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1561
Antibacterial, Antibiofilm, and Efflux Pump Inhibitory Properties of the Crude Extract and Fractions from Acacia macrostachya Stem Bark
Published 2021-01-01“…A crude methanol extract obtained by Soxhlet extraction was partitioned by column chromatography to obtain the petroleum ether, ethyl acetate, and methanol fractions. …”
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1562
Etodolac Single Dose Metabolic Profile Elucidation: Pharmacokinetics and Adverse Events in Healthy Volunteers
Published 2025-01-01“…Pharmacokinetic profiles were determined using tandem mass spectrometry analysis, and the metabolomic profiling was conducted using baseline samples (pre-dose) and samples at maximum drug concentration (post-dose) via liquid chromatography coupled with a quadrupole time-of-flight mass spectrometer. …”
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1563
Multianalytical Method Validation for Qualitative and Quantitative Analysis of Solvents of Abuse in Oral Fluid by HS-GC/MS
Published 2016-01-01“…Thus, the present work aimed to develop and validate an analytical method for quantification and detection of solvents used as inhalants of abuse in oral fluid (OF), using Quantisal™ as collector device by headspace and gas chromatography coupled with a mass detector (HS-GC/MS). …”
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1564
Profiles of Killer Systems and Volatile Organic Compounds of Rowanberry and Rosehip-Inhabiting Yeasts Substantiate Implications for Biocontrol
Published 2025-01-01“…The selected <i>H. uvarum</i>, <i>M. pulcherrima</i>, <i>S. cerevisiae</i>, and <i>S. paradoxus</i> yeast strains representing both berries were applied for VOC analysis and identification by gas chromatography-linked mass spectrometry. It was revealed that the patterns of emitted volatiles are yeast species-specific. …”
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1565
In vitro and in vivo investigations of selected varieties of Areca catechu L - Phytochemical analysis, antiulcer, and wound healing activity
Published 2025-05-01“…High-performance thin Layer Chromatography (HPTLC) was employed to quantify the percentage of arecoline, ranging from 0.12 % to 0.95 % in the samples. …”
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1566
Optimized extraction and kinetic study of cholesterol oxidase from a newly isolated Escherichia fergusonii strain from local whey samples: insights through a combined experimental...
Published 2025-01-01“…The crude product was purified by ammonium sulfate precipitation and followed by ion exchange chromatography utilizing Q-Sepharose, resulting in 5.35-fold and 13.86-fold purification, respectively, with a final specific activity of 15.8 U/mg. …”
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1567
Nonspecific response of Lake Baikal phytoplankton to anthropogenic impact
Published 2022-09-01“…Using the method of gas chromatography, we showed a lower (up to 15 %) content of polyunsaturated fatty acids in phytoplankton characterized by stress occurrence. …”
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1568
Determination of Organophosphorus Esters in Fall Protection Equipment by Accelerated Solvent Extraction and Solid-Phase Extraction Coupled with LC-MS/MS Detection
Published 2021-01-01“…An analysis method was established to determine 14 organophosphorus ester (OPE) flame retardants in fall protection equipment by combining accelerated solvent extraction (ASE) and solid-phase extraction (SPE) with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). …”
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1569
Lack of Male-Female Differences in Disposition and Esterase Hydrolysis of Ramipril to Ramiprilat in Healthy Volunteers after a Single Oral Dose
Published 2003-01-01“…Plasma ramipril and ramiprilat concentrations were determined according to validated methods involving liquid chromatography-mass spectrometry. A total number of 2 � 34 available plasma concentration-time curves of both the parent drug and the metabolite could be analysed, and variations (50�100% coefficient of variation [CV]) in plasma concentrations of both parent drug and metabolite were found. …”
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1570
Aflatoxin M1 Concentrations, Adulterants, Microbial Loads, and Physicochemical Properties of Raw Milk Collected From Nekemte City, Ethiopia
Published 2024-01-01“…The AFM1 concentration was determined by high-performance liquid chromatography (HPLC) with a Sigma-Aldrich standard (St. …”
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1571
Assessment of phytochemical screening, antibacterial, analgesic, and antipyretic potentials of Litsea glutinosa (L.) leaves extracts in a mice model.
