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(Kala SG, et al., 2021) [ 9 ] HPLC No 10–2,000 35 100 2022 (Yang X, et al., 2022) [ 7 ] UPLC-MS/MS No 25–8,000 4 100 2023 (Fukuda N, et al., 2023) [ 10 ] HPLC No 10–5,000 15 100 2023 (Yasu T, et al., 2023) [ 11 ] HPLC No 0.25–10 22.3 50 2023 (De Gregori

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. The previously developed methods [ 5–11 ] provide assasys in bulk and pharmaceutical forms, they are not suitable for plasma assays and their sensitivity is not enough for bioanalytical studies. Other MS methods; LC-MS/MS [ 12 , 13 , 15–17 ] and UPLC

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technique based on ultra-high pressure liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS) was developed and validated for the detection of GABA and glutamic acid in human plasma to put an end for further research into their health effects

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chromatography (UPLC) [ 14 ], quantitation and stability of ALA in cosmetic creams by high-performance liquid chromatography (HPLC) [ 15 ] evaluation of thermal and photo stability of ALA in encapsulated form [ 16 ] quantification of ALA with pulse amperometric

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LLE with Et 2 O from plasma. UPLC system equipped with Tunable UV (TUV) detector and C 18 column (L × i.d., 100 × 2.1, 1.7 μm) using MeCN-phosphate buffer flowing at 0.5 mL min −1 with gradient composition in 07 min was successful for separation and

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samples were injected onto an Acquity UPLC BEH 50 mm × 2.1 mm, 1.7 μm (Waters) column and eluted at the temperature of 30 °C at the flow rate of 0.3 mL min −1 . The MS analysis was performed in the positive ionization mode, except for Chloroethyl

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Acta Chromatographica
Authors:
Nabil N. Al-Hashimi
,
Rand O. Shahin
,
Amjad H. El-Sheikh
,
Malak J. Jibreel
,
Nada A. Alsakhen
,
Abdelrahim M. Alqudah
,
Muna K. Oqal
, and
Jafar I. Abdelghani

. ; Ye , M. ; Mao , L. ; Zhang , S. ; Zheng , S. Association between oxidative DNA damage and risk of colorectal cancer: sensitive determination of urinary 8-hydroxy-2′-deoxyguanosine by UPLC-MS/MS Analysis . Sci. Rep. 2016 , 6 , 1 – 9 . 4

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. Photocatalytic reactions were performed with the use of Degussa P25 particles and UVA irradiation source (15 min). All studies were performed by an ultra-performance liquid chromatography–quadrupole time-of-flight mass spectrometry (UPLC–Q-TOF MS) system. The

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, X.-Y. ; Sun , H. ; Dong , L. ; Jiang , Z.-P. ; Shi , Y. Identification of the bioactive components of Banxia Xiexin Decoction that protect against CPT-11-induced intestinal toxicity via UPLC-based spectrum-effect relationship analyses . J

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isolated from Tripterygium Wilfordii in our laboratory. The structures were identified by nuclear magnetic resonance and UPLC-Q-TOF-MS/MS, and which were consistent with the literature [ 8 , 9 ]. The purities were more than 99% by HPLC. Preparation of

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