Vitamin K is traditionally connected with blood coagulation, since it is needed for the
posttranslational modification of 7 proteins involved in this cascade. However, it is also …

This paper reviews the recent development of electrochemical sensors for the detection of
vitamins over the past three years. Vitamins present in natural foodstuffs are a group of …

A simple cloud-point extraction coupled to in-situ metathesis reaction of deep eutectic
solvents method followed by high-performance liquid chromatography for rapid …

A rapid ultra-high performance liquid chromatography–atmospheric pressure chemical
ionization tandem mass spectrometric (UHPLC-APCI-MS/MS) method was developed for the …

A double-stage Lab-In-Syringe automated extraction procedure coupled online to HPLC for
the determination of four sulfonamides in urine has been developed. Our method is based …

Published data on various versions of the homogeneous liquid–liquid microextraction
(HLLME) of organic compounds are generalized and systematized, and a classification of …

The production of nutraceutical compounds through biosynthetic approaches has received
considerable attention in recent years. For example, Menaquinone-7 (MK-7), a sub-type of …

Vitamin K is an essential nutrient in the body and involved in numerous physiological and
pathophysiological functions. Both the lack and surplus of vitamin K can put human health at …

Background: Sample preparation has gained significant recognition in the chemical analysis
workflow. Substantial efforts have been made to simplify the comprehensive process of …

A salting-out assisted liquid-liquid extraction (SALLE) method followed by high-performance
liquid chromatography with ultraviolet-visible detector (HPLC-UV/Vis) has been proposed for …