Showing 101 - 120 results of 1,792 for search '"chromatography"', query time: 0.07s Refine Results
  1. 101
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    Lipophilicity Assessment of Ruthenium(II)-Arene Complexes by the Means of Reversed-Phase Thin-Layer Chromatography and DFT Calculations by Khalil Salem A. M. Shweshein, Filip Andrić, Aleksandra Radoičić, Matija Zlatar, Maja Gruden-Pavlović, Živoslav Tešić, Dušanka Milojković-Opsenica

    Published 2014-01-01
    “…The lipophilicity of ten ruthenium(II)-arene complexes was assessed by reversed-phase thin-layer chromatography (RP-TLC) on octadecyl silica stationary phase. …”
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    Article
  3. 103
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    Rapid and simple determination of histamine-N-methyl transferase activity by high-performance liquid chromatography with UV detection by Hajime Inoue, Ken-Ichi Hisamatsu, Miki Yamauchi, Norio Kumagai

    Published 2001-01-01
    “…Methylhistamine, which was separated from the enzymatic reaction system on reversed-phase high-performance liquid chromatography using an ion-paired chromatographic technique, was detected spectrophotometrically at 226 nm. …”
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  5. 105

    Determination of Vitamin B12 in Milk and Dairy Products by Isotope-Dilution Liquid Chromatography Tandem Mass Spectrometry by Baifen Huang, Jingshun Zhang, Mengli Wang, Zengxuan Cai

    Published 2022-01-01
    “…An isotope-dilution liquid chromatography tandem mass spectrometry method was established for the determination of vitamin B12 in milk and dairy products. …”
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  6. 106

    Determination of 4-Methylimidazole in Ammonia Caramel Using Gas Chromatography–Tandem Mass Spectrometry (GC-MS/MS) by Martyna N. Wieczorek, Krzysztof Przygoński, Henryk H. Jeleń

    Published 2018-01-01
    “…A method of 4-MeI determination based on ion-pair extraction and derivatisation with isobutyl chloroformate with subsequent gas chromatography-tandem mass spectrometry analysis was proposed. …”
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    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
    “…This method, coupled to liquid chromatography-high-resolution mass spectrometry, is effective in the study of grape metabolomics, in particular for characterization of flavonols, stilbene derivatives, and anthocyanins. …”
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    Article
  10. 110

    A High-Throughput Size Exclusion Chromatography Method to Determine the Molecular Size Distribution of Meningococcal Polysaccharide Vaccine by Imran Khan, K. M. Taufiqur Rahman, S. M. Saad Us Siraj, Mahbubul Karim, Abdul Muktadir, Arpan Maheshwari, Md Azizul Kabir, Zebun Nahar, Mohammad Mainul Ahasan

    Published 2016-01-01
    “…In this paper, we report a size exclusion chromatography method to determine the molecular size distribution and distribution coefficient value of meningococcal polysaccharide serogroups A, C, W, and Y in meningococcal polysaccharide (ACWY) vaccines. …”
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  11. 111

    Quantitative Analysis of Volatile Impurities in Diallyldimethylammonium Chloride Monomer Solution by Gas Chromatography Coupled with Liquid-Liquid Extraction by Cheng Liu, Yuejun Zhang, Haiying Wang, Weixin Wang

    Published 2017-01-01
    “…The volatile impurities were quantitatively analyzed with trichloromethane as extraction solvent and n-hexane as internal standard by using gas chromatography (GC) coupled with solvent extraction, and the chromatographic conditions, quantitative methods, and extraction conditions were systematically investigated in detail. …”
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  12. 112

    Stereospecific Assay of (R)- and (S)-Goitrin in Commercial Formulation of Radix Isatidis by Reversed Phase High-Performance Liquid Chromatography by Lixing Nie, Zhong Dai, Shuangcheng Ma

    Published 2017-01-01
    “…In this study, an enantioselective method based on reversed phase chromatography was developed for the assay of (R, S)-goitrin enantiomers. …”
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  13. 113

    High performance liquid chromatography for simultaneous determination of xipamide, triamterene and hydrochlorothiazide in bulk drug samples and dosage forms by Abd El-Hay Soad S., Hashem Hisham, Gouda Ayman A.

    Published 2016-03-01
    “…A novel, simple and robust high-performance liquid chromatography (HPLC) method was developed and validated for simultaneous determination of xipamide (XIP), triamterene (TRI) and hydrochlorothiazide (HCT) in their bulk powders and dosage forms. …”
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  14. 114

    Optimization and Validation of Thermal Desorption Gas Chromatography-Mass Spectrometry for the Determination of Polycyclic Aromatic Hydrocarbons in Ambient Air by Iñaki Elorduy, Nieves Durana, José Antonio García, María Carmen Gómez, Lucio Alonso

    Published 2018-01-01
    “…Thermal desorption (TD) coupled with gas chromatography/mass spectrometry (TD-GC/MS) is a simple alternative that overcomes the main drawbacks of the solvent extraction-based method: long extraction times, high sample manipulation, and large amounts of solvent waste. …”
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  15. 115

    Analysis of the Dissipation Behavior of Defoliants in Cotton Fiber during Field and Scouring Process Using Liquid and Gas Chromatography by Mingbo Ma, Pirah Ayaz, Wanhui Jin, Munir Hussain, Wenlong Zhou

    Published 2019-01-01
    “…This study was carried out to evaluate the dissipation behavior of four commonly used defoliants tribufos, diuron, thidiazuron, and ethephon in cotton fiber during field stage and also in cotton scouring using liquid chromatography and gas chromatography. Field trials showed that although all the defoliants dissipated fast, however, the fiber from the tribufos and ethephon applied field had considerable potential to exceed the maximum residue limit when the fiber was harvested at common intervals after application of defoliants. …”
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  16. 116

    Analyses of Total Alkaloid Extract of Corydalis yanhusuo by Comprehensive RP × RP Liquid Chromatography with pH Difference by Xiaodong Wei, Hongling Shen, Lijun Wang, Qingyan Meng, Wenjie Liu

    Published 2016-01-01
    “…A comprehensive two-dimensional (2D) reverse phase (RP) liquid chromatography (LC) method is developed for alkaloid analysis. …”
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  17. 117

    Compound-Specific Chlorine Isotope Analysis of Organochlorine Pesticides by Gas Chromatography-Negative Chemical Ionization Mass Spectrometry by Jing Zhang, Shenghua Liu, Jianye Gui, Xiaoya Li, Guochen Qi

    Published 2021-01-01
    “…To overcome the mentioned problems, a novel method has been developed for the CSIA-Cl of eight organochlorine pesticides using gas chromatography-negative chemical ionization mass spectrometry (GC-NCI-qMS) in this study. …”
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    Fast Simultaneous Determination of Eight Sudan Dyes in Chili Oil by Ultra-High-Performance Supercritical Fluid Chromatography by Yunjia Yang, Jing Zhang, Jie Yin, Yi Yang

    Published 2019-01-01
    “…A rapid and simple ultra-high-performance supercritical fluid chromatography (UHPSFC) with photodiode array (PDA) method was developed and validated for simultaneous determination of eight Sudan dyes in chili oil. …”
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    Article