Talanta Open
·
2025
·
IF 3.7
Xiao-Chen Huang,Shou-Lian Wei,Su Yao,Yu-Tong Lin,Jin-Kui Ma
This study developed a novel dummy molecularly imprinted polymer (DMIP) via emulsion polymerization for rapid, sensitive, and simultaneous detection of four fluoroquinolone (FQ) antibiotic residues in tilapia. The DMIP, coupled with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), was thoroughly characterized for its structure and adsorption properties. Optimized parameters revealed a rough surface morphology with aggregated spherical structures (400-500 nm). Compared to a non-imprinted polymer (NIP), the DMIP exhibited faster adsorption kinetics and enhanced selectivity towards enrofloxacin and related FQ compounds. The DMIP-UPLC-MS/MS method achieved satisfactory recoveries (77-105%) for the four target FQs in tilapia, with intra-day and inter-day relative standard deviations of 3.6-9.2% and 4.0-11.7%, respectively. Method detection limits (LODs) ranged from 0.02-0.06 µg/kg, while quantification limits (LOQs) ranged from 0.06-0.2 µg/kg. This novel method demonstrates excellent potential for highly sensitive and selective monitoring of trace FQ residues in aquatic food products.
研究领域:
分析化学
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食品安全
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Chinese Journal of Natural Medicines
·
2018
·
IF 1.991
Hao QIAN,Fang-Jun YU,Dan-Yi LU,Bao-Jian WU,Xing-Wang ZHANG,Huan WANG,Zhi-Guo MA
Poliumoside is representative of phenylethanoid glycosides, which are widely found in many plants. Poliumoside is also regarded as the main active component of Callicarpa kwangtungensis Chun (CK), though its oral bioavailability in rat is extremely low (0.69%) and its in vivo and in vitro metabolism has not yet been systematically investigated. In the present study, an ultra performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF-MS) method was employed to identify the metabolites and investigate the metabolic pathways of poliumoside in rat after oral administration 1.5 g·kg –1 of poliumoside. As a result, a total of 34 metabolites (30 from urine, 17 from plasma, and 4 from bile) and 9 possible metabolic pathways (rearrangment, reduction, hydration, hydrolyzation, dehydration, methylation, hydroxylation, acetylation, and sulfation) were proposed in vivo . The main metabolite, acteoside, was quantified after incubated with rat intestinal bacteria in vitro . In conclusion, the present study systematically explored the metabolites of poliumoside in vivo and in vitro , proposing metabolic pathways that may be significant for further metabolic studies of poliumoside.
研究领域:
药理学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Xiaomin Yang,Mengjie Zhang,Anastasios Koidis,Xiaodong Liu,Chuangzhong Guo,Zhenlin Xu,Xiaoqun Wei,Hongtao Lei
Currently, the identification and quantification of complex adulteration of high-value vegetable oils are still challenging. In this study, the extreme vertex design method was adopted to design representative multivariate adulterated camellia oil samples. Thereafter, 11 characteristic lipid species were identified by considering the statistically significant difference and categorical contribution. A discriminant method and linear regression model were established based on 11 key lipids. The accuracy rate of the model was 100 %, which could correctly discriminate the camellia oil with an adulteration ratio as low as 2.5 %. The root mean square error (RMSE) of the regression equation was close to 0, and the coefficient of determination (R 2 P ) was 0.9054. This method has been successfully applied to commercially available samples for validation purposes, detecting 27.3 % of camellia oil adulteration. Overall, the results indicate that the discriminating method and content prediction model can provide a potential strategy for authentication of multivariate vegetable oils.
