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501
Production of Biodiesel from Waste Vegetable Oil via KM Micromixer
Published 2015-01-01“…The presence of methyl ester groups at the produced biodiesel was confirmed using both the gas chromatography-mass spectrometry (GC-MS) and the infrared spectroscopy (FT-IR). …”
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502
Protocol for generating protein profiles and distance-based network analysis of murine tissue slices
Published 2025-03-01“…We describe steps for preparing muscle sections and liquid chromatography-tandem mass spectrometry (LC-MS/MS) analyses to generate spatial protein profiles along the longitudinal skeletal muscle axis. …”
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503
Development of the High Sensitivity and Selectivity Method for the Determination of Histamine in Fish and Fish Sauce from Vietnam by UPLC-MS/MS
Published 2020-01-01“…A selective, sensitive, and rapid method by using ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) for the determination of histamine in fish and fish sauce was developed. …”
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504
Species Identification and Effects of Aromatic Hydrocarbons on the Fluorescence Spectra of Different Oil Samples in Seawater
Published 2021-01-01“…Here, we developed a composition method using the fluorescence spectra of eight AH categories analyzed by gas chromatography-mass spectrometry (GC-MS) to evaluate the contribution of AHs to the total fluorescence of six different oil species. …”
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505
Long-Term Stability of Hydromorphone in Human Plasma Frozen at −20°C for Three Years Quantified by LC-MS/MS
Published 2022-01-01“…Hydromorphone concentrations were determined by ultra-performance liquid chromatography (UPLC) with gradient elution, followed by tandem mass spectrometry with electrospray ionization. Calibration curves demonstrated linearity of the assay in the concentration range of 0.3–20 ng/mL hydromorphone. …”
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506
ANTIBACTERIAL ACTIVITIES AND CHEMICAL COMPOSITION OF ESSENTIAL OIL OF BLUMEA BALSAMIFERA (L.) DC., DISTRIBUTED IN LAMDONG PROVINCE, VIETNAM
Published 2020-05-01“…The hydrodistillation method was used to isolate essential oil from leaves of this species, and gas chromatography/mass spectrometry (GC-MS) techniques were used to analyze the chemical constituents of the essential oil. …”
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507
Protocol for the purification and analysis of nuclear UFMylated proteins
Published 2025-03-01“…We then describe procedures for identifying and analyzing purified UFMylated proteins using mass spectrometry and western blot.For complete details on the use and execution of this protocol, please refer to Panichnantakul et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.…”
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508
Environmental Detoxification of Benzimidazole Fungicide Fuberidazole via Microbial Action in Liquid Cultures
Published 2024-09-01“…Analysis and quantification of Fuberidazole degradation and its metabolites were performed by gas chromatography mass spectrometry and UV-visible spectrophotometry. Pseudomonas syringae and Penicillium chrysogenum displayed great bioremedial potential and degraded 91 and 86% of Fuberidazole after 35 days. …”
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509
Effects of Pyrrhotite on the Combustion Behavior and the Kinetic Mechanism of Pyrite-Pyrrhotite Mixture Powders in the Air
Published 2023-01-01“…To study the influence of the pyrrhotite content in mixed mineral powders on the combustion behavior in the air, thermogravimetric mass spectrometry, X-ray diffraction analysis, and scanning electron microscopy were employed. …”
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510
Determination of Progestin Residues in Fish by UPLC-Q-TOF/MS Coupled with QuEChERS
Published 2019-01-01“…A novel method was developed for simultaneous determination of 10 progestin residues in fish by ultra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF/MS) combined with a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) method. …”
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511
Preparation and Properties of Ag-Containing Diamond-Like Carbon Films by Magnetron Plasma Source Ion Implantation
Published 2012-01-01“…The chemical composition of the deposited films was modified by the respective gas flows and determined using X-ray photoelectron spectroscopy and secondary ion mass spectrometry. The silver concentration within the DLC films influenced the structure and the tribological properties. …”
