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Cheng X, Xia Y, Ji Q, Ji Q, Li H, Guo J, Li S, Yang S, Zhang L, He H. Occurrence and risk of iodinated X-ray contrast media in source and tap water from Jiangsu province, China. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130399. [PMID: 36403453 DOI: 10.1016/j.jhazmat.2022.130399] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/31/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Microcontaminants in the water environment have received increasing attention due to their adverse effects on human health and wildlife. However, iodinated X-ray contrast media (ICM), a type of microcontaminants, have not yet been systematically documented in source and tap water. This study investigated ICM in water samples via a sampling activity from 25 drinking water sources and their corresponding 30 household taps in south-central Jiangsu Province, China. The total concentrations of ICM ranged from 14.2 to 138.5 ng/L in source water and 3.7 to 101.3 ng/L in tap water, respectively. The calculated average water treatment efficiency to remove ICM is 38.3% with large variation under different processes (ranging from 7.3% to 75.7%), which implied that ICM could not be effectively removed using current treatment technologies. By integrating other ICM into the predominant compound iohexol with relative potency factors, the health risks of total ICM through water consumption were assessed using the Monte Carlo simulation. The results concluded that the risk of ingesting ICM through tap water was not a major health concern for adults, teens, or children in the study area. Nevertheless, due to the lack of long-term toxicity data relevant for humans for ICM, this risk may be underestimated, which requires further research.
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Affiliation(s)
- Xinying Cheng
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Yubao Xia
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Qiuyi Ji
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Qingsong Ji
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Huiming Li
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Jiehong Guo
- Masonic Cancer Center, University of Minnesota at Twin Cities, Minneapolis, Minnesota 55455, USA; Department of Civil, Environmental, and Geospatial Engineering, Michigan Technological University, Michigan 49931, USA
| | - Shiyin Li
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Shaogui Yang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China
| | - Limin Zhang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China; Green Economy Development Institute, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, P.R. China
| | - Huan He
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, P.R. China; College of Ecological and Resource Engineering, Fujian Provincial Key laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, Fujian 354300, P.R. China.
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Cheng X, Ji Q, Sun D, Zhang J, Chen X, He H, Li S, Yang S, Zhang L. A comparative study on adsorption behavior of iodinated X-ray contrast media iohexol and amidotrizoic acid by magnetic-activated carbon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:45404-45420. [PMID: 35147873 DOI: 10.1007/s11356-022-19127-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
As persistent and ubiquitous contaminants in water, iodinated X-ray contrast media (ICM) pose a non-negligible risk to the environment and human health. In this study, we investigated the adsorption behavior of two typical ICM compounds, iohexol (IOH) and amidotrizoic acid (DTZ), on magnetic activated carbon. Theoretical investigations, using density functional theory, identified the molecule structures and calculated the molecular diameters of IOH (1.68 nm) and DTZ (1.16 nm), which revealed that ICM could be adsorbed by mesopores and larger micropores. Therefore, magnetic activated carbon with a porous structure was prepared by the co-precipitation method to investigate the adsorption mechanism of IOH and DTZ. MAC--5 (magnetic activated carbon with a theoretical iron oxide content of 37%) showed the best adsorption ability for both IOH and DTZ, with maximum adsorption capacities of 86.05 and 43.00 mg g-1, respectively. Adsorption kinetics and isotherm models were applied to explore the mechanisms involved, and the effects of solution pH, initial concentration, temperature, ionic strength, and natural organic matter were also investigated. The pore filling effect, π-π stacking, hydrogen bonding, and electrostatic interaction, were found to be the main adsorption mechanisms. The co-adsorption data showed that competition may occur in ICM coexisting environments. Interestingly, the used MAC--5 could be successfully regenerated and its adsorption efficiency did not decrease significantly after five cycles, indicating that it is a promising adsorbent for ICM. The results from this study provide some new insights for the treatment of water containing ICM.
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Affiliation(s)
- Xinying Cheng
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Qiuyi Ji
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Dunyu Sun
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Jinghua Zhang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Xianxian Chen
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Huan He
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
- College of Ecological and Resource Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, Fujian, 354300, People's Republic of China
| | - Shiyin Li
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Shaogui Yang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Limin Zhang
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu, 210023, People's Republic of China.
