RSC Advances
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2025
·Vol. 15
·期 11
·8111-8120
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IF 4.6
Hao Zhang,Weihao Ma,Chunyu Qiang,Jiayuan Nie,Ling Ma,Yawei Zhang,Ke Wang
In our research, an emerging magnetic covalent organic framework (Fe3O4@SiO2–BD–DADB-COF) was formulated through Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), etc. Several parameters affecting the extraction process were refined. Accordingly, a novel method of determining 15 macrolides (MALs) in honey and water was established through the Fe3O4@SiO2–BD–DADB-COF as a magnetic solid-phase extraction (MSPE) adsorbent and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). In consequence, the standard curves for the 15 MALs exhibited an exceptional linearity from 0.1 to 200 μg L−1, and the correlation coefficients (R2) varied from 0.9990 to 0.9999. The recoveries fell between 70.01% and 115.56%, with the relative standard deviations (RSDs) being below 9.93% (n = 5). The detection limits reached 0.001–0.075 μg L−1 with the quantification limits being 0.004–0.228 μg L−1. Ultimately, the method was excellently applied to the analysis of MALs in honey and water.
研究领域:
分析化学
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环境科学
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食品科学
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DOI
PubMed
高影响因子
MOLECULES
·
2018
·Vol. 23
·期 5
·1110
·
IF 3.098
Shi Shen,Jingbo Wang,Qin Zhuo,Xi Chen,Tingting Liu,Shuang-Qing Zhang
Phenolics and flavonoids in honey are considered as the main phytonutrients which not only act as natural antioxidants, but can also be used as floral markers for honey identification. In this study, the chemical profiles of phenolics and flavonoids, antioxidant competences including total phenolic content, DPPH and ABTS assays and discrimination using chemometric analysis of various Chinese monofloral honeys from six botanical origins (acacia,Vitex, linden, rapeseed,AstragalusandCodonopsis) were examined. A reproducible and sensitive ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was optimized and validated for the simultaneous determination of 38 phenolics, flavonoids and abscisic acid in honey. Formononetin, ononin, calycosin and calycosin-7-O-β-d-glucoside were identified and quantified in honeys for the first time. Principal component analysis (PCA) showed obvious differences among the honey samples in three-dimensional space accounting for 72.63% of the total variance. Hierarchical cluster analysis (HCA) also revealed that the botanical origins of honey samples correlated with their phenolic and flavonoid contents. Partial least squares-discriminant analysis (PLS-DA) classification was performed to derive a model with high prediction ability. Orthogonal partial least squares-discriminant analysis (OPLS-DA) model was employed to identify markers specific to a particular honey type. The results indicated that Chinese honeys contained various and discriminative phenolics and flavonoids, as well as antioxidant competence from different botanical origins, which was an alternative approach to honey identification and nutritional evaluation.Keywords:UPLC-MS/MS;antioxidant competence;phenolic;flavonoid;chemometrics;monofloral honey
研究领域:
植物学
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食品科学
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分析化学
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DOI
PubMed
高影响因子
ANALYTICAL LETTERS
·
2025
·
IF 1.8
Yating Liu,Li Tian,Yuan Gao,Zhonghai Tang,Yuzhu Xiong
An attapulgite-multi-walled carbon nanotube (ATP-CNTs) composite material was synthesized to enhance the QuEChERS method. When coupled with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), an accurate, rapid, and reliable analytical method was established for the determination of multiple pesticide residues in tea. The ATP-CNTs purification agent was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Pesticides in tea were extracted under ultrasonication using water and acetonitrile, followed by purification with ATP-CNTs. Key experimental parameters—including extraction solvent, extraction time, soaking time, soaking water temperature, adsorbent combination ratio, and adsorbent amount—were systematically optimized. Under optimal conditions, the method’s limits of detection (LOD) and quantification (LOQ) were 1.05–4.11 μg/kg and 3.49–13.69 μg/kg, respectively. Recovery experiments at three spiked concentration levels yielded average recoveries ranging from 75.2% to 114.3%, with relative standard deviations (RSDs) between 2.3% and 13.8%. The results demonstrate that this method is simple, accurate, rapid, and suitable for the detection of relevant pesticide residues in tea.
