Micelle to cyclodextrin stacking in open-tubular liquid chromatography using capillaries coated with surfactant admicelles

Review Biochemical Research Methods

Recent (2018-2020) development in capillary electrophoresis

Ziting Gao et al.

Summary: The review focuses on representative works published in 2018-2020 on sample preconcentration, separation media development, detector construction, and multidimensional separation in capillary electrophoresis.

ANALYTICAL AND BIOANALYTICAL CHEMISTRY (2022)

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Article Biochemical Research Methods

A dual preconcentration method by combining micro matrix solid-phase dispersion extraction with field-enhanced sample injection and micelle to cyclodextrin stacking for sensitive analysis of neutral coumarins

Chu Chu et al.

Summary: A rapid, sensitive, and environmentally friendly dual preconcentration method for determining furocoumarins has been developed by combining micro matrix solid-phase dispersion extraction with field-enhanced sample injection and micelle to cyclodextrin stacking. The method shows promise in detecting trace furocoumarins in complex matrix samples.

ELECTROPHORESIS (2021)

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Article Biochemical Research Methods

A stationary pseudophase semi-permanent coating for open-tubular capillary liquid chromatography and electrochromatography

Mohamed Adel Ahmed et al.

Summary: This study described the chromatographic and electrochromatographic separation of small neutral and charged analytes using a fused silica capillary with a stationary pseudophase semi-permanent coating of DDAB aggregates. The research showed the formation of DDAB patchy admicelle, complete admicelle, or larger aggregates inside the capillary, depending on the concentration of DDAB used in coating. Overall, the use of a stationary pseudophase coating provides a potentially easier alternative way to conduct open-tubular liquid chromatography and electrochromatography.

JOURNAL OF CHROMATOGRAPHY A (2021)

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Article Biochemical Research Methods

Online sample preconcentration techniques in nonaqueous capillary and microchip electrophoresis

Annestasia Simbut John et al.

Summary: This review provides a comprehensive overview of various online preconcentration techniques in nonaqueous capillary and microchip electrophoresis, including sample stacking, isotachophoresis, and micellar-based stacking. Attention is also given to multi-stacking strategies used for nonaqueous electrophoresis.

JOURNAL OF CHROMATOGRAPHY A (2021)

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Review Environmental Sciences

Antidepressant drugs as emerging contaminants: Occurrence in urban and non-urban waters and analytical methods for their detection

Carlos Castillo-Zacarias et al.

Summary: Antidepressants contaminate urban and non-urban water bodies, leading to bioaccumulation in aquatic animals. This contamination is expected to increase due to rising depression and anxiety levels during the COVID-19 pandemic.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Chemistry, Multidisciplinary

Can we replace liquid chromatography with the greener capillary electrophoresis?

Muhandiramge Ranasinghe et al.

Summary: Liquid phase separations, including liquid chromatography (LC) and capillary electrophoresis (CE), are crucial in chemical analysis. This review compares the analytical performance of LC and CE for the analysis of the same compounds, covering different modes and recommending CE as a potential replacement for some applications.

CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY (2021)

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Editorial Material Biochemical Research Methods

Sample preparation in capillary electrophoresis for the determination of small molecule drugs and metabolites in urine

Ranasinghe Muhandiramge et al.

BIOANALYSIS (2021)

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Article Environmental Sciences

First screening of biocides, persistent organic pollutants, pharmaceutical and personal care products in Antarctic phytoplankton from Deception Island by FT-ICR-MS

Bernardo Duarte et al.

Summary: In recent years, the Antarctic territory has experienced an increase in tourists and scientists, leading to a rise in anthropogenic footprint and emerging contaminants in Antarctic ecosystems. Through high-resolution mass spectrometry, 70 different contaminant compounds were found in phytoplankton, highlighting the presence of various toxic compounds. The detection of potential harmful substances at the base of the marine food web can have severe impacts on the ecosystem's trophic structure, indicating a need to revisit environmental protection guidelines.

CHEMOSPHERE (2021)

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Review Chemistry, Analytical

Liquid chromatography using ≤5 μm open tubular columns

Piliang Xiang et al.

Summary: Significant progresses have been made recently in liquid chromatography using <= 5-mu m-i.d. open tubular columns, enabling peak capacities of 2000+, efficiencies of 10+ million plates/m, and millisecond separations. This review article summarizes the latest advancements, procedures for preparing columns, selecting experimental components, and discusses the future prospects of this technique.

TRAC-TRENDS IN ANALYTICAL CHEMISTRY (2021)

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Review Food Science & Technology

Analytical Separation of Carcinogenic and Genotoxic Alkenylbenzenes in Foods and Related Products (2010-2020)

Huynh N. P. Dang et al.

Summary: Alkenylbenzenes are potentially toxic compounds found in food, especially in flavorings, requiring constant monitoring due to concerns about their health effects. The challenge in determining alkenylbenzenes in food lies in the complex sample matrices and low amounts present. Gas and liquid chromatography are commonly used separation techniques, with detection methods including flame ionisation and mass spectrometry.

TOXINS (2021)

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Article Chemistry, Multidisciplinary

How much separation sciences fit in the green chemistry canoe?

Gulyaim Sagandykova et al.

Summary: Contemporary analytical chemistry follows the trend of developing methodologies based on green chemistry concepts, with emphasis on making separation technique-based methodologies 'greener.' All-aqueous chromatography and miniaturized separation systems are discussed, but conclusions cannot be drawn due to conflicting viewpoints on green principles within different methodologies.

CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY (2021)

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Article Biochemical Research Methods