A hyphenated optical-electrochemical technique and image analysis protocol is used to quantify global local (intermetallic) corrosion process kinetics. Our findings reveal an early stage (< 60 s) composition-dependent hierarchical activation of all IMs that can be attributed IM dealloying. This followed by trenching initiated at matrix locations adjacent regions the previously dealloyed, which ...

Chromatography and spectroscopy techniques are the most commonly used methods in standardization of herbal medicines but the herbal system is not easy to analyze because of their complexity of chemical composition. Many cutting-edge analytical technologies have been introduced to evaluate the quality of medicinal plants and significant amount of measurement data has been produced. Chemometric t...

Abstract Red and purple grape juices (GJs) have long been consumed worldwide for their unique taste nutritive value. Moreover, is postulated to play an important role in the improvement of cardiovascular risk factors owing its rich polyphenol content. Little known regarding GJ’s holistic chemistry functionality as compared those other fruit juices. This review aims compile state-of-the art colo...

Design of Experiments (DoE) is an indispensable tool in contemporary drug analysis as it simultaneously balances a number chromatographic parameters to ensure optimal separation High Pressure Liquid Chromatography (HPLC). This manuscript briefly outlines the theoretical background DOE and provides step-by-step instruction for its implementation HPLC pharmaceutical practice. It particularly disc...

for many years, assessment of olive oil quality and itsauthenticity confimation has been of great importanceto guarantee olive oil safety in compliance with legislations. these include the investigation of olive oil purityand quality by analyzing several parameters such as fattyacid composition, sterols, phenolic compounds, triacylglycerol and etc, through performing conventional andadvanced hy...

In this article, we present a review work on different nutraceuticals found in natural matrices together with the analytical techniques used to identify and/or quantify them with special emphasis in the period January 2005-May 2010. The work is distributed according to the different families of nutraceuticals (lipids, vitamins, proteins, glycosides, phenolic compounds, etc.) discussing the anal...

Perfluoroalkyl substances (PFASs) are proliferated into the environment on a global scale and present in the organisms of animals and humans even in remote locations. Persistent organic pollutants of that kind therefore have stimulated substantial improvement in analytical methods. The aim of this review is to present recent achievements in PFASs determination in various matrices with different...