-
1561
Source attribution, health risk analysis, and policy implications of PAHs and NPAHs in PM $$_{10}$$ in Northern Mexico
Published 2024-12-01“…Advanced gas chromatography-mass spectrometry (GC-MS and GC-NCI-MS) revealed significant PAHs concentrations, with levels in MMA reaching 108.89 ± 99.90 ng/m $$^3$$ , CHI at 100.69 ± 122.60 ng/m $$^3$$ and CDJ at 73.26 ± 90.85 ng/m $$^3$$ . …”
Get full text
Article -
1562
Microbial community succession characteristics in an anaerobic baffled reactor during phenol gradient acclimation
Published 2025-03-01“…Phenol degradation intermediates were performed using gas chromatography/mass spectrometry (GC–MS), with their quantities measured by high-performance liquid chromatography. …”
Get full text
Article -
1563
Accumulation and distribution of cadmium at organic-mineral micro-interfaces across soil aggregates
Published 2025-01-01“…Pot experiments were conducted to assess the impacts of mineral, organic, and microbial amendments on the Cd distribution in soil aggregates using synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectroscopy and nano-scale secondary ion mass spectrometry (NanoSIMS). Our results revealed that different soil amendments exerted varying effects on Cd accumulation in soil aggregates. …”
Get full text
Article -
1564
Rapid Determination of Pemetrexed Concentration and Distribution in Human Breast Cancer Cells (McF-7) Based on UHPLC-MS/MS
Published 2021-01-01“…An ultra high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method was developed for rapid quantification of pemetrexed concentration in human breast cancer cells (MCF-7). …”
Get full text
Article -
1565
Gender-Specific Independent and Combined Effects of the Cortisol-to-Cortisone Ratio and 11-Deoxycortisol on Prediabetes and Type 2 Diabetes Mellitus: From the Henan Rural Cohort St...
Published 2019-01-01“…Liquid chromatography-tandem mass spectrometry was used to assess serum cortisol, cortisone, and 11-deoxycortisol. …”
Get full text
Article -
1566
Proteomics analysis reveals age-related proteins in the urine of chronic kidney disease patients
Published 2025-01-01“…Utilizing liquid chromatography–tandem mass spectrometry (LC–MS/MS) proteomic analysis, we identified a total of 1,712 proteins in the urine samples from both healthy controls and CKD patients in our discovery cohort. …”
Get full text
Article -
1567
Selective solvothermal extraction of tetrabromobisphenol A to promote plastic recycling
Published 2025-03-01“…Removal of total elemental bromine was analyzed with X-ray fluorescence (XRF), whereas the removal of TBBPA and other plastic additives was evaluated with direct insertion probe mass spectrometry (DIP-MS). IPA/NaOH extraction provided efficient bromine removal, but it also extracted plenty of other plastic additives, including phenolic stabilizers Irganox 1076 and Cyasorb UV-2908. …”
Get full text
Article -
1568
Antimicrobial Activity and Mode of Action of N-Heterocyclic Carbene Silver(I) Complexes
Published 2024-12-01“…Some preliminary information on the Ag target was obtained by analyzing the cytosol of <i>E. coli</i> treated with Ag5MC by size-exclusion chromatography (SEC) coupled with inductively coupled plasma mass spectrometry (ICP-MS).…”
Get full text
Article -
1569
Bar Adsorptive Microextraction Approach for Trace Determination of Local Anesthetics in Urine Matrices
Published 2024-12-01“…Two extractive preconcentration techniques, solid-phase microextraction (SPME) LC Tips and bar adsorptive microextraction (BAμE), were studied and applied to the four target anesthetics, followed by gas chromatography-mass spectrometry (GC-MS) analysis. Several parameters that could affect microextraction and back-extraction were optimized using two different designs of experiments (Box–Behnken and full-factorial) to maximize extraction efficiency from aqueous media. …”
Get full text
Article -
1570
Hypoxylon luteogranulatum (Hypoxylaceae, Xylariales), a novel species from Thailand with distinct chemical and ecological traits
Published 2025-01-01“…During the course of our ongoing study of the diversity of Thai fungi and their secondary metabolites, numerous specimens within the Hypoxylaceae have been characterised by traditional morphology, chemotaxonomy using ultra-high-performance liquid chromatography coupled to diode array detection and ion mobility tandem mass spectrometry (UHPLC-DAD-IM-MS/MS), and molecular phylogenetic analyses. …”
Get full text
Article -
1571
Increased Duodenal Iron Absorption through Upregulation of Ferroportin 1 due to the Decrement in Serum Hepcidin in Patients with Chronic Hepatitis C
Published 2018-01-01“…Serum level of hepcidin-25 was measured by liquid chromatography-tandem mass spectrometry. Ferroportin 1 (FPN) mRNA was measured by RT-PCR and FPN protein was analyzed by western blot. …”
Get full text
Article -
1572
