In drug discovery and development, the quantification of drugs in biological samples is an important task for the determination of the physiological performance of the investigated drugs. After sampling, the next step in the analytical process is sample preparation. Because of the low concentration levels of drug in plasma and the variety of the metabolites, the selected extraction technique sh...

Organochlorine pesticides (OCPs) are the potential group of chemicals used to improve agricultural productivity. The extensive use of pesticides to improve agricultural productivity played an important role in the last century. These compounds have been applied for decades in preventing, repelling or mitigating the effects of pests. OCPs are one of the most persistent organic pollutants present...

Abstract As the world population continues to grow, so does pollution of water resources. It is, therefore, important identify ways reducing as part our effort significantly increase supply clean and safer water. In this study, efficiency ultrasound-assisted dispersive liquid–liquid microextraction (UA-DLLME) a fast, economical, simple method for extraction malachite green (MG) rhodamine B (RB)...

A fast and simple method based on ultrasound-assisted emulsification microextraction (USAEME) was developed for the analysis of volatile compounds in wines. full factorial 24 screening design built to investigate main factors affecting extraction components, namely volume solvent, sonication time, salt content, pH. Then, with significant effects were optimized using an I-optimal design. The opt...