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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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–84. 47 Schmitz EM, Boonen K, van den Heuvel DJ, et al. Determination of dabigatran, rivaroxaban and apixaban by ultra-performance liquid chromatography – tandem mass spectrometry (UPLC-MS/MS) and

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Acta Alimentaria
Authors:
M. Kumšta
,
T. Helmová
,
K. Štůsková
,
M. Baroň
,
B. Průšová
, and
J. Sochor

(UPLC) coupled to triple quadruple mass spectrometry (TQ/MS) has been used to determine biogenic amines in Macedonian red and white wines ( Tashev et al., 2017 ). The present study investigated the effect of wine-producing technologies on the

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Acta Chromatographica
Authors:
Weijian Ye
,
Wei Sun
,
Ruijie Chen
,
Zhe Wang
,
Xiao Cui
,
Hui Zhang
,
Shuyi Qian
,
Qi Zheng
,
Yangfeng Zhou
,
Jiafeng Wan
,
Jiali Xu
,
Xianqin Wang
, and
Yunfang Zhou

chromatography (UPLC) [ 13 ], liquid chromatography–mass spectrometry (LC–MS) [ 14 ], and LC–MS/MS [ 15 – 17 ]. Feng et al. developed a UPLC approach for determination of GAL in rat plasma with a lower limit of quantification (LLOQ) of 10 ng/mL using liquid

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.3%, and RSDs were less than 9.7% for serum samples, indicating the developed method was reliable for routine monitoring of real rat serum samples. Table 2. The recoveries and RSDs at three different concentrations of ligustrazine in serum samples by PMME/UPLC

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Table 4. The optimized compound dependent MRM parameters and transitions for each analyte in the UPLC–ESI–MS/MS analysis

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[UPLC–MS]), with the inevitable usage of hazardous solvents as eluents in UPLC. In this work, a MSPD–GC method for extraction and determination of 11 preservatives in cosmetics and pharmaceuticals was developed. It is simple and quick and does

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filtered through a 0.22 μm microporous filter and stored at −20 °C until assayed. Instruments and conditions LC-MS/MS analysis was performed on an Agilent ultra-high performance liquid chromatography 1290 UPLC system with a Waters UPLC BEH C18 column (1

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Acta Veterinaria Hungarica
Authors:
József Lehel
,
Petra Vöröskői
,
András Palkovics
,
Csaba Szabó
,
Lívia Darnay
,
Péter Budai
,
Péter Laczay
, and
Katalin Lányi

purchased from VWR International (Debrecen, Hungary). Analytical method The pesticide content of the sample was measured by UPLC-MS/MS method (Shimadzu LCMS-8030 Plus, Shimadzu Corporation, Kyoto

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chromatography [LC], high-performance liquid chromatography [HPLC], or ultra-performance liquid chromatography [UPLC]) coupled to different detectors including ultraviolet (UV), fluorescence (FL), electrochemical detection (ECD), mass spectrometry (MS), and

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