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Ralbovsky NM, Smith JP. Process analytical technology and its recent applications for asymmetric synthesis. Talanta 2022; 252:123787. [DOI: 10.1016/j.talanta.2022.123787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/25/2022] [Indexed: 11/27/2022]
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2
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Emerging applications of EEM-PARAFAC for water treatment: a concise review. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Alfonso-Muniozguren P, Serna-Galvis EA, Bussemaker M, Torres-Palma RA, Lee J. A review on pharmaceuticals removal from waters by single and combined biological, membrane filtration and ultrasound systems. ULTRASONICS SONOCHEMISTRY 2021; 76:105656. [PMID: 34274706 PMCID: PMC8319449 DOI: 10.1016/j.ultsonch.2021.105656] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/21/2021] [Accepted: 06/28/2021] [Indexed: 06/01/2023]
Abstract
Contaminants of emerging concern (CEC) such as pharmaceuticals commonly found in urban and industrial wastewater are a potential threat to human health and have negative environmental impact. Most wastewater treatment plants cannot efficiently remove these compounds and therefore, many pharmaceuticals end up in aquatic ecosystems, inducing problems such as toxicity and antibiotic-resistance. This review reports the extent of pharmaceutical removal by individual processes such as bioreactors, advanced oxidation processes and membrane filtration systems, all of which are not 100% efficient and can lead to the direct discharge of pharmaceuticals into water bodies. Also, the importance of understanding biotransformation of pharmaceutical compounds during biological and ultrasound treatment, and its impact on treatment efficacy will be reviewed. Different combinations of the processes above, either as an integrated configuration or in series, will be discussed in terms of their degradation efficiency and scale-up capabilities. The trace quantities of pharmaceutical compounds in wastewater and scale-up issues of ultrasound highlight the importance of membrane filtration as a concentration and volume reduction treatment step for wastewater, which could subsequently be treated by ultrasound.
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Affiliation(s)
| | - Efraím A Serna-Galvis
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Grupo de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Corporación Universitaria Remington (Uniremington), Calle 51 No. 51-27, Medellín, Colombia
| | - Madeleine Bussemaker
- Chemical and Process Engineering, University of Surrey, Guildford GU27XH, United Kingdom
| | - Ricardo A Torres-Palma
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| | - Judy Lee
- Chemical and Process Engineering, University of Surrey, Guildford GU27XH, United Kingdom.
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Correia FV, Pereira PCG, Junior SFS, Jiménez-Tototzintle M, Saggioro EM. Ecotoxicological evaluation of imazalil transformation products on Eisenia Andrei. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:198-212. [PMID: 33566272 DOI: 10.1007/s10646-021-02353-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
Data concerning the toxicity of the transformation products of some pesticides considered emerging contaminants are still incipient. This study aimed to evaluate acute (filter paper contact and avoidance test) and chronic (assays carried out in Red yellow Ultisoil) effects of the transformation products of the fungicide imazalil (IMZ) by heterogeneous photocatalysis (TiO2/UV) in Eisenia andrei. Some endpoints, i.e. biomass variation, disorder in reproduction and avoidance behavior, cytotoxicity (cell density and feasibility), and coelomic fluid (eleocytes and amoebocytes, immune cell) and antioxidant system (catalase (CAT) and glutathione S-transferase (GST)) changes were assessed. The studied degradation times (6, 18, 35 and 90 min) represented 70; 35; 10 and 0% of the initial IMZ concentration (5 mg L-1). No lethality and no significant difference in biomass variations were noted in the acute contact test. Decreased GST and increased CAT activities, as well as cell typing alterations and decreased cell viability and density detected at the 90-min degradation timepoint (PDT-90) indicate direct cytotoxic IMZ transformation product effects. In the avoidance test, no significant earthworm repulsion or attraction was observed. PDT-90 transformation products were responsible for losses in biomass and a reduction in the number of earthworm cocoons and juveniles present in soil. No cytotoxic effects were observed in the long term, although increased CAT and decreased GST activities were observed. Investigations on the relative toxicity of IMZ transformation products are relevant for future discussions regarding the environmental treatment, control and destination of this compound and its derivatives.
