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Identification of polystyrene nanoplastics from natural organic matter in complex environmental matrices by pyrolysis–gas chromatography–mass spectrometry
Due to the flux of plastic debris entering the environment, it becomes urgent to document and monitor their degradation pathways at different scales....
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Design of stable covalent organic frameworks for transport regulation of mass and energy
This feature article discusses the design of stable covalent organic frameworks (COFs) for the transport regulation of protons, electrons, and...
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Improved residue on ignition method for the mass fraction of inorganic impurities of pure organic substances
The mass fraction of inorganic impurities of a pure organic substance can be determined by the residue on ignition method and then used to calculate...
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Screening of Organic Acidurias by Gas Chromatography–Mass Spectrometry (GC–MS)
Organic acidurias or acidemias are a group of diverse disorders caused by decreased or diminished activity of specific enzyme or transporter involved...
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Screening of volatile organic compounds (VOCs) from liquid fungal cultures using ambient mass spectrometry
The potential of fungi for use as biotechnological factories in the production of a range of valuable metabolites, such as enzymes, terpenes, and...
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Optimization of mass matching and organic electrolytes for Li-ion hybrid supercapacitors based on LiMn2O4 cathode and AC anode with commercial-level mass loading
Lithium-ion hybrid supercapacitor, composed of a capacitor-type electrode and a battery-type electrode, has the potential to deliver high energy...
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Deciphering the human urine matrix: a new approach to simultaneously quantify the main ions and organic compounds by ion chromatography/mass spectrometry (IC-MS)
Analyzing the composition of (human) urine plays a major role in the fields of biology and medicine. Organic molecules (such as urea, creatine) and...
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Mass Spectrometry
Mass spectrometry (MS) is a powerful analytical technique that can solve most complex problems faced by the food analytical chemist, both in a...
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Determination of 9 Biological Amines and 2 Organic Amines in Fish Meat by Precolumn Derivatization Liquid Chromatography-Tandem Mass Spectrometry Based on Hinsberg Reaction
Multiple studies have demonstrated the harmful effects of consuming high levels of biogenic amines (BAs) and organic amines (OAs), underscoring the...
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Gas Chromatography–Atmospheric Pressure Photoionization Mass Spectrometry: Detection of Unknown Low-Molecular-Weight Organic Components of Complex Mixtures at the Trace Level
AbstractThe limit of detection of gas chromatography–electron ionization mass spectrometry (in scanning in the full ion current mode) is 10 –11 to 10 –10...
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Mass Spectrometry
Mass spectrometry is a useful technique for determination of molecular weight and molecular formula of an unknown compound. In this technique, mass...
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Dissolved Organic Matter
The ocean is a salty and very diluted broth of organic matter that contains about 680 Pg C. More than 97% of this organic matter is in the dissolved...
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In situ fabrication of covalent organic frameworks on solid-phase microextraction probes coupled with electrospray ionization mass spectrometry for enrichment and determination of androgens in biosamples
Solid-phase microextraction (SPME) coupled with electrospray ionization mass spectrometry (ESI-MS) was developed for rapid and sensitive...
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A simple method for rapid screening and diagnosis of common organic acidemias: quantitative detection of serum and urine organic acid profiles based on liquid chromatography-tandem mass spectrometry
Organic acid (OA) analysis is a specific test for inherited metabolic disorders (IMDs); however, the previous detection methods are laborious and...
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Maltose-functional metal–organic framework assisted laser desorption/ionization mass spectrometry for small biomolecule determination
A series of functional metal–organic frameworks (MOFs) were facilely prepared through an one-pot procedure or post-synthetic modification strategy...
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Covalent organic framework-based magnetic solid-phase extraction coupled with gas chromatography-tandem mass spectrometry for the determination of trace phthalate esters in liquid foods
Covalent organic framework-coated magnetite particles (Fe 3 O 4 @COF) were synthesized and applied as the adsorbent to the selective capture of...
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Organic Oxygen Compounds
A short overview on organic oxygen compounds.
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Quantitative Organic Acids in Urine by Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GCxGC-TOFMS)
Seventy-six organic acids in urine specimens are determined with quantitative two-dimensional gas chromatography-time-of-flight mass spectrometry...
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Volatile organic compounds identification and specific stable isotopic analysis (δ13C) in microplastics by purge and trap gas chromatography coupled to mass spectrometry and combustion isotope ratio mass spectrometry (PT-GC-MS-C-IRMS)
Microplastics (MPs) have become one of the major global environmental issues in recent decades due to their ubiquity in the environment....
