Sökning: "Ngoc Phuoc Dinh"

Hittade 2 avhandlingar innehållade orden Ngoc Phuoc Dinh.

  1. 1. Investigations of the retention mechanisms in hydrophilic interaction chromatography

    Författare :Ngoc Phuoc Dinh; Knut Irgum; Andrew J. Alpert; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HILIC; hydrophilic interaction chromatography; adsorption isotherm; water enriched layer; multivariate data analysis; retention mechanism; separation; analytisk kemi; Analytical Chemistry;

    Sammanfattning : Hydrophilic interaction chromatography is well known as a powerful technique separation of polar and ionizable compound nowadays. However the retention mechanism of the technique is still under debate. Understanding retention mechanism would facilitate the method development using the technique and its future improvement. LÄS MER

  3. 2. Study of retention mechanisms in Hydrophilic Interaction Chromatography by Nuclear Magnetic Resonance Spectroscopy

    Författare :Adel Shamshir; Knut Irgum; Tobias Jonsson; Ngoc Phuoc Dinh; Torgny Fornstedt; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HILIC; hydrophilic interaction chromatography; adsorption; STD-NMR; saturation transfer difference; retention mechanism; NMRD; solid state-NMR; Analytical Chemistry; analytisk kemi;

    Sammanfattning : This thesis deals with investigations of the retention mechanisms in hydrophilic interaction liquid chromatography (HILIC) using nuclear magnetic resonance spectroscopy. The aims are to understand how the different types of stationary phases can influence the retention of various solutes and the adsorption abilities of solvent on stationary phases. LÄS MER