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Śniegocki T, Samorek E, Sell B, Krajewska W. Development of a method for the determination of sedatives in bovine and porcine urine and kidneys by liquid chromatography-tandem mass spectrometry. J Vet Res 2024; 68:137-145. [PMID: 38525223 PMCID: PMC10960330 DOI: 10.2478/jvetres-2024-0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/04/2024] [Indexed: 03/26/2024] Open
Abstract
Introduction Sedatives have been used for a long time as animal tranquillisers to prevent stress and weight loss during their transportation. The proper determination of these substances in food of animal origin is essential for consumer safety. Material and Methods A 1 g portion of pig or cow urine or homogenised kidney was mixed with acetonitrile, sodium chloride was added, and the solution was further mixed and then centrifuged. The supernatant was transferred to a new centrifuge tube with primary and secondary amine, octadecylsilane and ZrO2, and mixed rapidly. The filtered solution was evaporated under a nitrogen stream. The residue was dissolved in 200 μL of acetonitrile, centrifuged with filters and then transferred to vials. Samples were analysed by high-performance liquid chromatography-tandem mass spectrometry. Results The decision limit for confirmation was calculated at 2.5 μg kg-1 for all sedatives with relative standard deviation repeatability and reproducibility below 20%. Conclusion The validation results showed that this method meets the pertinent EU criteria for such methods and is suitable for sedative analysis in urine and kidney matrices.
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Affiliation(s)
- Tomasz Śniegocki
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 21-100 Puławy, Poland
| | - Elżbieta Samorek
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 21-100 Puławy, Poland
| | - Bartosz Sell
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 21-100 Puławy, Poland
| | - Weronika Krajewska
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 21-100 Puławy, Poland
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Shi P, Xia B, Qin Y, Zhou Y. Removal of multiple lipids from human plasma using a hydroxyl-functionalized covalent organic framework aerogel as a new sorbent. Mikrochim Acta 2023; 190:222. [PMID: 37184589 DOI: 10.1007/s00604-023-05770-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/29/2023] [Indexed: 05/16/2023]
Abstract
A hydroxyl-functionalized covalent organic framework aerogel COFTHB-TAPB-aerogel was designed and prepared as an adsorbent for the removal of multiple lipids from human plasma. The applications of 1,3,5-tris(4'-hydroxy-5'-formylphenyl)benzene (THB) and 1,3,5-tris(4-aminophenyl)benzene (TAPB) as monomers, DMSO/mesitylene (v/v, 4/1) as reaction solvent, and n-propylamine as reaction regulator endow COFTHB-TAPB-aerogel with good adsorption performance for multiple lipids. The morphology, phase purity, specific surface area, pore size, surface charge, and stability of COFTHB-TAPB-aerogel were characterized. Adsorption thermodynamics and adsorption kinetics studies showed that COFTHB-TAPB-aerogel had high equilibrium adsorption capacities (> 15913 mg g-1) and fast adsorption equilibrium (≤ 10 s) for the four model lipids tested. COFTHB-TAPB-aerogel had good reusability with the removal of the model lipids being still more than 91% after 10 use cycles. The sample pretreatment conditions and adsorbent amounts used in lipids removal experiments were optimized. Under the optimized conditions, the method of ultra-high performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) using COFTHB-TAPB-aerogel as solid-phase extraction sorbent was validated with negligible matrix effects (0.4-3.0%) and good accuracy (86.7-110%) and was applied to determine 20 amino acids in human plasma samples from healthy individuals and gastric adenocarcinoma (GA) patients. The established method has been proved to have good application potential for the removal of multiple lipids in human plasma to reduce the matrix effects and improve the accuracy of clinical LC-MS analysis.
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Affiliation(s)
- Peiyu Shi
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Chengdu Institute of Food Inspection, Chengdu, 611135, China
| | - Bing Xia
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Yongping Qin
- Clinical Pharmacology Lab, Clinical Trial Center, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Yan Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.
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Zheng X, Qin Y, Meng X, Jin Z, Fan L, Wang J. Synthesis of polyethylene glycol functional bonded silica gel for selective recognition and separation of α-cyclodextrin. J Chromatogr A 2021; 1639:461917. [PMID: 33524932 DOI: 10.1016/j.chroma.2021.461917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 11/25/2022]
Abstract
In this work, we for the first time synthesized the polyethylene glycol (PEG) bonded silica gel via KH-560 as a silane coupling reagent for column chromatography by a solid/liquid surface continuous reaction method. The molecular interaction, structure, morphology, and thermostability was characterized by fourier transform infrared spectroscopy (FTIR), elemental analysis (EA), scanning electronic microscope (SEM) and thermogravimetric analysis (TGA). Given that PEG is capable to self-assemble with α-CD, the PEG bonded silica gel was used as packing of column chromatography to achieve the selective separation of α-cyclodextrin (α-CD) at room temperature and atmospheric pressure. The bonded silica gel column could realize the effective separation of α-CD in the enzymatic hydrolysis mixture, which provides support for industrial separation of α-CD.
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Affiliation(s)
- Xinying Zheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu Province, 214122, China
| | - Yang Qin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu Province, 214122, China
| | - Xiaobing Meng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu Province, 214122, China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu Province, 214122, China
| | - Liuping Fan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu Province, 214122, China
| | - Jinpeng Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, 214122, China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu Province, 214122, China.
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