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Affiliation(s)
- Fábio Veríssimo Correia
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro, Av. Pasteur 458, 22290-20, Rio de Janeiro, Brazil.
| | | | - Sidney Fernandes Sales Junior
- Centro de Estudos Saúde do Trabalhador e Ecologia Humana, Escola Nacional de Saúde Pública, Av. Leopoldo Bulhões 1480, 21041-210, Rio de Janeiro, Brazil
| | - Margarita Jiménez-Tototzintle
- Departament d'Enginyeria Química-ETSEQ, Universitat Rovira i Virgili, Dirección, Campus Sescelades, Avda. Països Catalans, 26, CP: 43007, Tarragona, Spain
| | - Enrico Mendes Saggioro
- Departamento de Saneamento e Saúde Ambiental, Escola Nacional de Saúde Pública, Av. Leopoldo Bulhões 1480, 21041-210, Rio de Janeiro, Brazil
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Di Carro M, Lluveras-Tenorio A, Benedetti B, Magi E. An innovative sampling approach combined with liquid chromatography-tandem mass spectrometry for the analysis of emerging pollutants in drinking water. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4608. [PMID: 32707599 DOI: 10.1002/jms.4608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/20/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
In this work, an innovative sampling and preconcentration method followed by analysis with liquid chromatography coupled to tandem mass spectrometry with electrospray ionization (LC-ESI-MS/MS) was developed for the determination of different emerging pollutants (five anti-inflammatory drugs and one antibacterial agent) in water matrices. Thin-film microextraction blades, consisting of stainless steel blades with a coating made of divinylbenzene, have been employed. The blades, fixed onto a stainless steel support, were mounted on a laboratory stirrer with adjustable speed, immersed in water samples and eluted with methanol. The analytical procedure was developed, carefully optimizing stirring speed and extraction time. A good reproducibility among the blades was observed; quantitation limits at the ng L-1 level were achieved. Calibration curves were constructed by applying the whole procedure to tap water samples, free from analytes, spiked with standards in the concentration range 0.01-2 μg L-1 ; good linearity was obtained, with R2 between 0.9984 and 0.9991. The optimized method was applied to tap and surface waters; two anti-inflammatory drugs were detected at the ng L-1 level in surface water. In one sample, diclofenac and naproxen were measured at 26 ± 5 and 15 ± 1 ng L-1 , respectively; only diclofenac was quantified in the other sample at 14 ± 3 ng L-1 .
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Affiliation(s)
- Marina Di Carro
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa 16146, Italy
| | - Anna Lluveras-Tenorio
- National Interuniversity Consortium of Materials Science and Technology, Via G. Giusti 9, Florence, Italy
| | - Barbara Benedetti
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa 16146, Italy
| | - Emanuele Magi
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa 16146, Italy
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6
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Becerra-Herrera M, Miranda V, Richter P. Rapid Determination of Parabens in Water Samples by Ultra-high Performance Liquid Chromatography Coupled to Time of Flight Mass Spectrometry. ANAL SCI 2020; 36:675-679. [PMID: 31902828 DOI: 10.2116/analsci.19p409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 11/16/2019] [Indexed: 08/09/2023]
Abstract
An analytical methodology has been developed and validated for the purpose of identifying and quantifying four parabens (methylparaben, ethylparaben, propylparaben and n-butylparaben) in water samples. The combination of rotating disk sorptive extraction (RDSE) technology with ultra-high performance liquid chromatography (UHPLC), along with electrospray ionization source (ESI) and time of flight mass spectrometry (TOF/MS) in trap mode, allowed for eliminating derivatization processes and a reduction of the chromatographic time required, achieving a greener analytical method. In this method, detection limits and precision (%RSD) were lower than 0.018 μg L-1 and lower than 9.7% for all the parabens, respectively, being better than similar works. Matrix effect and absolute recoveries were studied in tap and sewage water samples to observe suppressions of the signals for all analytes, and absolute recoveries were around 60%. This methodology was applied to the analysis of two sewage samples (punctual and composite) obtained from locations in Santiago, Chile.