研究领域:
分析化学
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环境科学
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食品科学
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纳米技术
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DOI
高影响因子
Natural Product Communications
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2020
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IF 0.468
Na Li,Ting Lv,Jie Pan,Chunhua Liu,Jia Sun,Yanyu Lan,Aimin Wang,Yongjun Li,Yonglin Wang,Yuan Lu
A simple, rapid, and selective ultra-performance liquid chromatography-mass spectrometry (MS)/MS method was established to investigate tissue distribution of 6 polyphenolic compounds of Polygonum orientale L. extract in normal and myocardial ischemia (MI) model rat tissues, including isoorientin, orientin, vitexin, quercitrin, astragalin, and protocatechuic acid. An Agilent Eclipse Plus C18 column was used. The mobile phase consisted of acetonitrile and water, both with 0.1% formic acid. Quantification was performed in negative ion multiple reaction monitoring mode. All the analysts had good linearity with r ≥ 0.9912. Accuracy ranged from 12.49% to −13.98% for the 6 compounds; within-day variation (precision) was ≤9.98% and interday precision was ≤11.88%. Extraction recovery of the analysts ranged from 80.55% to 99.92%; the matrix was 81.00%–98.73%. The analyst preparations were stable throughout. The 6 compounds were rapidly distributed in various tissues after oral administration, without accumulation over 12 hours. Compared with normal rats, distributions of 6 compounds in the heart, liver, spleen, lung, kidney, brain, stomach, and intestine in MI model rats were different from those in the normal group. The study provides an insight for further research of P. orientale L.
研究领域:
药理学
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分析化学
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心脏病学
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DOI
高影响因子
MOLECULES
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2022
·Vol. 27
·期 20
·6952
·
IF 4.927
Liqiong Sun,Zhijuan Tang,Minxin Wang,Jun Shi,Yajuan Lin,Tiefeng Sun,Zhilu Zou,Zebin Weng
With the abuse of antibiotics, bacterial antibiotic resistance is becoming a major public healthcare issue. Natural plants, especially traditional Chinese herbal medicines, which have antibacterial activity, are important sources for discovering potential bacteriostatic agents. This study aimed to develop a fast and reliable method for screening out antimicrobial compounds targeting the MRSA membrane fromPsoralea corylifoliaLinn. seed. A UPLC-MS/MS method was applied to identify the prenylated flavonoids in major fractions from the extracts ofPsoralea corylifoliaLinn. seed. The broth microdilution method was used to determine the minimum inhibitory concentrations (MICs) of different fractions and compounds. The morphological and ultrastructural changes of MRSA were determined by scanning electron microscopy (SEM). The membrane-targeting mechanism of the active ingredients was explored by membrane integrity assays, membrane fluidity assays, membrane potential assays, ATP, and ROS determination. We identified eight prenylated flavonoids inPsoralea corylifoliaLinn. seed. The antibacterial activity and mechanism studies showed that this type of compound has a unique destructive effect on MRSA cell membranes and does not result in drug resistance. The results revealed that prenylated flavonoids inPsoralea corylifoliaLinn. seeds are promising candidates for the development of novel antibiotic agents to combat MRSA-associated infections.Keywords:methicillin-resistantStaphylococcus aureus;Psoralea corylifoliaLinn. seed;prenylated flavonoids;UPLC-MS/MS;bacterial membrane
研究领域:
微生物学
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药理学
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中药学
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DOI
PubMed
高影响因子
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
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2026
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IF 2.2
Tianze Xin,Yuqing Xu,Bixian Han,Zuoqing Li,Quansheng Liu,Hanxiang Li,Bingqiang Xu
Pleuropterus multiflorus and P. angulatus are two morphologically similar taxa widely used in traditional Chinese medicine but often confused in the herbal market. Their taxonomic relationship remains controversial, and chemical profiling provides complementary evidence for clarifying species boundaries. In this study, an untargeted UPLC–MS/MS approach combined with molecular networking (MN) and multivariate statistical analysis was employed to compare the leaf metabolomes of P . multiflorus and P. angulatus . A total of 46 flavonoid metabolites were structurally annotated, and 16 differential metabolites were identified as key contributors to their separation. MN analysis revealed that both taxa shared the same flavonol core structures, but differed markedly in modification diversity. P. angulatus exhibited a higher abundance of acylated flavonol glycosides and several biflavonoid dimers, whereas P . multiflorus was dominated by non-acylated glycosides. Eight previously unreported structural analogues were also annotated through MN-guided analysis. These compositional and structural differences, observed under common garden conditions, suggest a genetic basis for the metabolic variation. Although limited to the studied accessions, these findings provide preliminary chemophenetic evidence supporting the differentiation of P. angulatus from P. multiflorus . The integration of UPLC–MS/MS and MN demonstrates strong potential for resolving chemical variation among closely related taxa and contributes to improved species authentication, quality control, and conservation of medicinal plant resources.
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高影响因子
Analytical Methods
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2025
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IF 2.6
Ling Sui,Qiuying Dong,Yudie Lu,Jinqiang Yan,Shuo Zhang,Jinmei Shi,Lixin Yang,Hongmei Shi
During the metabolic process of benzene and its derivatives in living organisms, a series of metabolic products are produced. These metabolites have significant application value in environmental monitoring, occupational health and disease diagnosis. The detection of specific metabolites of benzene series substances can accurately reflect the true level of exposure. In this study, a method based on UPLC-MS/MS was developed for the determination of eight benzene biometabolites in urine. The target substances in urine samples were extracted using HLB columns, separated by gradient elution with HSS T3 liquid chromatography columns, and detected by tandem mass spectrometry. The results showed good linearity in the linear range with correlation coefficients greater than 0.999 for all eight substances.The recoveries were all in the range of 80%~120%, and the detection limits were lower than 0.011 ng/ml.The method is simple to operate, the accuracy and precision meet the detection requirements, and can be applied to the detection of real samples.