- Green Economy Development Institute, Nanjing University of Finance and Economics, Nanjing, Jiangsu, 210023, People's Republic of China.
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Hu CY, Zhu YY, Xu B, Zhang TY, Lin YL, Xiong C, Wang QB, Huang DD, Xu L. Fe3O4 catalytic ozonation of iohexol degradation in the presence of 1-hydroxybenzotriazole: Performance, transformation mechanism, and pathways. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Cheng X, Ji Q, Wang X, Guo J, Chen X, He H, Yu N, Li S, Yang S, Zhang L. Determination of ten iodinated X-ray contrast media by solid-phase extraction and ultra-high performance liquid chromatography coupled with high-resolution orbitrap mass spectrometry. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Yang J, Sun Q, Huang C, Qin S, Han S, Huo Z, Li Y, Sun X, Chen J. 3-Aminophenylboronic acid-mediated aggregation of gold nanoparticles for colorimetric sensing of iohexol in environmental and biological samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120004. [PMID: 34098478 DOI: 10.1016/j.saa.2021.120004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/13/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
Iohexol (IHO), as one of iodinated X-ray contrast, is often used as not only a chemical marker for tracking wastewater contamination in aquatic environment, but also an ideal glomerular filtration rate marker for explorating kidney disease. To these aims, it is important to establish reliable, fast, and cheap methods to detect IHO in environmental and biological samples. This work describes for the first time the development of a selective, sensitive and reliable colorimetric sensing assay for the fast determination of IHO in environmental and biological samples based on 3-aminophenylboronic acid (3-APBA) mediated aggregation of gold nanoparticles (AuNPs). In this approach, 3-APBA can assemble on the AuNPs surface through electrostatic interaction between its amino groups with the negatively charged citrate stabilizer of AuNPs to form AuNP@3-APBA. Subsequently, the aggregation and visual color change of the assembled AuNP@3-APBA are induced by the covalent reaction between boronic acid ligands of 3-APBA and cis-diols of IHO. The developed assay presented a very simple operating procedure and a rapid analysis time of around 10 min. The developed assay also exhibited good selectivity and a low limit of detection (LOD) of 0.005 mM for detecting IHO. Moreover, the developed assay showed comparable accuracy and precision to the high-performance liquid chromatography-diode array detector (HPLC-DAD) method when used for the rapid determination of IHO in river water and human urine samples. The recoveries of IHO at three spiking levels were in the range of 91.5-106.3% with relative standard deviation (RSD) values below 6.39%.
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Affiliation(s)
- Jiajia Yang
- College of Materials Science and Engineering, Hebei University of Engineering, 19 Taiji Road, Handan 056038, China
| | - Qingye Sun
- College of Materials Science and Engineering, Hebei University of Engineering, 19 Taiji Road, Handan 056038, China
| | - Chaonan Huang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, China
| | - Shenjun Qin
- College of Materials Science and Engineering, Hebei University of Engineering, 19 Taiji Road, Handan 056038, China
| | - Shuai Han
- College of Materials Science and Engineering, Hebei University of Engineering, 19 Taiji Road, Handan 056038, China
| | - Zhongchao Huo
- Second Department of Oncology, Affiliated Hospital of Hebei University of Engineering, 81 Congtai Road, Handan 056002, China
| | - Yun Li
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
| | - Xiaoli Sun
- Department of Chemistry, Lishui University, 1 Xueyuan Road, Lishui 323000, China
| | - Jiping Chen
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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Kanu AB. Recent developments in sample preparation techniques combined with high-performance liquid chromatography: A critical review. J Chromatogr A 2021; 1654:462444. [PMID: 34380070 DOI: 10.1016/j.chroma.2021.462444] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/21/2021] [Accepted: 07/24/2021] [Indexed: 12/29/2022]
Abstract
This review article compares and contrasts sample preparation techniques coupled with high-performance liquid chromatography (HPLC) and describes applications developed in biomedical, forensics, and environmental/industrial hygiene in the last two decades. The proper sample preparation technique can offer valued data for a targeted application when coupled to HPLC and a suitable detector. Improvements in sample preparation techniques in the last two decades have resulted in efficient extraction, cleanup, and preconcentration in a single step, thus providing a pathway to tackle complex matrix applications. Applications such as biological therapeutics, proteomics, lipidomics, metabolomics, environmental/industrial hygiene, forensics, glycan cleanup, etc., have been significantly enhanced due to improved sample preparation techniques. This review looks at the early sample preparation techniques. Further, it describes eight sample preparation technique coupled to HPLC that has gained prominence in the last two decades. They are (1) solid-phase extraction (SPE), (2) liquid-liquid extraction (LLE), (3) gel permeation chromatography (GPC), (4) Quick Easy Cheap Effective Rugged, Safe (QuEChERS), (5) solid-phase microextraction (SPME), (6) ultrasonic-assisted solvent extraction (UASE), and (7) microwave-assisted solvent extraction (MWASE). SPE, LLE, GPC, QuEChERS, and SPME can be used offline and online with HPLC. UASE and MWASE can be used offline with HPLC but have also been combined with the online automated techniques of SPE, LLE, GPC, or QuEChERS for targeted analysis. Three application areas of biomedical, forensics, and environmental/industrial hygiene are reviewed for the eight sample preparation techniques. Three hundred and twenty references on the eight sample preparation techniques published over the last two decades (2001-2021) are provided. Other older references were included to illustrate the historical development of sample preparation techniques.
