Academic literature on the topic 'UPLC–PDA'

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Journal articles on the topic "UPLC–PDA"

1

Patel, Prinesh N., D. Rajesh Kumar, S. Gananadhamu, and R. Srinivas. "Characterization of the stress degradation products of tolvaptan by UPLC-Q-TOF-MS/MS." RSC Advances 5, no. 27 (2015): 21142–52. http://dx.doi.org/10.1039/c4ra16644b.

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TVT was subjected to forced degradation under hydrolysis, oxidation, dry heat and photolysis conditions and the degradation products (DPs) formed have been characterized through UPLC-PDA and UPLC-Q-TOF-MS/MS studies.
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Zhao, Xiangsheng, Deli Wang, Hongmei Luo, and Meihua Yang. "Simultaneous determination of three alkaloids in Huperzia serrata by UPLC-PDA and UPLC-Q/TOF-MS." Analytical Methods 7, no. 5 (2015): 1770–76. http://dx.doi.org/10.1039/c4ay02775b.

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Wu, Xuejin, Lingyan Jia, Jiafan Wu, et al. "Simultaneous Determination and Quantification of Triterpene Saponins from Camellia sinensis Seeds Using UPLC-PDA-QTOF-MS/MS." Molecules 24, no. 20 (2019): 3794. http://dx.doi.org/10.3390/molecules24203794.

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Saponins in the Camellia sinensis seeds have a broad spectrum of biological properties and application potentials. However, up to now, no chromatographic methods have been developed to provide full fingerprinting and quality assurance for these saponins. This research aimed to develop a novel method to tentatively identify and quantify saponins in C. sinensis seeds by ultra-high-performance liquid chromatography coupled with photo-diode array detector and quadrupole time-of-flight mass spectrometry (UPLC-PDA-QTOF-MS/MS), and compare it with the classic vanillin-sulfuric acid assay. Fifty-one t
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Patrón-Vázquez, Jesús, Lizzie Baas-Dzul, Nelly Medina-Torres, et al. "The Effect of Drying Temperature on the Phenolic Content and Functional Behavior of Flours Obtained from Lemon Wastes." Agronomy 9, no. 9 (2019): 474. http://dx.doi.org/10.3390/agronomy9090474.

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Lemon processing generates thousands of tons of residues that can be preserved as flours by thermal treatment to obtain phenolic compounds with beneficial bioactivities. In this study, the effect of different drying temperatures (40, 50, 60, 70, 80, 90, 100 and 110 °C) on the Total Phenolic Content (TPC), antioxidant and antimicrobial activities of phenolic compounds present in Citrus. lemon (L.) Burn f waste was determined. Identification and quantification of phenolic compounds were also performed by UPLC-PDA and UPLC-ESI-MS analysis. Eriocitrin (19.79–27.29 mg g−1 DW) and hesperidin (7.63–9
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Wu, Zhi Jiang, and Ying Peng. "Analysis of Penicillin Antibiotics in Cosmetics Using Ultra Performance Liquid Chromatography." Advanced Materials Research 233-235 (May 2011): 87–90. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.87.

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In this study, the utral-performance liquid chromatography (UPLC) method with UV-PDA was utilized to develop a rapid, sensitive reliable method for analysis of 5 penicillin antibiotics in cosmetics productions which the presence of these penicillin in commercial cosmetics samples is prohibited. The samples was prepared by liquid-liquid extraction and then the analyses was carried out on UPLC-PDA. The chromatographic column used was Acquity UPLCTM BEH C18 (100 mm ×2.1 mm,1.7μm) and the mobile phase is Acetonitrile and potassium dihydrogen phosphate(PBS) Buffer solution pH 5.5. Chromatographic s
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Güzel, Remziye, Zehra Ceren Ertekin, and Erdal Dinç. "A New Application of PARAFAC Model to UPLC Dataset for the Quantitative Resolution of a Tri-Component Drug Mixture." Journal of Chromatographic Science 59, no. 4 (2021): 361–70. http://dx.doi.org/10.1093/chromsci/bmaa119.

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Abstract In the presented work, a three-way analysis of ultra-performance liquid chromatography-photodiode array (UPLC-PDA) dataset was performed by parallel factor analysis (PARAFAC) for quantitatively resolving a ternary mixture containing paracetamol and methocarbamol with indapamide selected as an internal standard in their co-eluted chromatographic conditions. Paracetamol and methocarbamol were quantified in the working range between 3–24 and 5–50 μg/mL by applying PARAFAC decomposition to UPLC-PDA data array obtained under unresolved chromatographic peak conditions. To compare the experi
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Zhu, Fenxia, Yonggang Zhao, Xiaobin Jia, Yingjie Wei, Zhenhai Zhang, and Gulinaer Wulazihan. "Study on Fingerprint of Crude and ProcessedEpimediumby UPLC-PDA-MS." Acta Chimica Sinica 70, no. 05 (2012): 635. http://dx.doi.org/10.6023/a1105271.

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Ma, Pei, Kun Luo, Yong Peng, et al. "QUALITY CONTROL OFPOLYGONUM CUSPIDATUMBY UPLC-PDA AND RELATED STATISTICAL ANALYSIS." Journal of Liquid Chromatography & Related Technologies 36, no. 20 (2013): 2844–54. http://dx.doi.org/10.1080/10826076.2012.723096.

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9

Bairwa, Khemraj, Amit Srivastava, and Sanjay Madhukar Jachak. "Quantitative Analysis of Boeravinones in the Roots ofBoerhaavia Diffusaby UPLC/PDA." Phytochemical Analysis 25, no. 5 (2014): 415–20. http://dx.doi.org/10.1002/pca.2509.

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10

Zhang, Shuang, Zong-ping Zheng, Mao-mao Zeng, et al. "A novel isoflavone profiling method based on UPLC-PDA-ESI-MS." Food Chemistry 219 (March 2017): 40–47. http://dx.doi.org/10.1016/j.foodchem.2016.09.120.

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