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Phytochemistry Letters
·
2020
·
IF 1.459
Yin Zhang,Jianfeng Shi,Qianqian Fei,Yiping Huang,Fenxia Zhu,Jing Wang,Daoquan Tang,Bin Chen
The present study aimed to investigate the effects of steamed notoginseng single-flavored medicine, herb pairs, compound medicine on anemia rats induced by N-acetyl phenyl hydrazine (APH) to explore the underlying hematinic regulation mechanisms. Rats were randomly divided into seven groups: control group (CG); model group (MG); positive control group (PCG); steamed notoginseng group (SNG); ginseng group (GG); herbal pair group (HPG) and compound prescription group (CPG). Day 12 of the experiment, the blood routine examination of the rats was measured. At the same time, the rats' plasma and urine samples were collected. An Ultra-performance Liquid Chromatography-Quadrupole-Time-of-Flight / Mass Spectrometry (UPLC-Q-TOF/MS) with unsupervised principal component analysis (PCA) and supervised partial least squares discriminant analysis (PLS-DA) combined analytical method was established for metabolomics study of steamed notoginseng . Compared with the CG, red blood cell (RBC) and hemoglobin (Hb) levels in the MG were significantly lower (P < 0.01). The results of blood routine examination show that the model of the rats with blood deficiency syndrome have successfully modelled. Compared with the MG, steamed notoginseng can significantly increase the RBC level of rats (P < 0.01), indicating that steamed notoginseng has the blood tonic effect. The related indicators of each administration group showed a good trend of returning to normal. 44 potential biomarkers for hemolytic anemia were screened from plasma and urine samples. Compared with the CG, there were down-regulation seven biomarkers in plasma of the MG, such as retinol, l -valine and arachidonic acid, and 14 biomarkers up-regulated such as protoporphyrin IX and nicotinamide; 28 metabolites such as proline, histidine, phenylalanine, l -arginine and l -tyrosine were up-regulated in urine of the MG. The metabolic level of biomarkers could be changed to a normal state after the rats were given steamed notoginseng , herb pairs, and compound prescriptions. It is presumed that steamed notoginseng plays a role in blood enriching through 12 metabolic pathways, including valine, leucine and isoleucine biosynthesis, phenylalanine, tyrosine and tryptophan biosynthesis, retinol metabolism and so on.
研究领域:
药理学
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代谢组学
·
中药学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2024
·
IF 3.1
HongXia Chen,Hao Zhou,Zhiwen Qi,Xingying Xue,ChengZhang Wang
Toxicodendron vernicifluum bark has been used for many years as a component in foods and as a traditional herbal medication. Unfortunately, the presence of urushiols, which induce allergies, limits its application. This study used a vortex-blending matrix solid-phase dispersion microextraction technique to extract urushiols from Toxicodendron vernicifluum bark. HPLC was used to evaluate the amounts of the extracted urushiols (15:0, 15:1, 15:2, and 15:3). The modified magnetic adsorbent was prepared through an in situ coprecipitation method and characterized using a variety of techniques. The optimized extraction conditions are as follows: using magnetic Zeolite Socony Mobil-Five as an adsorbent, a 1:2 sample/adsorbent ratio, 2.5 min of vortex-blending time, 4 mL of 0.1% (V/V) trifluoroacetic acid-methanol as the elution solvent and 8 min of ultrasound time. There was good linearity and high repeatability in the method. Furthermore, the limits of detection for the urushiols ranged from 0.20 to 0.50 μg/mL. Under the optimized conditions, 50 compounds were identified by ultra high performance liquid chromatography and quadrupole time-of-flight mass spectrometry. These compounds included 8 phenolic acids, 9 monomeric urushiols, 11 urushiol dimers, 10 other components, and 11 flavonoids. The suggested approach, which has the advantages of few stages and high extraction efficiency over existing extraction procedures, is a potentially useful method for obtaining and evaluating urushiols in raw materials or extracts.
研究领域:
植物化学
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分析化学
·
药物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2025
·
IF 3.1
Yi Qin,Xiaojun Guan,Shichao Zhang,Zijie Zhang,Chenrong Huang,Liyan Miao
Almonertinib and anlotinib are tyrosine kinase inhibitors used to treat malignant tumors, with their combination currently applied to non-small cell lung cancer (NSCLC) patients. This study aimed to develop a simple and rapid UPLC–MS/MS method for simultaneously detecting almonertinib, its active metabolite HAS-719, and anlotinib in human plasma. The analytes were separated on a Waters HSST3-C18 column following protein precipitation with acetonitrile. Mass detection was performed on a Waters TQS triple quadrupole mass spectrometer under positive electrospray ionization mode. The MRM ions were m/z 526.5→71.96 for almonertinib, m/z 512.4 → 455.41 for HAS-719, m/z 408.16→ 339.03 for anlotinib and m/z 518.5→372.26 for d6-HAS-000719 (internal standard). Method validation followed FDA guidelines and Chinese Pharmacopoeia regulations, demonstrating acceptable accuracy, precision, matrix effects, recovery, and stability. The method showed excellent linearity over 0.5–500 ng/mL for all three analytes, with correlation coefficients (r²)≥ 0.99. The validated UPLC-MS/MS method successfully monitored almonertinib and anlotinib concentrations in clinical, particularly for NSCLC patients.