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Affiliation(s)
- Mercedes Becerra-Herrera
- Department of Chemistry, Faculty of Sciences, University of Chile, P. O. Box 653, Santiago, Chile.
| | - Valentina Miranda
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, P. O. Box 233, Santiago, Chile
| | - Pablo Richter
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, P. O. Box 233, Santiago, Chile.
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Nunes B, Daniel D, Canelas GG, Barros J, Correia AT. Toxic effects of environmentally realistic concentrations of diclofenac in organisms from two distinct trophic levels, Hediste diversicolor and Solea senegalensis. Comp Biochem Physiol C Toxicol Pharmacol 2020; 231:108722. [PMID: 32032725 DOI: 10.1016/j.cbpc.2020.108722] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/17/2020] [Accepted: 02/01/2020] [Indexed: 12/30/2022]
Affiliation(s)
- Bruno Nunes
- Departamento de Biologia da Universidade de Aveiro/Departament of Biology of the University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar/Centre for Environmental and Marine Studies (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - David Daniel
- Departamento de Biologia da Universidade de Aveiro/Departament of Biology of the University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Gisela Gonçalves Canelas
- Faculdade de Ciências da Saúde da Universidade Fernando Pessoa/Faculty of Health Sciences of Fernando Pessoa University, (FCS/UFP), Rua Carlos da Maia 296, 4200-150 Porto, Portugal
| | - Joseane Barros
- Instituto de Ciências Biomédicas de Abel Salazar da Universidade do Porto/Institute of Biomedical Sciences Abel Salazar of the University of Porto, (ICBAS), Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Alberto Teodorico Correia
- Faculdade de Ciências da Saúde da Universidade Fernando Pessoa/Faculty of Health Sciences of Fernando Pessoa University, (FCS/UFP), Rua Carlos da Maia 296, 4200-150 Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental/Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
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8
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Influence of boron doped diamond electrodes properties on the elimination of selected pharmaceuticals from wastewater. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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9
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Klampfl CW. Metabolization of pharmaceuticals by plants after uptake from water and soil: A review. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.11.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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A review on structural elucidation of metabolites of environmental steroid hormones via liquid chromatography–mass spectrometry. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Stadlmair LF, Grosse S, Letzel T, Drewes JE, Grassmann J. Comprehensive MS-based screening and identification of pharmaceutical transformation products formed during enzymatic conversion. Anal Bioanal Chem 2018; 411:339-351. [DOI: 10.1007/s00216-018-1442-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/28/2018] [Accepted: 10/22/2018] [Indexed: 10/27/2022]
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12
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Simu GM, Atchana J, Soica CM, Coricovac DE, Simu SC, Dehelean CA. Pharmaceutical Mixtures: Still A Concern for Human and Environmental Health. Curr Med Chem 2018; 27:121-153. [PMID: 30406736 DOI: 10.2174/0929867325666181108094222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 01/09/2018] [Accepted: 01/29/2018] [Indexed: 11/22/2022]
Abstract
In the present work, recent data on the sources, occurrence and fate of human-use pharmaceutical active compounds (PhACs) in the aquatic environment have been reviewed. Since PhACs and their metabolites are usually present as mixtures in the environment at very low concentrations, a particular emphasis was placed onto the PhACs mixtures, as well as on their short-term and long-term effects against human and environmental health. Moreover, a general overview of the main conventional as well as of the latest trends in wastewaters decontaminant technologies was outlined. Advantages and disadvantages of current processes were also pointed out. It appears that numerous gaps still exist in the current knowledge related to this field of interest, and further studies should be conducted at the global level in order to ensure a more efficient monitorisation of the presence of PhACs and their metabolites into the aquatic environment and to develop new mitigation measures.
