Since the 1990s, interest in natural product research has increased considerably. Following several outstanding developments in the areas of separation methods, spectroscopic techniques, and sensitive bioassays, natural product research has gained new attention for providing novel chemical entities. This updated review deals with sample preparation and purification, recent extraction techniques...

Viscoelastic Networks In article number 2205649, Ho Cheung Shum and co-workers develop a new aqueous two-phase system (ATPS) that displays dynamic assembly of viscoelastic networks by liquid–liquid phase separation liquid–solid (AqLL-LS PS2). are generated using phase-separated DEX droplets as templates the subsequent liquid-to-solid transition PNIPAM-rich phase.

Phthalate esters are endocrine disrupters or mutagens. They are widely used as plasticizers and can be usually found in environmental samples, such as food, soil and polluted air. However, it is difficult to directly determine phthalate esters owing to their relatively low concentration and complex matrices. Therefore, preconcentration and separation have become increasingly important. In recen...

Magnetic adsorption is considered a promising technology for water treatment and solid–liquid separation. Porous magnetic Fe3O4-hydroxyapatite (wFeHAp) nanocomposites were prepared from Moroccan natural phosphate in the presence of Fe3O4 nanoparticles by controlled precipitation method. Their efficiency removal trace metals was tested. After treatment, separation wFeHAp powder carried out apply...

Determination of Citrinin Using Molecularly Imprinted Solid Phase Extraction Purification, HPLC Separation, and Fluorescence Detection Michael Appell, Michael A. Jackson, Lijuan C. Wang & Wayne B. Bosma To cite this article: Michael Appell, Michael A. Jackson, Lijuan C. Wang & Wayne B. Bosma (2015) Determination of Citrinin Using Molecularly Imprinted Solid Phase Extraction Purification, HPLC S...

Spectrometric techniques for the analysis of trace lead have developed rapidly due to the increasing need for accurate measurements at extremely low levels of this element in diverse matrices. This review covers separation and preconcentration procedures, and considers the features of the application with several spectrometric techniques. The use of an appropriate sample handling technique is a...

Spectrometric techniques for the analysis of trace lead have developed rapidly due to the increasing need for accurate measurements at extremely low levels of this element in diverse matrices. This review covers separation and preconcentration procedures, and considers the features of the application with several spectrometric techniques. The use of an appropriate sample handling technique is a...

Production of fuel grade ethanol from various lignocellulosic materials using enzymatic hydrolysis has been under development for some time now. Some of the individual steps such as pretreatment, hydrolysis and fermentation have been improved to a great extent. Much effort has also been put into making the process as such more efficient. This includes studies on the effect of recirculation of p...