研究领域:
药理学
·
临床医学
·
肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICAL BIOCHEMISTRY
·
2024
·
IF 2.6
Di Lu,Xinyue Zheng,Hongyu Xue,Jiansong You,Lei Yin,Meiyun Shi
The aim of this work was to develop a fast, simple, and reliable UPLC-MS 3 method for the sensitive detection of acetochlor in biological samples. In MS 3 mode, the ion transition m/z 270.1 → 224.1→148.1 was chosen for quantification with butachlor as the internal standard. In the UPLC system, separation was performed on a UPLC column (2.1 × 50 mm ID, 1.7 μm) with 0.1 % FA in water and acetonitrile as mobile phases . After simple protein precipitation via acetonitrile, the method was well validated with good linearity (0.5–20 ng/mL, r > 0.995), accuracy (−3.70 %-2.98 %), and precision (<15 %). The selectivity and sensitivity were improved obviously in MS 3 mode than that in MRM mode. The developed UPLC-MS 3 method was successfully applied to the cellular pharmacokinetics study of acetochlor in MCF-7 cells.
研究领域:
分析化学
·
药理学
·
细胞生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2019
·
IF 2.983
Ting Tai,Huan Zhou,Ting Zhu,Yu-Meng Jia,Jin-Zi Ji,Yi-Fei Li,Qiong-Yu Mi,Hong-Guang Xie
Vicagrel is a promising novel antiplatelet drug. However, the quantification of vicagrel in plasma is currently unavailable since it is liable to be hydrolyzed in plasma by esterases. In this study, an optimized strategy was developed and validated to stabilize vicagrel, 2-oxo-clopidogrel (thiolactone metabolite), and H4 (active thiol metabolite) before quantification of the analytes, such as addition of citric acid (for plasma acidification) and NaF (a non-specific esterase inhibitor) to inhibit esterase activity, immediate addition of a thiol-alkylating reagent MPB into blood samples to derivatize H4 for the formation of stable H4 derivative (i.e., MP-H4), use of the anticoagulant K 2 EDTA to minimize the conversion of 2-oxo-clopidogrel to H-endo, and keeping the analytes at 4 °C or on wet ice to minimize degradation of the analytes when processed and analyzed. The stability was measured as percent of each analyte remained in plasma samples after their storage for 4 h at 4 °C or in blood samples after 1 h at 4 °C. The results indicated that stability of vicagrel was increased significantly in stabilized plasma or blood samples compared with non-stabilized controls for rats and humans, respectively, and that the stability of 2-oxo-clopidogrel was increased to a certain extent. In contrast, MP-H4 formed was stable in plasma immediately after thorough mixture of MPB with blood. We conclude that the above strategy is useful for improving the stability of vicagrel, 2-oxo-clopidogrel, and H4 in rat or human plasma, and that vicagrel and its two major metabolites can be quantified accurately and simultaneously.
研究领域:
药理学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Lingping Hu,Yin Zhu,Hongwei Zhang,Xiaomei Zhang,Yujin Li,Qian Yao,Qiang Cai,Yaqin Hu
Food fraud is common in the tuna industry because of the economic benefits involved. Ensuring the authenticity of tuna species is crucial for protecting both consumers and tuna stocks. In this study, GC-Q-TOF and UPLC-Q/Orbitrap mass spectrometry-based metabolomics were used to investigate the metabolite profiles of three commercial tuna species (skipjack tuna, bigeye tuna and yellowfin tuna). A total of 22 and 77 metabolites were identified with high confidence using GC-Q-TOF and UPLC-Q/Orbitrap mass spectrometry , respectively. Further screening via chemometrics revealed that 38 metabolites could potentially serve as potential biomarkers. Hierarchical cluster analysis showed that the screened metabolite biomarkers successfully distinguished the three tested tuna species. Furthermore, a total of 27 metabolic pathways were identified through enrichment analysis based on the Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathways.
