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

Over the current years, there seems to be an investigation into various nanomaterials for
their use in biomedical diagnostics thereby providing a fast-evolving field in healthcare …

Magnetic nanomaterials are widely used, but co-adsorption of impurities will lead to
saturation. In this study, the aim was to prepare a magnetic nano-immunosorbent material …

Vitamin D is an unstable compound to light, heat, and certain chemicals, so it is easily
degraded under various conditions. Therefore, instability is achieved through the …

Vitamin D and its analogues are fat-soluble vitamins that carry out important functions in
human and animal organisms. Many studies have pointed out the relationship between the …

Dietary supplements composed by the combination of a calcium salt with cholecalciferol
(vitamin D3) are widely used for improving bone health in conditions caused by the …

In this paper a sensitive voltammetric method was developed for determination of vitamin D3
in commercial dietetic supplements using unmodified glassy carbon electrode as a working …

The goal of green analytical chemistry is to implement efficient methods with reduced use of
toxic solvents and minimum generation of wastes streams. The use of emerging extraction …

Background For nutritional purposes, the measurement of vitamin D3 (defined as the sum of
vitamin D3 and previtamin D3) is required to obtain an accurate and reliable estimate of its …

The detection of vitamin D in complex samples is challenging because of the instability of
vitamin D in sample preparation. To resolve this problem, packed-fiber solid-phase …