination of the residues of Auramine O in animal feedstuffs. The samples were extracted by MeOH: H2O + HCOOH 0.1% and then analyzed in multiple reaction monitoring (MRM) mode. The mobile phase was ultrapure water with 0.1% formic acid. Under the optimized detection conditions, the linear range for Auramine O was 20 - 100µg/L and the linear correlation coefficients found more than 0.99. The limit of quantification of Auramine O was 0.34 mg/kg. The recoveries of Auramine O ranged from 64.71 - 94.12% with relative standard deviations (RSD) of 4.93 - 8.31% with the concentration range of 20 - 100 µg/L. This method is simple, effective, sensitive and is suitable for the determination and confirmation of Auramine O in animal feedstuffs
 Số bản sách: (0) Tài liệu số: (1)