The determination of fat-soluble vitamins and carotenoids in human serum provides reliable
information for diagnosing malnutrition and for establishing appropriate intervention …

In this study, ultrasound-assisted emulsification microextraction with solidification of a
sedimentary drop of ionic liquid (USAEME-SSIL) was used to extract fat-soluble vitamins …

A green and inexpensive pretreatment known as dispersive liquid–liquid microextraction
(DLLME) was developed in this assay coupled with the LC–MS/MS method for routine …

Background Vitamin E deficiencies are prevalent around the world and have become one of
the major public health issues. It is necessary to determine their levels in human serum for …

The demand for analysis of carotenoids (CAR) and fat-soluble vitamins (FSV) is
continuously expanding, but currently used sample preparation methods either require …

In this work, a biocompatible monolithic column based micro-solid-phase extraction (µ-SPE)
method was developed for biological fluid analysis. A novel nanoparticle-based …

In the present study an ionic liquid based vortex assisted surfactant-enhanced emulsification
microextraction (IL-VASEME) method followed by Plackett–Burman Design (PBD) and …

The reliability of hollow fiber-based on using two immiscible organic solvents in the lumen
and wall pores of hollow fiber was evaluated for extraction and preconcentration of trace …

A simple, rapid and efficient microextraction method for the extraction and determination of
some fat-soluble vitamins (A, D2, D3) in aqueous samples was developed. For the first time …

A green and economical method for the extraction and preconcentration of natural pigments
(curcumin, demethoxycurcumin and bisdemethoxycurcumin) was developed using …