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512
Effect of Pretreatment on Detection of 37 Pesticide Residues in Chrysanthemum indicum
Published 2021-01-01“…This study aimed to develop a method, followed by gas chromatography-mass spectrometry, for detecting 37 pesticides in Chrysanthemum indicum (C. indicum) and investigating the decrease in the matrix-induced enhancement effect. …”
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513
Alkaloids in Processed Rhizoma Corydalis and Crude Rhizoma Corydalis Analyzed by GC/MS
Published 2014-01-01“…The alkaloids in the processed Rhizoma Corydalis and the crude Rhizoma Corydalis were qualitatively and semiquantitatively analyzed using gas chromatography-mass spectrometry (GC/MS) method. The processing herb drug procedure was carried out according to the standard method of Chinese Pharmacopoeia. …”
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514
Spray-Dried Microencapsulation of Oregano (Lippia graveolens) Polyphenols with Maltodextrin Enhances Their Stability during In Vitro Digestion
Published 2022-01-01“…The analyzed physical properties were morphology measured by electron microscopy and humidity; other properties evaluated were the content of total phenolic compounds, antioxidant capacity determined by DPPH and ABTS assays, and phenolic profile by ultraperformance liquid chromatography coupled to mass spectrometry (UPLC-MS). During the gastrointestinal simulation, a stability of 85% was determined in the intestinal stage. …”
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515
Determination of 20 Neonicotinoid Insecticides and Their Metabolites in Infant Foods by a Modified QuEChERS Method Combined with HPLC-MS/MS
Published 2022-01-01“…A rapid, effective, and reliable method for the simultaneous detection of 20 neonicotinoids and their metabolites in infant foods has been developed using liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). To improve the accuracy and precision of the method, different extraction solvents, extraction methods, and adsorbents were evaluated to achieve a better recovery and clean-up effect. …”
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516
Aerobic Biodegradation of Four Groups of Steroid Hormones in Activated Sludge
Published 2020-01-01“…An analytical method was developed for simultaneously monitoring four estrogens, seven androgens, seven progestogens, and eleven glucocorticoids in a single water sample using liquid chromatography-electrospray tandem mass spectrometry. Laboratory studies were then performed to investigate the aerobic biodegradation of 29 steroids belonging to the four groups. …”
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517
Urine metabolomic profiles of autism and autistic traits-A twin study.
Published 2024-01-01“…Here, we used untargeted mass spectrometry-based urine metabolomics to investigate metabolic differences for autism diagnosis and autistic traits in a well-characterized twin cohort (N = 105). …”
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518
Toxicity of Ulva lactuca and green fabricated silver nanoparticles against mosquito vectors and their impact on the genomic DNA of the dengue vector Aedes aegypti
Published 2022-06-01“…Ulva lactuca, a green macroalgae extract analysed through gas chromatography mass spectrometry reveals 31 compounds. Resistance of mosquito vectors to synthetic insecticides remains a major problem. …”
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519
Microwave-Assisted Digestion Using Dilute Nitric Acid and Hydrogen Peroxide for Multielement Determination in Wheat Flour by ICP-MS
Published 2023-01-01“…A closed-vessel microwave digestion method was developed for the simultaneous determination of macro, micro, and toxic elements (Mg, K, Ca, Al, Mn, Fe, Cu, Zn, Se, Rb, V, Cd, and As) in wheat by inductively coupled plasma mass spectrometry (ICP-MS). A two-level factorial design with four variables was employed to determine the optimal conditions for the significant parameters. …”
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520
Repair of Ceramic Ware in the Neolithic and Eneolithic (case study of the extreme North-East of Europe)
Published 2024-08-01“…Five samples of sealants from the Final Neolithic–Eneolithic Chuzhyael culture were analyzed by gas chromatography-mass spectrometry. It was found that the adhesive materials were tar obtained by the “double pot” method – heating the raw material in one pot while pouring the product into another container. …”
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