Solid-Phase Extraction (SPE)

The European Commission's regulation on maximum levels for certain contaminants in food highlights the need for precise and reliable methods to quantify per- and polyfluoroalkyl substances (PFAS) in various food matrices. This article discusses development and validation of a robust method for analyzing 21 PFAS compounds in chicken eggs using solid-phase extraction (SPE) and liquid chromatography–mass spectrometry (LC–MS).

Universidade Federal do Rio Grande scientists recently created a vortex-assisted matrix solid-phase dispersion (VA-MSPD) method for extracting persistent organic pollutants from shrimp.

Analyzing biological samples is crucial for disease diagnosis and treatment, public safety, and forensic examination.

Hangzhou Dianzi University scientists recently tested a new metal–organic framework (MOF)-based system for extracting benzodiazepines (BZPs) from urine.

Dokuz Eylul University scientists tested dispersive micro solid-phase extraction (D-µSPE)’s effectiveness for detecting polycyclic aromatic hydrocarbons (PAHs) in fruit juice and environmental water samples.

University of Saskatchewan scientists analyzed phosphorus compounds in soil using two-dimensional ion chromatography-tandem mass spectrometry (2D-IC-MS/MS).

Scientists from Universidad Autónoma del Estado de Hidalgo recently tested a new dispersive solid phase micro-extraction (DSPME) technique for removing naphthol isomers from water samples.

Mankind Research Centre scientists recently tested a new solid phase extraction (SPE)-based approach coupled with GC–MS for analyzing small molecule N–nitrosamine impurities in antitussive syrups.

Scientists from the Zheijiang University of Technology published a review article on the extraction of terpenoids from essential oils to determine what techniques can optimize enantiomer separation.

Scientists from the Universidade Federal do Paraná recently tested a new extraction device for determining carcinogenic aromatic amines in smoker urine.

Scientists from Wuhan Textile University recently tested a new solid-phase extraction system for analyzing covalent organic frameworks (COFs).

In this installment, we examine trends in the use of sample preparation techniques through the lens of instrumental analysis by gas chromatography (GC) and GC–mass spectrometry (GC–MS).

Scientists from the Chinese Academy of Inspection and Quarantine recently published a review on how green solvents can further the evolution of microextraction techniques.

Here are the top five articles that the editors of LCGC International published this week.

Microextraction using sustainable green solvents, followed by mass spectrometric analysis, comprise a combined approach that is still in its infancy.

In this edition of “Inside the Laboratory,” Emanuela Gionfriddo, PhD, an associate professor of chemistry at the University at Buffalo, discusses her group’s current research endeavors, including using solid-phase microextraction (SPME) coupled to liquid chromatography (LC) and gas chromatography (GC) to further understand the chemical relationship between environmental exposure and disease and elucidate micropollutants fate in the environment and biological systems.

Conventional sample preparation can be time- and resource-consuming, and a green analytical methodology can be a game-changer for scientists, in addition to facilitating selective and sensitive separations.

A recent study published in Analytical and Bioanalytical Chemistry examined a new detection method for natural bioactive compounds.

A recent study from the Cantonal Laboratory Zürich examined using micro solid-phase extraction for pesticide analysis.

A recent study explores the use of liquid–liquid extraction (LLE) and gas chromatography–mass spectrometry (GC–MS) to identify the compounds found in extractives of Alaska Yellow Cedar trees.

A group of Taiwanese scientists have recently created a new method for assessing food quality and detecting histamine in wine samples.

On February 25, a Pittcon oral session, titled “Detection of PFAS and other Polyfluorinated Analytes,” took place at the San Diego Convention Center in San Diego, California. This session included six talks that covered a variety of analytical techniques currently being used in per- and polyfluoralkyl (PFAS) analysis.

A recent study conducted at the University of Jaén in Spain, unveils the presence of 21 phenolic pollutants, including bisphenols and alkylphenols, in milk and dairy products, with significant concentrations detected in items packaged in materials such as polystyrene terephthalate and multilayer packaging, emphasizing the importance of packaging choices in minimizing phenolic contamination.

Researchers at the Shanghai Academy of Agricultural Sciences have developed a new magnetic solid-phase extraction method using MIL-101(Cr)@Fe3O4 nanocomposites, detailed in the Food Control journal, enabling the efficient and simultaneous detection of multiple mycotoxins in agricultural products, potentially impacting food and feed safety standards.

Non-alcoholic beers are becoming more popular and need to reflect the sophisticated flavourings of beers that are brewed containing alcohol. Sophisticated analytical techniques can help to achieve this.

Scientists from the Huazhong University of Science and Technology have developed a new method for analyzing quinolones in urine.

To quantify cyanide in different samples, a group of Brazilian scientists created a detection method based around headspace single-drop microextraction (HS-SDME).

A novel LC–MS/MS method, with a dual ESI and APCI source using simple solvent extraction for sample preparation, was validated for analysis of 102 pesticides and 5 mycotoxins regulated by Colorado state in dried hemp.

A recent study conducted in Beijing, China, presented a novel method involving LC–MS/MS, UAE, and online SPE for characterizing environmental pollutants.