Search results for: Ewa Bartosińska
article
Biomedical Chromatography > 32 > 12 > n/a - n/a
Tocopherols and tocotrienols have been extensively studied owing to their anticancer potential, especially against breast cancer. Therefore, the aim of this study was to quantitatively determine tocochromanols in human breast adipose tissue with the use of HPLC–FLD. The sample preparation procedure included homogenization and solvent extraction with isopropanol–ethanol–0.1% formic acid mixture prior...
article
Rapid Communications in Mass Spectrometry > 32 > 11 > 919 - 927
Rationale
Tocopherols and tocotrienols are chemical compounds insusceptible to the ionization process under atmospheric pressure conditions. Therefore, the selection of the optimal ion source settings for their quantification requires special attention. The aim of this study was to analyse the influence of the APCI source parameters on the response of tocochromanols and two related compounds.
Methods...
article
Biomedical Chromatography > 32 > 2 > n/a - n/a
Trigonelline is a pyridine alkaloid found in fenugreek seeds and coffee beans. Most of the previous studies are concerned with the quantification of trigonelline along with other constituents in coffee herbs or beverages. Only a few have focused on its determination in animal or human tissues by applying different modes of HPLC with UV or MS detection. The aim of the study was to develop and validate...
article
For the last decade, significant attention has been paid to the potential role of tocotrienols in prevention and therapy of breast cancer. Therefore, the aim of this study was to develop and validate analytical method for quantitative determination of tocotrienols (α-, β-, γ- and δ-tocotrienol) in human breast adipose tissue with the use of high performance liquid chromatography coupled with APCI-MS/MS...