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Affiliation(s)
- A Bakarr Kanu
- Department of Chemistry, Winston-Salem State University, Winston-Salem, NC 27110, United States.
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Zhu S, Wen C, Bai D, Gao M. Diagnostic efficacy of intravascular ultrasound combined with Gd 2O 3-EPL contrast agent for patients with atherosclerosis. Exp Ther Med 2020; 20:136. [PMID: 33082868 PMCID: PMC7557720 DOI: 10.3892/etm.2020.9265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 08/16/2019] [Indexed: 12/23/2022] Open
Abstract
Atherosclerosis is a cardiovascular disease that is pathologically associated with the growth of atherosclerotic plaques and vascular vulnerability. Intravascular ultrasound (IVUS) has been used to evaluate and treat cardiovascular diseases. Accumulating evidence has demonstrated that Gd2O3-doped nanoparticles contrast can be applied for the diagnosis of human diseases. In the present study, eplerenone (EPL), a mineralocorticoid receptor antagonist, was first doped with Gd2O3 nanoparticles (Gd2O3-EPL), following which its diagnostic efficacy for use in IVUS measurements (Gd2O3-EPL-IVUS) was evaluated for patients suspected with atherosclerosis. Gd2O3-EPL-IVUS presented with higher accuracy and sensitivity compared with IVUS in diagnosing 188 patients with suspected atherosclerosis. Gd2O3-EPL-IVUS exhibited stronger signals associated with plaque morphology compared with aloe IVUS for patients with atherosclerosis. In addition, Gd2O3-EPL-IVUS application resulted in clearer arterial plaque images compared with IVUS by binding mineralocorticoid receptors. Atherosclerosis was subsequently confirmed in all patients using computerized tomography-coronary angiography. Gd2O3-EPL-IVUS showed more accuracy in measuring vessel size, plaque burden and minimal lumen area compared with IVUS analysis alone. In conclusion, these outcomes suggest that Gd2O3-EPL-IVUS is a reliable tool for the evaluation of coronary lesions in patients with atherosclerosis.
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Affiliation(s)
- Shuangli Zhu
- Department of Ultrasonic Medicine, Beijing Royal Integrative Medicine Hospital, Beijing 102206, P.R. China
- Department of Ultrasonic Medicine, Peking University International Hospital, Beijing 102206, P.R. China
| | - Chaoyang Wen
- Department of Ultrasonic Medicine, Peking University International Hospital, Beijing 102206, P.R. China
| | - Dongxue Bai
- Department of Ultrasonic Medicine, Peking University International Hospital, Beijing 102206, P.R. China
| | - Meiying Gao
- Department of Ultrasonic Medicine, Peking University International Hospital, Beijing 102206, P.R. China
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8
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Premedication for Iodinated Contrast Media Induced Immediate Hypersensitivity Reactions. CURRENT TREATMENT OPTIONS IN ALLERGY 2019. [DOI: 10.1007/s40521-019-00224-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Purpose of the review
Premedication using antihistamines and/or corticosteroids has been widely used to prevent reoccurrence of immediate hypersensitivity reactions (iHR) after iodinated contrast media (ICM). However, efficacy has been debated, especially in high-risk patients. Novel findings on the role and risks of premedication and preventive strategies are summarized.