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Affiliation(s)
- Georgeta M Simu
- University of Medicine and Pharmacy "Victor Babes" Timisoara, Faculty of Pharmacy, 2Eftimie Murgu, Timisoara 300041, Romania
| | - Jeanne Atchana
- University of Maroua, Faculty of Sciences, Department of Chemistry, P.O. Box 46, University of Maroua, Maroua, Cameroon
| | - Codruta M Soica
- University of Medicine and Pharmacy "Victor Babes" Timisoara, Faculty of Pharmacy, 2Eftimie Murgu, Timisoara 300041, Romania
| | - Dorina E Coricovac
- University of Medicine and Pharmacy "Victor Babes" Timisoara, Faculty of Pharmacy, 2Eftimie Murgu, Timisoara 300041, Romania
| | - Sebastian C Simu
- University of Medicine and Pharmacy "Victor Babes" Timisoara, Faculty of Pharmacy, 2Eftimie Murgu, Timisoara 300041, Romania
| | - Cristina A Dehelean
- University of Medicine and Pharmacy "Victor Babes" Timisoara, Faculty of Pharmacy, 2Eftimie Murgu, Timisoara 300041, Romania
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An automated on-line turbulent flow liquid-chromatography technology coupled to a high resolution mass spectrometer LTQ-Orbitrap for suspect screening of antibiotic transformation products during microalgae wastewater treatment. J Chromatogr A 2018; 1568:57-68. [DOI: 10.1016/j.chroma.2018.06.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/07/2018] [Accepted: 06/10/2018] [Indexed: 12/26/2022]
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14
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Magi E, Di Carro M. Marine environment pollution: The contribution of mass spectrometry to the study of seawater. MASS SPECTROMETRY REVIEWS 2018; 37:492-512. [PMID: 27611504 DOI: 10.1002/mas.21521] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 08/29/2016] [Indexed: 05/26/2023]
Abstract
The study of marine pollution has been traditionally addressed to persistent chemicals, generally known as priority pollutants; a current trend in environmental analysis is a shift toward "emerging pollutants," defined as newly identified or previously unrecognized contaminants. The present review is focused on the peculiar contribution of mass spectrometry (MS) to the study of pollutants in the seawater compartment. The work is organized in five paragraphs where the most relevant groups of pollutants, both "classical" and "emerging," are presented and discussed, highlighting the relative data obtained by the means of different MS techniques. The hyphenation of MS and separative techniques, together with the development of different ion sources, makes MS and tandem MS the analytical tool of choice for the determination of trace organic contaminants in seawater. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 37:492-512, 2018.
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Affiliation(s)
- Emanuele Magi
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146, Genoa, Italy
| | - Marina Di Carro
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146, Genoa, Italy
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Wieszczycka K, Zembrzuska J, Bornikowska J, Wojciechowska A, Wojciechowska I. Removal of naproxen from water by ionic liquid-modified polymer sorbents. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2016.11.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Yang Y, Deng J. Analysis of pharmaceutical products and herbal medicines using ambient mass spectrometry. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.04.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Kanakaraju D, Motti CA, Glass BD, Oelgemöller M. Solar photolysis versus TiO2-mediated solar photocatalysis: a kinetic study of the degradation of naproxen and diclofenac in various water matrices. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:17437-17448. [PMID: 27230148 DOI: 10.1007/s11356-016-6906-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
Given that drugs and their degradation products are likely to occur as concoctions in wastewater, the degradation of a mixture of two nonsteroidal anti-inflammatory drugs (NSAIDs), diclofenac (DCF) and naproxen (NPX), was investigated by solar photolysis and titanium dioxide (TiO2)-mediated solar photocatalysis using an immersion-well photoreactor. An equimolar ratio (1:1) of both NSAIDs in distilled water, drinking water, and river water was subjected to solar degradation. Solar photolysis of the DCF and NPX mixture was competitive particularly in drinking water and river water, as both drugs have the ability to undergo photolysis. However, the addition of TiO2 in the mixture significantly enhanced the degradation rate of both APIs compared to solar photolysis alone. Mineralization, as measured by chemical oxygen demand (COD), was incomplete under all conditions investigated. TiO2-mediated solar photocatalytic degradation of DCF and NPX mixtures produced 15 identifiable degradants corresponding to degradation of the individual NSAIDs, while two degradation products with much higher molecular weight than the parent NSAIDs were identified by liquid chromatography mass spectrometry (LC-MS) and Fourier transform-ion cyclotron resonance-mass spectrometry (FT-ICR-MS). This study showed that the solar light intensity and the water matrix appear to be the main factors influencing the overall performance of the solar photolysis and TiO2-mediated solar photocatalysis for degradation of DCF and NPX mixtures.
