Showing 121 - 140 results of 487 for search '"Ionization"', query time: 0.04s Refine Results
  1. 121

    New Method for Determination of Drain Saturation Voltage in Short Channel MOS Devices Between Liquid Helium to Room Temperature by Y. Amhouche, A. El Abbassi, K. Raïs, E. Bendada, R. Rmaily

    Published 2001-01-01
    “…It is based on measurements of the partial derivative of the impact ionization rate. The method has been tested using main of channel length MOSFET devices and compared with others methods.…”
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  2. 122
  3. 123

    Separation of cis- and trans-Asarone from Acorus tatarinowii by Preparative Gas Chromatography by H. L. Zuo, F. Q. Yang, X. M. Zhang, Z. N. Xia

    Published 2012-01-01
    “…One percent of the effluent passed to the flame ionization detector (FID) for detection and the remaining 99% was directed to the fraction collector. …”
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  4. 124

    Analysis of Alphalactalbumin and Betalactoglobulin from the Rehydration of Bovine Colostrum Powder Using Cloud Point Extraction and Mass Spectrometry by Fan Zhang, Xiaohua Qi, Mingqiang Zou, Jinfeng Li

    Published 2012-01-01
    “…The results had been effectively confirmed by the characterization with matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS).…”
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  5. 125

    Statistical Study on the Effect of Meridional Neutral Wind on the Occurrence of Post‐Sunset Equatorial Ionospheric Irregularities by Bantayehu Aderaw, Melessew Nigussie

    Published 2025-01-01
    “…The finding reveals a strong correlation between ROTI values and the differences in meridional wind speeds at the north and south equatorial ionization anomaly (EIA) crests. Observations show that smaller speed differences (less than ∼5 m/s) between the north and south EIA crests support the formation of post‐sunset ionospheric irregularities, while larger speed differences (more than 5 m/s) do not support irregularity formation.…”
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  6. 126

    ESSENTIAL OILS PHARMACOPEIALIDENTIFICATION TESTS AND USES by Mobeen Islam

    Published 2024-10-01
    “…The detection methods used for TLC are UV light and chemical reactions whereas the detector used in GLC is flame ionization. The components of essential oils identified by these techniques are up to 10 or more. …”
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  7. 127

    Calculated Event Rates for Axion Detection via Atomic and Nuclear Processes by John D. Vergados, Paraskevi C. Divari, Hiroyasu Ejiri

    Published 2022-01-01
    “…In the second part, we will examine the axion-induced production of X-rays (axion-photon conversion) or ionization from deeply bound electron orbits. In this case, the axion electron coupling is predicted by existing axion models; no renormalization is needed. …”
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  8. 128

    Comparative Glycopeptide Analysis for Protein Glycosylation by Liquid Chromatography and Tandem Mass Spectrometry: Variation in Glycosylation Patterns of Site-Directed Mutagenized... by Young Hye Hahm, Sung Ho Hahm, Hyoun Young Jo, Yeong Hee Ahn

    Published 2018-01-01
    “…In this study, glycopeptide mapping of a reference and biosimilar recombinant antibodies (rAbs) was performed using liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) and an automated Glycoproteome Analyzer (GPA) algorithm. …”
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  9. 129

    Hollow-Fibre-Supported Dispersive Liquid-Liquid Microextraction for Determination of Atrazine and Triclosan in Aqueous Samples by Thabiso Letseka, Mosotho J. George

    Published 2017-01-01
    “…The relatively high detection limits are attributed to the flame ionization detector which is less preferred than a mass spectrometer in trace analyses. …”
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  10. 130

    LC-MS/MS Method for Simultaneous Quantification of Dexmedetomidine, Dezocine, and Midazolam in Rat Plasma and Its Application to Their Pharmacokinetic Study by Wenjuan Cui, Qin Liu, Shan Xiong, Lujun Qiao

    Published 2018-01-01
    “…The analytes were determined with selected reaction monitoring under positive ionization mode. The intra- and interday precision and accuracy were all within acceptable limits during the entire validation, and the stability of analytes was acceptable under various storage conditions. …”
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  11. 131

    Analytical Method Development and Validation for the Quantification of Acetone and Isopropyl Alcohol in the Tartaric Acid Base Pellets of Dipyridamole Modified Release Capsules by... by Sriram Valavala, Nareshvarma Seelam, Subbaiah Tondepu, V. Shanmukha Kumar Jagarlapudi, Vivekanandan Sundarmurthy

    Published 2018-01-01
    “…The method was developed and optimized by using fused silica DB-624 (30 m × 0.32 mm × 1.8 µm) column with the flame ionization detector. The method validation was carried out with regard to the guidelines for validation of analytical procedures Q2 demanded by the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH). …”
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  12. 132