研究领域:
环境监测
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职业健康
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毒理学
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分析化学
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DOI
PubMed
高影响因子
Chinese Medicine
·
2020
·Vol. 15
·期 1
·1-14
·
IF 2.96
Yang Yi-Yao,Wu Zhao-Yu,Xia Fang-Bo,Zhang Hao,Wang Xu,Gao Jian-Li,Yang Feng-Qing,Wan Jian-Bo
Background The dry root and rhizome of Ligusticum chuanxiong Hort., or Chuanxiong, has been used as a blood-activating and stasis-removing traditional Chinese medicine for 1000 years. Our previous studies have shown the inhibitory activity on platelet and thrombin (THR) of Chuanxiong. THR and factor Xa (FXa) play significant roles in the coagulation cascade and their inhibitors are of valuable in the treatment of thromboembolic diseases. The aim of the present study is to screen THR and FXa inhibitors from Chuanxiong.Methods Four extracts [ethyl acetate (EA), butanol (BA) and remained extract (RE) from 75% ethanol extract, and water extract (WE)] of Chuanxiong were prepared, and their THR/FXa inhibitory activities were assessed in vitro. Following silica-gel column chromatography (SC), the active EA extract and BA extract was further partitioned, respectively. Their active fractions (EA-SC1 to EA-SC5; BA-SC1 to BA-SC5) were obtained and analyzed by LC–MS. After modeling by the principal component analysis (PCA) and orthogonal partial least squares discriminate analysis (OPLS-DA), the specific marker compounds were predicted and identified. Their enzyme inhibitory was assessed in vitro and interactions with THR/FXa were investigated by molecular docking analysis.Results Chuanxiong EA extract showed strong activity against THR and BA extract was more effective in inhibiting FXa activity, and their fractions exhibited obvious difference in enzyme inhibitory activity. Furthermore, marker compounds a–h were predicted by PCA and OPLS-DA, and their chemical structures were identified. Among them, senkyunolide A, Z-ligustilide, ferulic acid and senkyunolide I (IC50 was determined as 0.77 mM) with potential THR inhibitory activity, as well as isochlorogenic acid A with FXa inhibitory activity were screened out. It was found that the four components could interact with the active site of THR, and the binding energy was lower than − 5 kcal/mol. Isochlorogenic acid A were bound to the active site of FXa, and the binding energy was − 9.39 kcal/mol. The IC50 was determined as 0.56 mM.Conclusion sTHR/FXa inhibitory components in different extracts of Chuanxiong were successfully characterized by the method of enzyme inhibition activity assays with ultra performance liquid chromatography-quadrupole time of flight mass spectrometry-based multivariate statistical analysis.
研究领域:
中药学
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生物化学
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药理学
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DOI
PubMed
高影响因子
BIOMEDICAL CHROMATOGRAPHY
·
2022
·Vol. 37
·期 1
·e5525
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IF 1.911
Yuhao Fu,Ying Li,Yinling Ma,Xueru He,Xuejiao Xun,Yanjun Cui,Liju Fan,Zhanjun Dong
Almonertinib was included in the first-line treatment of non-small cell lung cancer with EGFR T790M mutations by the Chinese Society of Clinical Oncology in 2021. Considering that immunocompromised lung cancer patients are prone to opportunistic fungal infections, and most triazole antifungal drugs are moderate or strong inhibitors of CYP3A4, this study was conducted to develop and validate an accurate and rapid ultra-performance liquid chromatography tandem mass spectrometry method for quantifying almonertinib in plasma and for investigating the pharmacokinetic changes of almonertinib caused by voriconazole and fluconazole in rats. After liquid–liquid extraction with tert -butyl methyl ether, an XSelect HSS T3 column (2.1 × 100 mm, 2.5 μm, Waters) was used for the chromatographic separation of almonertinib and sorafenib-D 3 (internal standard). The analytes were detected using an AB Sciex Triple Quad 5,500 mass spectrometer in the positive ionization mode. The method exhibited great linearity (0.5–200 ng/ml, r > 0.997) and stability under the established experimental conditions. All validation experiments were in accordance with the guidelines, and the results were all within the acceptable limits. This method was successfully applied to the researches of pharmacokinetics and drug interactions for almonertinib in rats. Voriconazole and fluconazole significantly altered the pharmacokinetic profiles of almonertinib and increased the systemic exposure of almonertinib in rats to different degrees, but further human trials should be conducted to validate the results.