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Affiliation(s)
- Devagi Kanakaraju
- Chemistry, College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia.
- Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia.
| | - Cherie A Motti
- Australian Institute of Marine Science (AIMS), Biomolecular Analysis Facility, Townsville, QLD, 4810, Australia
| | - Beverley D Glass
- Pharmacy, College of Medicine and Dentistry, James Cook University, Townsville, QLD, 4811, Australia
| | - Michael Oelgemöller
- Chemistry, College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia.
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Daughton CG. Pharmaceuticals and the Environment (PiE): Evolution and impact of the published literature revealed by bibliometric analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 562:391-426. [PMID: 27104492 DOI: 10.1016/j.scitotenv.2016.03.109] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/15/2016] [Accepted: 03/15/2016] [Indexed: 05/28/2023]
Abstract
The evolution and impact of the published literature surrounding the transdisciplinary, multifaceted topic of pharmaceuticals as contaminants in the environment is examined for the first time in an historical context. The preponderance of literature cited in this examination represents the earlier works. As an historical chronology, the focus is on the emergence of key, specific aspects of the overall topic (often termed PiE) in the published literature and on the most highly cited works. This examination is not a conventional, technical review of the literature; as such, little attention was devoted to the more recent literature. The many dimensions involved with PiE span over 70years of published literature. Some articles began to appear in published works in the 1940s and earlier, while others only began to receive attention in the 1990s and later. Decades of early research on what at the time seemed to be disconnected topics eventually coalesced in the mid-to-late 1990s around a number of interconnected concerns and issues that now comprise PiE. Major objectives are to provide a new perspective to the topic, to facilitate more efficient and effective review of the literature by others, and to recognize the more significant, seminal contributions to the advancement of PiE as a field of research. Some of the most highly cited articles in all of environmental science now involve PiE. As of April 2015, a core group of 385 PiE articles had each received at least 200 citations; one had received 5424 citations. But hundreds of additional articles also played important roles in the evolution and advancement of the field.
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Affiliation(s)
- Christian G Daughton
- Environmental Futures Analysis Branch, Systems Exposure Division, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 944 East Harmon Avenue, Las Vegas, NV 89119, USA.
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Chiarello M, Minetto L, Giustina SVD, Beal LL, Moura S. Popular pharmaceutical residues in hospital wastewater: quantification and qualification of degradation products by mass spectroscopy after treatment with membrane bioreactor. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:16079-16089. [PMID: 27146545 DOI: 10.1007/s11356-016-6766-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
The occurrence of drugs in wastewater has been considered an imminent risk to the population, for the treatments used are usually ineffective. The presence of four popular drug residues (metformin, paracetamol, tetracycline, and enalapril) in hospital effluents, by using ultra-fast liquid chromatography tandem mass spectrometry (UFLC-MS/MS) with electrospray (ESI) ionization, and removal/degradation by membrane bioreactor (MBR) system are investigated in this study. For analysis method, all standard calibration curves showed satisfactory linearity (R (2) ≥ 0.993) within a relatively wide range. The recovery was between 70.4 and 105.0 %, and the relative standard deviation (RSD) values were within the ranges of 8.2 and 13.5 %. The effluent samples were collected at the end of the process treated in a bench-scale MBR treatment system and preconcentrated on solid-phase extraction (SPE) cartridges. Following that procedure, the chemical analysis demonstrated that the MBR system was effective in enalapril 94.3 ± 7.63 %, tetracycline 99.4 ± 0.02 %, and paracetamol 98.8 ± 0.86 % removal. However, the polar metformin was less effectively removed (35.4 ± 12.49 %). Moreover, the degradation products were investigated using high-resolution mass spectrometry (HRMS) by quadrupole-time of flight (Q-TOF), which has been indicated a tetracycline metabolite. In order to investigate the environmental impact, the wastewater potential risk was evaluated. The risk quotient (RQ) by measure environmental concentration (MEC) and its predicted no effect concentration (PNEC) ratio (RQ = MEC/PNEC) was between 0.003 (enalapril) to 0.815 (paracetamol). Finally, this work demonstrates that UFLC-MS/MS (ESI-Q) is a sensitive and selective method for drug analysis in wastewater and with ESI-Q-TOF has the accuracy required for determining the degradation products of these compounds. Also, it indicated that membrane bioreactor systems represent a new generation of processes that have proved to outperform conventional treatment showing better effluent quality. The removal capacity studied in this work demonstrates the efficiency of this process.
