The present state of ion-pair chromatography (IPC) is reviewed. Emphasis is placed on the
theoretical modeling of the retention behavior of charged, zwitterionic, and neutral solutes …

The identification of melatonin in plants has inspired new investigations to understand its
biological function and which endogenous and external factors control its levels in these …

An original analytical method has been developed for the determination of the antioxidants
trans‐resveratrol (t‐RSV) and cis‐resveratrol (c‐RSV) and of melatonin (MLT) in red and …

This chapter includes the aspects of melatonin. The drug is synthesized in the pineal gland
starting from tryptophane or synthetically by using indole as starting material. Melatonin has …

In this study, a boron-doped diamond electrode was used for the electroanalytical
determination of melatonin in the pharmaceutical tablet and urine samples by square-wave …

The stability of ascorbyl palmitate, sodium ascorbyl phosphate and magnesium ascorbyl
phosphate in topical formulations was investigated by direct reverse phase high …

Melatonin is a powerful hormone and antioxidant with numerous effects on the metabolism
and the health of humans. Available as a dietary supplement in the United States since …

Ascorbic acid (AA), also known as vitamin C, is a very popular skin‐whitening agent used in
cosmetics. However, the use of AA (and also its sodium or magnesium salts) in cosmetic …

Simple, selective and accurate sensors were developed for the determination of melatonin
and oxomemazine in biological samples (urine) and in pharmaceutical preparations …

A stability indicating, reversed-phase ion-pair high-performance liquid chromatographic
method was developed and validated for the determination of risedronate in pharmaceutical …