研究领域:
药理学
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肿瘤学
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分析化学
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DOI
PubMed
高影响因子
BIOMEDICAL CHROMATOGRAPHY
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2022
·Vol. 36
·期 4
·e5313
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IF 1.911
Fu-Qin He,Yan-Jun Li,Zhao-Hui Guo,Juan Chen
Cyclocarya paliurus is an edible and medicinal plant exhibiting significant hypoglycemic effect. However, its active components are still unclear and need further elucidation. In this research, the active components of the leaves of C. paliurus responsible for the α -glucosidase inhibitory activity were screened and identified based on a spectrum–effect relationship study in combination with ultra-performance liquid chromatography tandem mass spectrometry (UPLC–MS/MS) analysis. The 70% ethanol eluate fraction of the leaves of C. paliurus with the strongest α -glucosidase inhibitory activity was obtained after extraction and purification with macroporous resin. Their chromatographic fingerprints (15 batches) were established by UPLC analysis and 32 common peaks were specified by similarity analysis. Their IC 50 values for α -glucosidase inhibition were measured by an enzymatic reaction. Several multivariate statistical analysis methods including hierarchical cluster analysis, principal component analysis, partial least square analysis and gray relational analysis were applied to explore the spectrum–effect relationship between common peaks and IC 50 values, and the chromatographic peaks making a large contribution to efficacy were screened out. To further elucidate the active components of leaves of C. paliurus , the 70% ethanol eluate fraction was characterized by UPLC–MS/MS analysis, and 10 compounds were identified. This study provides a valuable reference for further research and development of hypoglycemic active components of C. paliurus .
研究领域:
药理学
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分析化学
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植物科学
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DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
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2023
·
IF 4.1
Congyang Ding,Caihui Guo,Lingzhi Fang,Yajing Li,Zhi Wang,Zhanjun Dong
Vericiguat (VER) is a novel soluble guanylate cyclase stimulator treating symptomatic chronic heart failure (HF), and it is a substrate of both transporters P-glycoprotein and breast cancer resistance protein (BCRP). Astragaloside IV (ASIV) is the main active ingredient in Radix Astragali (Huangqi), a traditional Chinese medicine widely used for HF treatment in China. ASIV's effect on the protein expression of P-glycoprotein and BCRP has been observed, its impact on VER metabolism remain uncertain. In the present study, male Sprague-Dawley rats were administered with 20 mg/kg ASIV and 1 mg/kg VER to study their pharmacokinetics. Blood samples were subject to liquid-liquid extraction, and riociguat was employed as the internal standard (IS). The analytical method involved a C18 column (XSelect® HSS T3 column, 2.1 × 100 mm, 2.5 μm) with a mobile phase of 0.1% formic acid and acetonitrile for gradient elution. The flow rate of the mobile phase was set at 0.2 mL/min, and 5 µL of the sample was used for analysis. The positive ion multi-response monitoring mode was utilized with a transition of m/z 427.4→109.1 for VER and m/z 423.3→109.1 for the IS. The method exhibited good linearity within the concentration range of 0.1 to 300 ng/mL ( r = 0.9987), and all the validation processes were conducted in accordance with the requirements of biological analysis. The pharmacokinetic results revealed that ASIV did not significantly alter the main parameters of VER, except for C max , which decreased by 33.2% (P < 0.05). Overall, our study successfully established a selective, sensitive and repeatable ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) analysis for detecting VER in rat plasma.
研究领域:
药理学
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分析化学
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中药学
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2017
·Vol. 52
·期 4
·897-905
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IF 1.64
Fangfang Zeng,Zhiwei Ge,Jarukitt Limwachiranon,Li Li,Simin Feng,Yansheng Wang,Zisheng Luo
Summary The content of bioactive phytochemicals, antioxidant activity and tyrosinase inhibitory activity of the hydroalcoholic extracts of Rosa roxburghii were determined. Yellow fruits of cultivated R. roxburghii showed the highest phenolic content (154.81 mg gallic acid g −1 ), and the green fruits of wild R. roxburghii showed higher content of flavonoid and triterpenoid. Rosa roxburghii fruits from different cultivars and maturity stages all demonstrated as good antioxidant agents and tyrosinase inhibitors, with IC50 value about twice of the positive standard in the DPPH assay and triple of the standard in the tyrosinase inhibitory activity assay. Nineteen compounds, mainly ellagic acids and its derivatives, flavonoids and their glycosides were identified by UPLC-Triple-TOF/MS analysis. As the first study of bioactive phytochemicals of R. roxburghii by UPLC-MS, the present research may provide valuable information for fulfilling the potential of R. roxburghii in the functional food area.
研究领域:
植物学
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食品科学
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药理学
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DOI
高影响因子
危险品化学品经营许可证（带存储）