An efficient ultrasound‐assisted saponification was developed for simultaneous
determination of vitamin E isomers in vegetable oil by high‐performance liquid …

In order to better separate the fat-soluble vitamin E isomers in vegetable oils, a method for
rapid separation and determination of vitamin A and vitamin E in vegetable oil by ultra high …

A rapid capillary electrochromatographic (CEC) method for the analysis of vitamin E in
vegetable oils is reported. Vitamin E consists of a group of eight isomers, tocopherols …

A method was developed to simultaneously determine eight bioactive compounds in edible
oil based on ultrasound-assisted saponification, liquid-liquid extraction and liquid …

A method was established for the determination of eight vitamins E (α-, β-, γ-, δ-tocopherol
and α-, β-, γ-, δ-tocotrienol) in vegetable oils using gas chromatography-mass spectrometry …

Vitamin E consists of four (α-, β-, γ-, δ-) isoforms of tocopherols (T) and tocotrienols (T3),
collectively known as tocols. Current LC methods for tocols suffer from either the poor ability …

A quick and direct method for measuring tocopherols (α, β+ γ and δ) in vegetable oils has
been developed using RP-HPLC with UV detection. Previous extraction of tocopherols is not …

A method is described for the determination of vitamin E isomers [α-,(β+ γ)-and δ-
tocopherols] in seeds and nuts by reversed-phase HPLC with coulometric detection. Three …

A rapid and automated method for the analysis of α-, γ-and δ-tocopherols in vegetable oils is
reported. Continuous extraction of vitamin E isomers from oil samples dissolved in Triton X …

A new approach based on the ultrasound‐assisted reversed‐phase dispersive liquid–liquid
microextraction technique is developed for the extraction and determination of vitamin A and …