Recent findings
The rate and severity of iHR occurring despite premedication indicate that premedication is not a panacea and the intensity usually reflects that of the initial reaction. Next, the number needed to treat (NNT) to prevent one serious ICM-mediated event using corticosteroid-based premedication is high and associated with a diagnostic delay. Randomly changing the ICM has been suggested as an additional preventive measure, whilst others used a skin test–based approach to identify a subgroup of ICM allergic patients and negative skin test–based alternatives with a high negative predictive value.
Summary
Growing evidence indicates the need to discriminate between non-allergic iHR that are most likely non-obligatory and susceptible to premedication, and rare type I allergic iHR that can be identified using skin testing, especially in those with a severe iHR. Although premedication reduces reoccurrence of mild iHR, it is not always efficacious and should be balanced against side effects, a high NNT and an uncertain efficacy physicians should not blindly rely on. Future work should evaluate combined approaches of an allergy-driven ICM selection and endotype-driven premedication regimens in patients with non-allergic iHR.
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Sordet M, Buleté A, Vulliet E. A rapid and easy method based on hydrophilic interaction chromatography coupled with tandem mass spectrometry (HILIC-MS/MS/MS) to quantify iodinated X-ray contrast in wastewaters. Talanta 2018; 190:480-486. [PMID: 30172537 DOI: 10.1016/j.talanta.2018.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 11/19/2022]
Abstract
This work proposes the first method based on hydrophilic interaction liquid chromatography coupled to multiple reaction monitoring with triple stage fragmentation (HILIC-MRM3) to quantify polar organic micropollutants in complex sewage waters. A fast HILIC-MRM3 analytical method, without sample preparation except a dilution step, was developed and validated to quantify seven iodinated contrast media (ICMs) in sewage waters, namely iohexol, iomeprol, ioversol, iopamidol, diatrizoic acid, iopromide and iopentol. Several chromatographic columns and mobile phase conditions were investigated and a good separation of the ICMs was obtained with a mixed-mode column (Acclaim Mixed-mode WAX) used in HILIC conditions. The validation was performed using a synthetic matrix: the limits of quantification (LOQ) were inferior to 1 µg/L and the linearity of each compound was comprised within the [0.5-50] µg/L range. The applicability of the HILIC-MRM3 method was assessed by the analysis of several raw waters. The results highlighted the presence of ICMs in most samples, at concentrations up to several mg/L in hospital sewage waters.
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Affiliation(s)
- Martin Sordet
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Ens de Lyon - Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Audrey Buleté
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Ens de Lyon - Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Emmanuelle Vulliet
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Ens de Lyon - Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France.
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Zheng H, Yu W, Xue X, Guo Z, Liu Y, Yang G, Liu Y, Zhu J. Simultaneous determination of free and total choline andl-carnitine in infant formula using hydrophilic interaction liquid chromatography with tandem mass spectrometry. J Sep Sci 2018; 41:3176-3185. [DOI: 10.1002/jssc.201800483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/08/2018] [Accepted: 06/11/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Hong Zheng
- Shandong Institute for Food and Drug Control; Jinan China
| | - Wenjiang Yu
- Shandong Institute for Food and Drug Control; Jinan China
| | - Xia Xue
- Shandong Institute for Food and Drug Control; Jinan China
| | - Zhimou Guo
- Dalian Institute of Chemical Physics; Chinese Academy of Science; Liaoning China
| | - Yanfang Liu
- Dalian Institute of Chemical Physics; Chinese Academy of Science; Liaoning China
| | - Guosheng Yang
- School of Chemistry and Chemical Engineering; Shandong University; Jinan China
| | - Yanming Liu
- Shandong Institute for Food and Drug Control; Jinan China
| | - Jianhua Zhu
- Shandong Institute for Food and Drug Control; Jinan China
