In the present study, a comprehensive and systematic strategy was described to evaluate the performance of several three-way calibration methods on a bio-analytical problem. Parallel factor analysis (PARAFAC), alternating trilinear decomposition (ATLD), self-weighted alternating trilinear decomposition (SWATLD), alternating penalty trilinear decomposition (APTLD) and unfolded partial least squa...

New chemometric approaches were applied to high performance liquid chromatography (HPLC) for simultaneous determination of esomeprazole magenisum trihydrate and naproxen in their synthetic mixture. These chemometric approaches were applied to the multiwavelength HPLC peak area ratio obtained by plotting the chromatograms at the five wavelengths using diclofenac sodium as internal standard (IS)....

in the present study, a comprehensive and systematic strategy was described to evaluate the performance of several three-way calibration methods on a bio-analytical problem. parallel factor analysis (parafac), alternating trilinear decomposition (atld), self-weighted alternating trilinear decomposition (swatld), alternating penalty trilinear decomposition (aptld) and unfolded partial least squa...

The influence of different brewing conditions on the concentration of the main caffeoylquinic acids (3-caffeoylquinic acid (3-CQA), 4-caffeoylquinic acid (4-CQA), and 5-caffeoylquinic acid (5-CQA)) was investigated. For this purpose, twenty-four coffee brews were extracted and analyzed using HPLC-DAD at 325 nm. Our findings demonstrate the great impact of brewing techniques on the caffeoylquini...

Abstract In this study, we propose a simple, cost-effective, and sensitive high-performance liquid chromatography with both detection techniques such as diode-array fluorescence (HPLC-DAD-FLD) for the determination of nesfatin-1 in fetal bovine serum samples. The limit (LOD) quantification (LOQ) were set at satisfactory values range 0.22–0.35 mg mL −1 0.67–1.05 , respectively (at two different ...

Antennaria dioica ( Asteraceae family) – is a perennial herb, commonly found in dry grasslands and sandy or stony places from Eurasian areas. It known traditional medicine as antioxidant, diuretic, choleretic anti-inflammatory remedy. This species should be reconsidered possible sources of phenols, mainly flavonoids hydroxycinnamic acids. Thus, the aim this study was to validate chromatographic...

The sonoextraction (SE) of aescin saponins and phenolic compounds from the inedible seed kernels Aesculus hippocastanum was optimized using a central composite rotatable design coupled with response surface methodology, where joint effects ultrasonic power, sonication time, ethanol proportion were investigated. Flavonol glycosides (≥90 % fraction), flavan-3-ols, acids, identified by HPLC-DAD-ES...

Purpose: As the demand for natural cosmetics increases, properly managing production and quality control should be prioritized. Chlorogenic acid (CGA), epicatechin gallate (ECG), rosmarinic (RMA) were selected to validate cosmetic composite LOL, a mixture of 50% EtOH extract Ligularia stenocephala (LS), Orostachys japonica (OJ), Lavandula angustifolia (LA). Methods: Highperformance liquid chrom...