研究领域:
食品科学
·
代谢组学
·
生物信息学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2024
·
IF 4
Shuai Zhuang,Huihui Ming,Wenjie Yu,Liping Luo
Royal jelly (RJ) is a highly perishable food during storage. However, the quality of RJ is hard to evaluate due to its complex and variable compositions. Nanoliter electrospray ionization mass spectrometry (nano-ESI-MS) is an emerging direct mass spectrometry method suitable for rapid analysis of complex food components and food quality. In this study, we investigated the freshness and metabolite changes of RJ stored at 4 °C and 25 °C using nano-ESI-MS and verified the results with UPLC-Q/TOF-MS. The nano-ESI-MS identified 20 compounds and quantified 9 metabolites with high stability and reproducibility. Multivariate analysis of the nano-ESI-MS data distinguished RJ of different freshness and suggested 45–60 and 7 days as the freshness threshold of RJ stored at 4 °C and 25 °C, respectively. The multivariate analysis of UPLC-Q/TOF-MS data output similar results to that of nano-ESI-MS. The relative abundance changes of metabolites identified by UPLC-Q/TOF-MS were approximately consistent with the quantification results of nano-ESI-MS, indicating the reliability of nano-ESI-MS in monitoring RJ freshness. This study proved the potential of nano-ESI-MS as a rapid method for monitoring RJ freshness and thus promoted the quality control of RJ during production.
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2019
·
IF 3.571
Yu-Ying Zhang,Yu-Xi Liu,Zheng Zhou,Da-Yong Zhou,Ming Du,Bei-Wei Zhu,Lei Qin
Reversed-phase ultrahigh-performance-liquid chromatography–mass spectrometry (UPLC–MS) is the typical method for the lipidomic analysis of most of biological samples, which was rarely used for the comprehensive lipidomic analysis of marine shellfish. Thus, a range of columns, modifiers, and resuspension solvents were evaluated using UPLC-electrospray ionization-quadrupole time-of-flight-MS to facilitate the ionization efficiency in both the positive and negative electrospray ionization (ESI(+)/(−)) modes for abalone lipids. Optimal lipidomic coverage was acquired with 10 mM ammonium formate in both ESI(+)/(−) modes. The selected resuspension solvents also influenced ionization efficiency through the matrix effect, and resuspension in methanol enhanced the signal intensities by reducing ion suppression. Because of the higher glycerophospholipid content in shellfish, bridged ethylene hybrid C8 columns showed clear advantages over charged surface hybrid C18 columns. A series of glycerophospholipids, lyso-glycerophospholipids, glycerolipids, and fatty acids in different shellfish can be annotated and semiquantified in one injection by the optimized method.
研究领域:
分析化学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2022
·
IF 7.425
Qiaoyu Liu,Jianjun Lin,Wenhong Zhao,Menglin Lei,Juan Yang,Weidong Bai
Dry-cured mackerel is favored by consumers for its suitable salty flavor. Herein, the dynamic changes of volatile compounds and lipids in the mackerel, and the lipidomics based on UPLC-Orbitrap/MS technique during dry-cured processing were investigated. The results showed that endogenous lipases activities in dry-cured mackerel decreased. The dry-cured processing of mackerel had significant effects on its lipid classes and content. The contents of Arachidonic acid (C20:4n6), docosapentaenoic acid (C22:5n3), linoleic acid (LA, C18:2n6), alpha-linolenic acid (C18:3n3), eicosatrienoic acid (C20:3n3) and docosahexaenoic acid (DHA, C22:6n3) increased during dry-cured processing. A total of 38 kinds of volatile compounds were detected in the dry-cured mackerel, 12 of which were derived from fatty acid oxidation. Among 30 lipid metabolites (FC ≥ 2 and VIP > 2), phosphatidylethanolamine (PE, 19:0/22:6) accounted for the highest content, and its difference between three stages was the most obvious. Glycerophospholipid and sphingolipid metabolisms were the most important metabolic pathways involved in dry-cured processing.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）