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Xu Z, Li X, Hu X, Yin D. Distribution and relevance of iodinated X-ray contrast media and iodinated trihalomethanes in an aquatic environment. CHEMOSPHERE 2017; 184:253-260. [PMID: 28601007 DOI: 10.1016/j.chemosphere.2017.05.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/02/2017] [Accepted: 05/08/2017] [Indexed: 06/07/2023]
Abstract
Distribution and relevance of iodinated X-ray contrast media (ICM) and iodinated disinfection byproducts (I-DBPs) in a real aquatic environment have been rarely documented. In this paper, some ICM were proven to be strongly correlated with I-DBPs through investigation of five ICM and five iodinated trihalomethanes (I-THMs) in surface water and two drinking water treatment plants (DWTPs) of the Yangtze River Delta, China. The total ICM concentrations in Taihu Lake and the Huangpu River ranged from 88.7 to 131 ng L-1 and 102-252 ng L-1, respectively. While the total I-THM concentrations ranged from 128 to 967 ng L-1 in Taihu Lake and 267-680 ng L-1 in the Huangpu River. Iohexol, the dominant ICM, showed significant positive correlation (p < 0.01) with CHClI2 in Taihu Lake. Iopamidol and iomeprol correlated positively (p < 0.01) with some I-THMs in the Huangpu River. The observed pronounced correlations between ICM and I-THMs indicated that ICM play an important role in the formation of I-THMs in a real aquatic environment. Characteristics of the I-THM species distributions indicated that I-THMs may be transformed by natural conditions. Both DWTPs showed negligible removal efficiencies for total ICM (<20%). Strikingly high concentrations of total I-THMs were observed in the finished water (2848 ng L-1 in conventional DWTP and 356 ng L-1 in advanced DWTP). Obvious transformation of ICM to I-THMs was observed during the chlorination and ozonization processes in DWTPs. We suggest that ICM is an important source for I-DBP formation in the real aquatic environment.
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Affiliation(s)
- Zhifa Xu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xia Li
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xialin Hu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
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Morales H, Lu A, Kurosawa Y, Clark JF, Tomsick T. Variable MR and pathologic patterns of hemorrhage after iodinated contrast infusion in MCA occlusion/reperfusion model. J Neurointerv Surg 2016; 9:1248-1252. [PMID: 27899518 DOI: 10.1136/neurintsurg-2016-012777] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/07/2016] [Accepted: 11/10/2016] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To examine the hypothesis that IA reperfusion with iso-osmolar iodixanol, low-osmolar iopamidol, or saline causes different effects on MR signal changes and pathologic cut-brain section related to hemorrhagic transformation (HT) or iodinated radiographic contrast media (IRCM) deposition. METHODS Infarct was induced in 30 rats by middle cerebral artery suture occlusion. Reperfusion was performed after 5 hours with iso-osmolar iodixanol (n=9), low-osmolar iopamidol (n=12) or saline (n=9). MR images were obtained immediately after reperfusion and rats were sacrificed at 24 hours. Hypointense areas within the infarction on T2-weighted (T2-WI) or gradient echo (GRE) images were recorded and compared with HT on pathology. Fisher's exact test was used for proportions, and receiver operator curve analysis to evaluate MRI discrimination of hemorrhage. RESULTS Two types of HT were noted on pathology: confluent >0.2 mm petechial hemorrhage (PeH, 78%) or well-defined ≤0.2 mm hemorrhagic focus (HF, 22%). PeH was least common in the iodixanol subgroup (p<0.02). HF was more common in the IRCM group. Hypointense areas on T2-WI but not on GRE were significantly more common in the IRCM group (p<0.05). Hypointense areas on T2-WI and GRE discriminated HT (area under the curve: 0.714, p<0.002). CONCLUSIONS IRCM and saline induced different MRI signal and pathologic patterns in our sample. We postulate that T2 hypointensity with no GRE hypointensity might be associated with IRCM deposition; and decreased frequency of PeH after iodixanol infusion and the presence of HF almost exclusively in the IRCM group might represent a direct/indirect effect of contrast infusion/deposition in the brain parenchyma after reperfusion. Our results support previous observations in IMS III and are hypothesis generating.
