Showing 321 - 340 results of 969 for search '"liquid chromatography"', query time: 0.05s Refine Results
  1. 321

    Sweat Cortisol and Cortisone Determination in Healthy Adults: UHPLC-MS/MS Assay Validation and Clinical Application by Syed N. Alvi, Kafa Abuhdeeb, Muhammad M. Hammami

    Published 2022-01-01
    “…A simple and effective ultra-high-performance liquid chromatography assay linked to tandem mass spectrometry (UHPLC-MS/MS) for measuring cortisol and cortisone levels in human sweat has been developed and validated. …”
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    Article
  2. 322

    A Novel Metal-Organic Framework Composite, MIL-101(Cr)@MIP, as an Efficient Sorbent in Solid-Phase Extraction Coupling with HPLC for Tribenuron-Methyl Determination by Xinyuan Zheng, Junping Wang

    Published 2019-01-01
    “…A highly efficient and selective method based on core–shell molecularly imprinted polymers (MIL@MIP) and high performance liquid chromatography (HPLC) was developed and firstly used for the trace analysis of tribenuron-methyl (TBM) in complicated matrices. …”
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    Article
  3. 323

    Characteristics, Phytochemical Analysis and Biological Activities of Extracts from Tunisian Chetoui Olea europaea Variety by Ines Khlif, Karim Jellali, Thomas Michel, Maria Halabalaki, Alexios Leandros Skaltsounis, Noureddine Allouche

    Published 2015-01-01
    “…High performance liquid chromatography (HPLC) and high performance thin layer chromatography (HPTLC) confirmed the presence of phenolic compounds in the studied extracts.…”
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    Article
  4. 324

    Design and Enantiopure Synthesis of(R)-2-((2-Oxooxazolidin-5-yl)methyl)isoindoline-1,3-dione: A Key Precursor to Build 2-Oxazolidinone Class of Antibacterial Agents by T. Rajesh, P. Suryanarayana Reddy, M. Manidhar, M. Vijaya Lakshmi, G. Madhusudhan

    Published 2011-01-01
    “…The enantiopurity of the obtained (R)-2-((2-oxooxazolidin-5-yl)methyl) isoindoline-1,3-dione is established using chiral high performance liquid chromatography (HPLC) i.e. enantiomeric excess (ee) as 100%. …”
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    Article
  5. 325

    Quality Evaluation of Saposhnikovia divaricata (Turcz.) Schischk from Different Origins Based on HPLC Fingerprint and Chemometrics by Yuqiu Chen, Zhefeng Xu, Siying Gao, Tao Zhang, Changbao Chen

    Published 2022-01-01
    “…A valid and encyclopedic evaluation method for assessing the quality of Saposhnikovia divaricata has been set up based on the analysis of a high-performance liquid chromatography (HPLC) fingerprint combined with the cluster analysis (CA), principal component analysis (PCA), partial least square discriminant analysis (PLS-DA), and similarity analysis. 15 peaks of the common model were obtained and used for the similarity analysis, CA analysis, PCA analysis, and PLS-DA analysis. …”
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    Article
  6. 326

    Phenolic Profile, Antioxidant Activity, and Enzyme Inhibitory Properties of Limonium delicatulum (Girard) Kuntze and Limonium quesadense Erben by A. Ruiz-Riaguas, G. Zengin, K.I. Sinan, C. Salazar-Mendías, E.J. Llorent-Martínez

    Published 2020-01-01
    “…The characterization and quantitation of individual phytochemicals were performed with liquid chromatography with diode array and electrospray-tandem mass spectrometry detection. …”
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    Article
  7. 327

    Optimization of Enzymatic Hydrolysis by Protease Produced from Bacillus subtilis MTCC 2423 to Improve the Functional Properties of Wheat Gluten Hydrolysates by Hari Prasath Rajendhran, Vinoth Kumar Vaidyanathan, Swethaa Venkatraman, Pothiyappan Karthik

    Published 2024-01-01
    “…The percentage of free amino acids obtained by protease-mediated hydrolysates increased significantly compared to the unhydrolyzed wheat, which was observed by high-performance liquid chromatography. These findings suggest that wheat gluten hydrolysates hold promising potential as functional and nutritional food ingredients in the food industry, owing to their enhanced functionalities and potential antioxidant and antidiabetic properties.…”
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    Article
  8. 328

    Inter-Laboratory Validation of Method to Determine Residual Enrofloxacin in Chicken Meat by Joo Hee Chung, Kun Cho, Seongnyeon Kim, So Hyeon Jeon, Jeoung Hwa Shin, Jueun Lee, Yun Gyong Ahn

    Published 2018-01-01
    “…Liquid-liquid extraction combined with a clean-up procedure based on solid-phase extraction followed by a liquid chromatography-tandem mass spectrometric method was used by three individual laboratories. …”
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    Article
  9. 329

    Development and Validation of a Reversed-Phase HPLC Method for the Estimation of Zolpidem in Bulk Drug and Tablets by E. Konoz, A. H. Mohsen Sarrafi, R. Abdolahnejad, M. Bahrami-Zonoz

