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Separations, Volume 10, Issue 5

May 2023 - 50 articles

Cover Story: Marigold essential oil is a product of great industrial interest, due to its anti-inflammatory, antimicrobic, and wound healing properties. However, the development of a proper extraction technique is still an issue. In the present work, supercritical fluid extraction coupled with fractional separation was used to recover fragrance compounds from a marigold semi-finished material. In particular, the product of n-hexane extraction from marigold flowers (“concrete”) was utilized; this strategy represents a way to overcome the limitations of treating large volumes of vegetable material and seasonality constraints. Therefore, by changing the operating pressure and CO2 flow rate, extraction efficiency from marigold concrete was studied, and GC-MS analysis demonstrated that the fractionation between marigold essential oil and its waxes was successful. View this paper
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Articles (50)

  • Article
  • Open Access
4 Citations
2,107 Views
11 Pages

Azo dyes such as Congo red can easily cause cancer when they come into contact or are absorbed by the human body, so it is urgent to find a fast and simple method for degrading Congo red. In order to better achieve this research goal, an ultrasonic m...

  • Article
  • Open Access
3 Citations
2,893 Views
23 Pages

Capillary zone electrophoresis (CZE) is an important technique for the analysis of monoclonal antibodies (mAbs). A recently released light-emitting diode (LED)-induced fluorescence (LEDIF) detector equipped with a 275 nm LED for the detection of prot...

  • Article
  • Open Access
2 Citations
1,793 Views
16 Pages

This paper presents a numerical study of a closed-cycle evaporation system for the desalination of seawater. The system couples the condensing end of a heat pump with a humidifier, where the air is dehumidified in the heat pump evaporator. First, the...

  • Article
  • Open Access
9 Citations
2,593 Views
14 Pages

Application of Quality by Design Approach in the Optimization and Development of the UPLC Analytical Method for Determination of Fusidic Acid in Pharmaceutical Products

  • Mohamed Ibrahim,
  • Nasser Ali Alhabib,
  • Doaa Alshora,
  • Mounir M. Salem Bekhit,
  • Ehab Taha,
  • Wael A. Mahdi and
  • Abdulelah M. Harthi

Background: Analytical techniques are a crucial method used in quality control procedures. Fusidic acid (FU), an antibacterial drug, is available on the market in a semisolid dosage form. This work aimed to develop a simple, sensitive, and robust UPL...

  • Review
  • Open Access
6 Citations
2,216 Views
17 Pages

Membrane technology is an advanced hydrogen separation method that is of great significance in achieving hydrogen economy. Rare earth tungstate membranes have both high hydrogen permeability and remarkable mechanical/chemical stability, exhibiting go...

  • Article
  • Open Access
11 Citations
2,338 Views
15 Pages

Sunlight-Driven Degradation of Alprazolam and Amitriptyline by Application of Binary Zinc Oxide and Tin Oxide Powders

  • Nina Finčur,
  • Daniela Šojić Merkulov,
  • Predrag Putnik,
  • Vesna Despotović,
  • Nemanja Banić,
  • Szabolcs Bognár,
  • Dušica Jovanović,
  • Sanja Panić,
  • Tamara Ivetić and
  • Biljana Abramović

In recent years, much attention has been paid to pharmaceuticals as potential toxic bioactive substances in the worldwide environment. These compounds are continuously introduced into the surroundings in small concentrations, which certainly affects...

  • Protocol
  • Open Access
6 Citations
8,276 Views
15 Pages

Untargeted metabolomics approaches require complex samples containing the endogenous metabolites of a biological system. Here, we describe a set of protocols that can be applied to various types of samples, including prokaryotic and eukaryotic cells,...

  • Editorial
  • Open Access
4 Citations
3,382 Views
6 Pages

The Special Issue “Food Quality and Safety: Advances in Analytical Methods and Applications” was open to expert reviews and original contributions dealing with advances in analytical methods for the detection and quantification of potenti...

  • Article
  • Open Access
8 Citations
3,277 Views
15 Pages

Phenolic compounds are important secondary metabolites often found in nature, and most prominently in plants. Plant biomass residues can be a sustainable source of this high-added-value group of compounds that can be used in the food and cosmetics in...

  • Article
  • Open Access
2 Citations
1,698 Views
11 Pages

In the Chinese city of Wuchang, Heilongjiang Province, a survey was conducted to track the concentrations and distributions of several organic pollutants near drinking water reservoirs, such as conventional organochlorine pesticides (OCPs) and curren...

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Separations - ISSN 2297-8739