Showing 1 - 20 results of 2,199 for search '"chromatography"', query time: 0.06s Refine Results
  1. 1

    Explicit relation between thin film chromatography and column chromatography conditions from statistics and machine learning by Hao Xu, Wenchao Wu, Yuntian Chen, Dongxiao Zhang, Fanyang Mo

    Published 2025-01-01
    “…This study explicitly elucidates how chemists use thin-layer chromatography (TLC) to determine column chromatography (CC) conditions, employing statistical analysis and machine learning techniques. …”
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    Article
  2. 2

    Criterion for the Quantitative Assessment of Ideal Conditions in Chromatography by A. V. Larin

    Published 1989-12-01
    “…Practical recommendations on the choice and assessment of conditions to verify the measurement of adsorption isotherms and on the calculation of chromatographic processes in accordance with the theory of ideal chromatography are given.…”
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  3. 3

    Gas chromatography-mass spectrometry in the taxonomy of Miscanthus by N. M. Slynko, N. V. Burmakina, O. M. Potseluyev, S. Yu. Kapustyanchik, G. Yu. Galitsin, T. N. Goryachkovskaya, L. V. Kuybida, S. V. Shekhovtsov, S. E. Peltek, V. K. Shumny

    Published 2020-01-01
    “…We found 153 substances and identified 143 of them in extracts of eleven Miscanthus plants by gas chromatography-mass spectrometry (GC-MS). These substances can be grouped into alkanes (20 compounds), fatty acids (34), phenols (13), sterols (18) toсopherols (8), norterpenoids (12), and phytols (13), as well as their derivatives. …”
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    Article
  4. 4

    Analysis of Tocopherols by High Performance Liquid Chromatography by B. Edison

    Published 2009-01-01
    “…: Gas chromatography is the key technique for organic components and also for tocopherols analysis. …”
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    Article
  5. 5

    Alkaloids Profiling of Fumaria capreolata by Analytical Platforms Based on the Hyphenation of Gas Chromatography and Liquid Chromatography with Quadrupole-Time-of-Flight Mass Spectrometry by María del Mar Contreras, Noureddine Bribi, Ana María Gómez-Caravaca, Julio Gálvez, Antonio Segura-Carretero

    Published 2017-01-01
    “…Two analytical platforms, gas chromatography (GC) coupled to quadrupole-time-of-flight (QTOF) mass spectrometry (MS) and reversed-phase ultrahigh performance liquid chromatography (UHPLC) coupled to diode array (DAD) and QTOF detection, were applied in order to study the alkaloid profile of Fumaria capreolata. …”
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  6. 6

    Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography by Cui-ting Liu, Min Zhang, Ping Yan, Hai-chan Liu, Xing-yun Liu, Ruo-ting Zhan

    Published 2016-01-01
    “…Volatile components of ZTPs extracted by ethyl acetate with an ultrasonic method were analyzed by gas chromatography mass spectrometry (GC-MS). Twenty-two components were identified, accounting for 78.884% of the total components of volatile oil. …”
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    Detection of n-nitrosamine compounds by gas chromatography in sausages by İbrahim PİRİNÇCİ, H. Ahmet ACET, Bekir BATI

    “…NPyr was found in all that samples in the result of the analysis made by using gas chromatography with flame-ionization- detector. Whereas, NDMA, NDEA and NPip were determined in about 95% of samples analysed.…”
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    Thermodynamic Insights into the Separation of Carotenoids in Reversed-Phase Liquid Chromatography by Nicola Marchetti, Pier Paolo Giovannini, Martina Catani, Luisa Pasti, Alberto Cavazzini

    Published 2019-01-01
    “…., lycopene and β-carotene), was investigated in reversed-phase liquid chromatography with the aim of thermodynamic analysis. …”
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  11. 11

    Determination of tetracycline residues in animal tissues by thin-layer chromatography by H. Ahmet ACET, Ömer DEMET, Bünyamin TRAŞ

    “…This study was evaluated to determine by thin layer chromatography of their residues to !be found in animal tissues of tetracycline group antibiotics, which were widely used in Veterinary field.…”
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  12. 12

    Determination of Ivermectin in Medicated Feeds by Liquid Chromatography with Fluorescence Detection by Konrad Pietruk, Piotr Jedziniak

    Published 2013-01-01
    “…The fluorescent derivatives were analysed by liquid chromatography method using C8 column. The isocratic conditions using acetonitrile, methanol, water, and tetrahydrofuran were applied. …”
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  13. 13

    Inverse Gas Chromatography in the Examination of Modified Highly Dispersed Silicas by A. Voelkel, A. Krysztafkiewicz, T. Grześkowiak

    Published 1999-03-01
    “…Modified silicas were characterized by means of inverse gas chromatography at infinite dilution through the estimation of their dispersive and acid–base characteristics. …”
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  14. 14

    Characterization of aroma compounds of Pu-erh ripen tea using solvent assisted flavor evaporation coupled with gas chromatography-mass spectrometry and gas chromatography-olfactometry by Bei Wang, Qing Meng, Lin Xiao, Ruili Li, Chunhai Peng, Xueli Liao, Jingna Yan, Honglin Liu, Guanhua Xie, Chi-Tang Ho, Huarong Tong

    Published 2022-05-01
    “…In the present study, volatile compounds from Pu-erh ripen tea were extracted using a solvent assisted flavor evaporation (SAFE) and analyzed with a gas chromatography-mass spectrometry (GC-MS) and a gas chromatography olfactometry (GC-O). …”
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    Identification of Pyrrolizidine Alkaloids in Senecio Plants by Liquid Chromatography-Mass Spectrometry by An-Jing Lu, Yan-Liu Lu, Dao-Peng Tan, Lin Qin, Hua Ling, Chang-Hong Wang, Yu-Qi He

    Published 2021-01-01
    “…Based on the fragmentation regularity, the hepatoxic PAs and nonhepatoxic PAs were characterized by liquid chromatography-mass spectrometry (LC-MS). The detailed structures of PAs in five Senecio plants were identified based on tandem mass spectrometry (MS/MS) spectrum and chemical research information. …”
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  20. 20

    Determination of Morphine and Codeine in Human Urine by Gas Chromatography-Mass Spectrometry by Xiaoqian Zhang, Mengchun Chen, Gaozhong Cao, Guoxin Hu

    Published 2013-01-01
    “…A sensitive and selective gas chromatography-mass spectrometry (GC-MS) method was developed and validated for the determination of morphine and codeine in human urine. …”
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    Article