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Affiliation(s)
- Humberto Morales
- Department of Radiology, University of Cincinnati Medical Center, Cincinnati, Ohio, USA
| | - Aigang Lu
- Department of Neurology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Yuko Kurosawa
- Department of Neurology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Joseph F Clark
- Department of Neurology, University of Cincinnati, Cincinnati, Ohio, USA
| | - Thomas Tomsick
- Department of Radiology, University of Cincinnati Medical Center, Cincinnati, Ohio, USA
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Chaloemsuwiwattanakan T, Sangcakul A, Kitiyakara C, Nacapricha D, Wilairat P, Chaisuwan P. Simple and fast analysis of iohexol in human serums using micro-hydrophilic interaction liquid chromatography with monolithic column. J Sep Sci 2016; 39:3521-7. [PMID: 27443792 DOI: 10.1002/jssc.201600475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/10/2016] [Accepted: 07/13/2016] [Indexed: 11/06/2022]
Abstract
A simple and rapid method based on micro-liquid chromatography using a synthetic monolithic capillary column was developed for determination of iohexol in human serums, a marker to evaluate the glomerular filtration rate. A hydrophilic methacrylic acid-ethylene dimethacrylate monolith provided excellent selectivity and efficiency for iohexol with separation time of 3 min using a mobile phase of 40:60 v/v 50 mM phosphate buffer pH 5/methanol. Four serum protein removal, methods using perchloric acid, 50% acetonitrile, 0.1 M zinc sulfate, and centrifuge membrane filter were examined. The method of zinc sulfate was chosen due to its simplicity, compatibility with the mobile phase system, nontoxicity, and low cost. Interday calibration curves were conducted over iohexol concentrations range of 2-500 mg/L (R(2) = 0.9997 ± 0.0001) with detection limit of 0.44 mg/L. Intra- and interday precisions for peak area and retention time were less than 2.8 and 1.4%, respectively. The method was successfully applied to serum samples with percent recoveries from 102 to 104. The method was applied to monitor released iohexol from healthy subject. Compared with the commercially available reversed-phase high-performance liquid chromatography method, the presented method provided simpler chromatogram, faster separation with higher separation efficiency and much lower sample and solvent consumption.
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Affiliation(s)
| | - Areeporn Sangcakul
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chagriya Kitiyakara
- Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Duangjai Nacapricha
- Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs.).,Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Prapin Wilairat
- Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs.).,National Doping Control Centre, Mahidol University, Bangkok, Thailand
| | - Patcharin Chaisuwan
- Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs.). .,School of Chemistry, Institute of Science, Suranaree University of Technology, Muang District, Nakhon Ratchasima, Thailand.
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14
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Zhang Y, Xiao Z, Lv S, Du Z, Liu X. Simultaneous determination of 16 polycyclic aromatic hydrocarbons in reclaimed water using solid-phase extraction followed by ultra-performance convergence chromatography with photodiode array detection. J Sep Sci 2016; 39:993-9. [PMID: 26663357 DOI: 10.1002/jssc.201500823] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 11/28/2015] [Accepted: 12/01/2015] [Indexed: 11/07/2022]
Abstract
A new fast and effective analysis method has been developed to simultaneously determine 16 polycyclic aromatic hydrocarbons in reclaimed water samples by ultra-performance convergence chromatography with photodiode array detection and solid-phase extraction. The parameters of ultra-performance convergence chromatography on the separation behaviors and the crucial condition of solid-phase extraction were investigated systematically. Under optimal conditions, the 16 polycyclic aromatic hydrocarbons could be separated within 4 min. The limits of detection and quantification were in the range of 0.4-4 and 1-10 μg/L in water, respectively. This approach has been applied to a real industrial wastewater treatment plant successfully. The results showed that polycyclic aromatic hydrocarbons were dramatically decreased after chemical treatment procedure, and the oxidation procedure was effective to remove trace polycyclic aromatic hydrocarbons.
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Affiliation(s)
- Yun Zhang
- College of Science, Beijing University of Chemical Technology, Beijing, China
| | - Zhiyong Xiao
- Beijing Agro-Monitoring Station, Beijing, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products on Environmental Factors, Beijing, MOA, China
| | - Surong Lv
- College of Science, Beijing University of Chemical Technology, Beijing, China
| | - Zhenxia Du
- College of Science, Beijing University of Chemical Technology, Beijing, China
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing, China
| | - Xiaoxia Liu
- Beijing Agro-Monitoring Station, Beijing, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products on Environmental Factors, Beijing, MOA, China
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