    Long-Term Stability of Hydromorphone in Human Plasma Frozen at −20°C for Three Years Quantified by LC-MS/MS by Andreas Wehrfritz, Stefanie Schmidt, Harald Ihmsen, Jürgen Schüttler, Christian Jeleazcov

    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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  13. 133

    The effect of temperature factor during heavy ion irradiation on structural disordering of SiC ceramics by Kymbat M. Tynyshbayeva, Artem L. Kozlovskiy

    Published 2025-02-01
    “…In turn, the combination of the effects of thermal heating and ionization processes causes deformation distortion of chemical bonds, which is most pronounced at high irradiation temperatures, for which thermal expansion of the crystal lattice and accelerated diffusion of vacancy defects play a key role in disordering.…”
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  14. 134

    METROLOGICAL SUPPORT OF DOSIMETRY GAMMA-RAY WITH ENERGY TO 10 MEV FOR RADIATION PROTECTION DEVICES by D. I. Komar, R. V. Lukashevich, V. D. Guzov, S. A. Kutsen

    Published 2017-09-01
    “…The aim of this work was to determine the metrological characteristics of capture gamma-ray fields from titanium target and nickel target obtained at the AT140 Neutron Calibration Facility to provide dosimetry up to 10 MeV.We have chosen energy intervals in which we can calibrate dosimetry devices taking into account the accompanying generation of gamma-ray neutrons by the fast neutron source 238PuBe, the capture radiation of collimator materials and capture radiation from targets.We measured air kerma rate with the aid of the reference AT5350 dosimeter with the ionization chamber TM32002. Using the Monte-Carlo simulation, we obtained the energy distribution of the air kerma rate for targets. …”
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  15. 135

    Advanced LC-MS/MS method for selective quantification of nitrosamine impurities in Risperidone: Enhancing drug safety by Hitesh Thumbar, Pankajkumar Nariya, Bhavin Dhaduk

    Published 2025-08-01
    “…Positive electrospray ionization (ESI) in multiple reaction monitoring (MRM) mode was used for quantification. …”
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  16. 136

    Study of Grape Polyphenols by Liquid Chromatography-High-Resolution Mass Spectrometry (UHPLC/QTOF) and Suspect Screening Analysis by Riccardo Flamini, Mirko De Rosso, Luigi Bavaresco

    Published 2015-01-01
    “…The method allows identification of several hundred grape metabolites with two analyses (positive and negative ionization modes), and performing of data reprocessing using “untargeted” algorithms also provided the identification of some flavonols and resveratrol trimers and tetramers in grape for the first time. …”
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  17. 137

    UHPLC‐Q‐TOF‐MS/MS Dereplication to Identify Chemical Constituents of Hedera helix Leaves in Vietnam by Hong Ngoc Pham, Chieu An Tran, Thi Diep Trinh, Ngoc Lan Nguyen Thi, Huynh Nhu Tran Phan, Van Nhan Le, Ngoc Hung Le, Van Trung Phung

    Published 2022-01-01
    “…MS, and MS/MS experiments were manipulated using both negative and positive ionization modes to provide molecular mass information and production spectra for the structural elucidation of compounds. …”
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  18. 138

    Microwave assisted palladium catalyzed carbon-carbon bond formation to synthesise novel benzimidazole derivatives and their Photophysical properties, molecular docking, and DFT stu... by Vijayabharathi Sundharaj, S. Sarveswari

    Published 2025-02-01
    “…These calculations aimed to predict the chemical reactivity of the newly synthesized benzimidazole derivatives by assessing parameters such as the HOMO-LUMO energy gap value, ionization potential, electrostaic potential, electron affinity, electronegativity, global hardness, and softness energy values. …”
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  19. 139

    An Optimized High Throughput Clean-Up Method Using Mixed-Mode SPE Plate for the Analysis of Free Arachidonic Acid in Plasma by LC-MS/MS by Wan Wang, Suzi Qin, Linsen Li, Xiaohua Chen, Qunjie Wang, Junfu Wei

    Published 2015-01-01
    “…The collected fraction was injected onto a reversed phase column at 30°C with mobile phase of acetonitrile/water (70 : 30, v/v) and detected by LC-MS/MS coupled with electrospray ionization (ESI) in multiple reaction monitoring (MRM) mode. …”
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  20. 140

    Biosensitivity and Theoretical Electronic Structure Investigations on 3-(2-Hydroxyphenyl)-2-iminothiazolidin-4-one and Its Zn2+ and Cd2+ Metal Complexes by Zewdu Bezu Gemechu, Boobalan Maria Susai, Abi M. Taddesse, Endale Teju Bedada, R. Ramamoorthy

    Published 2021-01-01
    “…Other theoretical properties such as hardness, softness, electron affinities, and ionization potential were derived and discussed in detail.…”
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