Published 2025-01-01“…<h4>Methods</h4>In this study, we conducted an initial investigation of the major phytochemical groups present in L. glutinosa leaves using both modern chromatographic techniques, specifically High-Performance Liquid Chromatography (HPLC), and conventional phytochemical screening methods applied to cold methanol extracts. …”
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1572
Occurrence and bioaccumulation of organophosphate flame retardants in high-altitude regions: A comprehensive field survey in Qinghai Province, China
Published 2025-01-01“…Herein, a general pretreatment method for OPFRs across various sample matrices was established and combined with gas chromatography-mass spectrometry (GC-MS), utilizing a programmed temperature ramp in the vaporization chamber to enable high-throughput detection of OPFRs in various environmental matrices. …”
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1573
HEMPSEED AND COTTONSEED OILS IN THE ACCESSIONS FROM THE VIR COLLECTION AS SOURCES OF FUNCTIONAL FOOD INGREDIENTS
Published 2019-10-01“…The PUFA profile was measured using gas chromatography with mass spectrometry equipment (Agilent 6850, USA). …”
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1574
Skeletal Site-Specific Lipid Profile and Hematopoietic Progenitors of Bone Marrow Adipose Tissue in Patients Undergoing Primary Hip Arthroplasty
Published 2025-01-01“…BM, BMAT, and gfSAT were explored at the levels of total lipids, fatty acids, and cells by using thin-layerand gas chromatography, ex vivo cellular assays, and flow cytometry. …”
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1575
Changes in glycosphingolipid levels in plasma and cerebrospinal fluid of individuals with Lysosomal Free Sialic Acid Storage Disorder
Published 2025-01-01“…This study investigated GSL levels in FSASD plasma and cerebrospinal fluid (CSF) using two normal-phase high-performance liquid chromatography assays. In plasma, GM1a was significantly elevated, while GM2 was decreased, with no significant alterations in other GSL species. …”
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1576
Integrated SegFlow, µSIA, and UPLC for Online Sialic Acid Quantitation of Glycoproteins Directly from Bioreactors
Published 2025-01-01“…The system consists of a micro‐sequential injection analyzer (µSIA) interfaced with SegFlow and an ultra performance liquid chromatography (UPLC). The fully automated architecture exemplifies the execution of online sampling, automatic sample preparation, and subsequent online UPLC analysis. …”
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1577
Comparative Analysis of Chemical Composition and Antibacterial Activity of Essential Oils from Five Varieties of <i>Lavender</i> Extracted via Supercritical Fluid Extraction
Published 2025-01-01“…This study aimed to determine the chemical composition of five <i>Lavender</i> essential oils (LEOs) using the gas chromatography–mass spectroscopy technique and to assess their antibacterial activity against four marine <i>Vibrio</i> species, including <i>Shewanella algae</i>, <i>Shewanella maridflavi</i>, <i>Vibrio harveyi</i>, and <i>Vibrio alginolyticus</i>. …”
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1578
Saussurea gossypiphora extracts reduce inflammation by reversing inflammatory cytokine levels in in-vitro and in-vivo
Published 2025-02-01“…Methods: The antioxidant activities of Methanolic extracts of flowers of Saussurea gossypiphora (MESGD) were examined using 1,1-diphenyl-2-picrylhydrazyl assay. Gas Chromatography Mass Spectrometric investigation revealed the presence of various bio-active constituents. …”
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1579
Maize Fungal Growth Control with Scopoletin of Cassava Roots Produced in Benin
Published 2017-01-01“…The dosage of scopoletin from parts of the root (first skin, second skin, whole root, and flesh) was done by High Performance Liquid Chromatography. The scopoletin extract was used to assess the activity of 12 strains (11 strains of maize and a reference strain). …”
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1580
Red Currant (<i>Ribes rubrum</i> L.) Fruit Waste Extract and Juice as Potential Spasmolytic Agents
Published 2025-01-01“…The flavonol and anthocyanin contents of the samples were determined using high-performance liquid chromatography. The antispasmodic effects were assessed in in vitro conditions, and the potential impact of the samples and possible action mechanisms were revealed. …”
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