    Published 2013-01-01
    “…In the present study an isocratic reversed-phase high-performance liquid chromatography method was developed for the estimation of zolpidem in bulk drug and pharmaceutical dosage forms. …”
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    Article
  10. 330

    Analysis of the HPLC Fingerprint and QAMS for Sanhuang Gypsum Soup by Yi Peng, Minghui Dong, Jing Zou, Zhihui Liu

    Published 2018-01-01
    “…A valid and encyclopaedic evaluation method for assessing the quality of Sanhuang Gypsum Soup (SGS) has been set up based on analysis of high-performance liquid chromatography (HPLC) fingerprint combined with the quantitative analysis of multicomponents by single marker (QAMS) method, hierarchical cluster analysis (HCA), and similarity analysis. 20 peaks of the common model were obtained and used for the similarity analysis and HCA analysis. …”
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    Article
  11. 331

    Influencing factors of clinical efficacy of roxadustat among hemodialysis patients by Wenhui Wu, Nan Hu, Xiurong Li, Jia Di, Hua Zhou, Hongyan Niu, Min Yang

    Published 2024-12-01
    “…The plasma trough concentrations of roxadustat were measured using liquid chromatography–tandem mass spectrometry (LC–MS/MS). …”
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    Article
  12. 332

    Determination of Phosphatidylcholine in Artificial Crude Soybean Oil by Biosensor Based on Horseradish Peroxidase/Choline Oxidase-Modified Glassy Carbon Electrode by WANG Donghua, WANG Xu, WANG Yuting, GAO Shan, WANG Weining, YANG Fuming, YU Dianyu

    Published 2024-12-01
    “…Good correlation was observed between the results of the biosensor and those of high performance liquid chromatography (HPLC) with a correlation coefficient (r) of 0.992 9. …”
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    Article
  13. 333

    Microbial and Chemical Characteristics of Doogh (Iranian Fermented Milk Drink) by Sara Mohamadi, Vahid Mofid, Tayebeh Zeinali, Anosheh Rahmani, Parisa Sadighara, Leila Peivasteh-Roudsari

    Published 2021-01-01
    “…Preservative determination was performed by reverse phase high-performance liquid chromatography with UV detection (RV-HPLC-UV). Results. 0.1% of the total analyzed samples was above the permitted level of Iranian standard for SB (0%), while PS was not detected in any of them. …”
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    Article
  14. 334

    Rapid Determination of Pachymic Acid Content by Near-Infrared Spectroscopy by Jie Lu, Changqin Li, Lijun Liu, Wangjing Chai, Yabin Hou, Changyang Ma

    Published 2022-01-01
    “…During the research, a total of 108 batches of Poria samples from different producing regions were used, while their corresponding pachymic acid contents by high-performance liquid chromatography (HPLC) were adopted as reference. These samples were divided randomly into calibration sets for model establishment and validation sets for model validation. …”
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    Article
  15. 335

    Comparing extraction conditions for favorable yield of lutein and zeaxanthin from distiller’s grains by Emily Aicher, Abigail S. Engelberth

    Published 2025-01-01
    “…Extraction solvent, solid loading, and material type were varied, and the resins were processed using high-performance liquid chromatography (HPLC) to determine the carotenoid content for each condition. …”
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    Article
  16. 336

    Determination of Antioxidant 264 in the Butyl Rubber Stopper and the Compatibility with Recombinant Potent Antitumor and Antivirus Protein Injection by Min Zhao, Xianhui Li, Di Zhang, Longshan Zhao

    Published 2020-01-01
    “…High-performance liquid chromatography (HPLC) was used for the determination of the migration of antioxidant 264 to Novaferon. …”
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  17. 337
  18. 338

    Determination of the Phenolic Profile and Antioxidant Activity of Leaves and Fruits of Spanish Quercus coccifera by L. Molina-García, R. Martínez-Expósito, M. L. Fernández-de Córdova, E. J. Llorent-Martínez

    Published 2018-01-01
    “…Forty-one compounds were characterized using high-performance liquid chromatography with electrospray multistage mass spectrometry (HPLC-ESI-MSn) with an ion trap mass spectrometer. …”
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    Article
  19. 339

    LC-MS/MS Quantification of Tramadol and Gabapentin Utilizing Solid Phase Extraction by Pappula Nagaraju, Balaji Kodali, Peda Varma Datla, Surya Prakasarao Kovvasu

    Published 2018-01-01
    “…An accurate, highly sensitive, and precise method for quantitative analysis of tramadol (TMD) and gabapentin (GBP) by high performance liquid chromatography and tandem mass spectrometry in human plasma was proposed and validated successfully using venlafaxine and pregabalin as internal standards (ISTDs), respectively. …”
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    Article
  20. 340

    Analysis of 31 Hydrazones of Carbonyl Compounds by RRLC-UV and RRLC-MS(/MS): A Comparison of Methods by Soraya de M. Ochs, Maíra Fasciotti, Annibal D. Pereira Netto

    Published 2015-01-01
    “…In this work, the separation of 31 carbonyl compounds (CC) in their 2,4-dinitrophenylhydrazones form was optimized by rapid resolution liquid chromatography in 9 minutes and simultaneously detected by ultraviolet and mass spectrometry with an APCI(−) as ionization source. …”
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    Article