Oleanolic Acid Cubic Liquid Crystal Nanoparticle-Based Thermosensitive Gel Attenuates Depression Symptoms in Chronic Unpredictable Mild Stress Rats
Published 2025-02-01“…The pharmacokinetics of OANG was studied in rats, and OA content was determined using liquid chromatography-mass spectrometry (LC-MS). The pharmacological effects of OANG on depression were evaluated in chronic unpredictable mild stress (CUMS) model rats.Results: The phase transition temperature of the gel was 34°C, and the release of OA from OANG was slow according to the Higuchi kinetic equation. …”
Get full text
Article -
1573
Assessment of the essential oil extracted from Citrus aurantifolia leaves using solvent-free microwave extraction technique
Published 2025-03-01“…Gas chromatography-mass spectrometry (GC–MS) profiling revealed multiple bioactive components in C. aurantifolia leaves EO, with neral (30.728 %), d-limonene (22.824 %), citral (19.430 %), lemonol (5.060 %), geraniol (3.447 %), geranial (3.079 %), and caryophyllene (3.959 %) being the major components. …”
Get full text
Article -
1574
BiomiX, a user-friendly bioinformatic tool for democratized analysis and integration of multiomics data
Published 2025-01-01“…The metabolomics annotation for Liquid Chromatography-Mass Spectrometry untargeted metabolomics is additionally supported using the mass-to-charge ratio in the CEU Mass Mediator database and fragmentation spectra in the TidyMass package. …”
Get full text
Article -
1575
iMulch: an investigation of the influence of polymers on a terrestrial ecosystem using the example of mulch films used in agriculture
Published 2025-01-01“…The development of a detection methodology using Raman spectroscopy and thermo-extraction desorption gas chromatography mass–spectrometry (TED-GC–MS), the adsorption behaviour, ageing in drainage water and soil, their transport behaviour in lysimeters, ecotoxicity, uptake in plants, a life cycle assessment (LCA) and upcycling were considered. …”
Get full text
Article -
1576
Experimental and Theoretical Study on the False Positive of Monomethyltin Determination in Toys Based on Gastric Juice Migration
Published 2020-01-01“…With metal tin powder as a representative of inorganic tin which existed in real samples, it was treated with artificial gastric juice (0.07 mol/L·HCl), followed by ethyl derivatization using sodium tetraethylborate [NaB(Et)4] and then analyzed by gas chromatography-mass spectrometry (GC-MS) according to the procedure specified in the standard of EN 71-3:2013+A3:2018 issued by the European Committee for Standardization (CEN). …”
Get full text
Article -
1577
Smart packaging tools for selected Indian traditional buffalo milk products: a case for on-package freshness indicators
Published 2023-11-01“…The prerequisites for developing freshness indicators were to identify the critical volatile headspace markers using solid phase microextraction (SPME) coupled with gas chromatography-mass spectrometry (GC-MS) for the respective dairy products, selection of suitable innovative ink components, namely dyes (methyl red, and methyl red sodium salt), plasticizer (glycerol), choose appropriate polymer support (methylcellulose, polyvinyl alcohol or paper), and adopt a suitable production technique such as casting, dipping, or electrospinning. …”
Get full text
Article -
1578
Tracing the change of the volatile compounds of soy sauce at different fermentation times by PTR-TOF-MS, E-nose and GC–MS
Published 2025-01-01“…Proton-transfer reaction time-of-flight mass spectrometry (PTR-TOF-MS), combined with electronic nose (E-nose), was first used to track the change of volatile organic compounds (VOCs) in soy sauce in this study. …”
Get full text
Article -
1579
Chemical Composition and Antioxidant and Antimicrobial Activities of Wormwood (Artemisia absinthium L.) Essential Oils and Phenolics
Published 2015-01-01“…The essential oil composition variability of A. absinthium L. aerial parts collected from four different Tunisian regions was assessed by gas chromatography (GC/FID) and by gas chromatography mass spectrometry (GC/MS). In addition, total polyphenols, flavonoids, and condensed tannins as well as antioxidant, antibacterial, and antifungal activities of methanolic extract and essential oils were undertaken. …”
Get full text
Article -
1580
Process Optimization and Antioxidant Activity of Pine Needle Essential Oil Extracted by Microwave-assisted Extraction
Published 2025-01-01“…Methods: Response surface methodology was used to optimize the process of extracting the pine needle essential oil from Pinus tabuliformis by microwave-assisted extraction (MAE), the components of essential oil were identified by gas chromatography-mass spectrometry (GC-MS) and the antioxidant activity was verified by DPPH and ABTS+ free radicals scavenging ability as indicators. …”
Get full text
Article