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Affiliation(s)
- M Chiarello
- LBIOP-Laboratory of Biotechnology of Natural and Synthetics Products, Technology Department, Biotechnology Institute, University of Caxias do Sul, 1130, Francisco Getúlio Vargas St., CEP 95070-560, Caxias do Sul, Brazil
- LATAM-Laboratory of Environmental Technology, Technology Department, University of Caxias do Sul, 1130, Francisco Getúlio Vargas St., CEP 95070-560, Caxias do Sul, Brazil
| | - L Minetto
- LBIOP-Laboratory of Biotechnology of Natural and Synthetics Products, Technology Department, Biotechnology Institute, University of Caxias do Sul, 1130, Francisco Getúlio Vargas St., CEP 95070-560, Caxias do Sul, Brazil
| | - S V Della Giustina
- LATAM-Laboratory of Environmental Technology, Technology Department, University of Caxias do Sul, 1130, Francisco Getúlio Vargas St., CEP 95070-560, Caxias do Sul, Brazil
| | - L L Beal
- LATAM-Laboratory of Environmental Technology, Technology Department, University of Caxias do Sul, 1130, Francisco Getúlio Vargas St., CEP 95070-560, Caxias do Sul, Brazil
| | - S Moura
- LBIOP-Laboratory of Biotechnology of Natural and Synthetics Products, Technology Department, Biotechnology Institute, University of Caxias do Sul, 1130, Francisco Getúlio Vargas St., CEP 95070-560, Caxias do Sul, Brazil.
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Daniele G, Fieu M, Joachim S, Bado-Nilles A, Baudoin P, Turies C, Porcher JM, Andres S, Vulliet E. Rapid analysis of diclofenac and some of its transformation products in the three-spined stickleback, Gasterosteus aculeatus, by liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2016; 408:4435-44. [DOI: 10.1007/s00216-016-9541-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/18/2016] [Accepted: 04/04/2016] [Indexed: 12/12/2022]
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21
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Svan A, Hedeland M, Arvidsson T, Jasper JT, Sedlak DL, Pettersson CE. Identification of transformation products from β-blocking agents formed in wetland microcosms using LC-Q-ToF. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:207-218. [PMID: 26956388 DOI: 10.1002/jms.3737] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 11/17/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
Identification of degradation products from trace organic compounds, which may retain the biological activity of the parent compound, is an important step in understanding the long-term effects of these compounds on the environment. Constructed wetlands have been successfully utilized to remove contaminants from wastewater effluent, including pharmacologically active compounds. However, relatively little is known about the transformation products formed during wetland treatment. In this study, three different wetland microcosm treatments were used to determine the biotransformation products of the β-adrenoreceptor antagonists atenolol, metoprolol and propranolol. LC/ESI-Q-ToF run in the MS(E) and MS/MS modes was used to identify and characterize the degradation products through the accurate masses of precursor and product ions. The results were compared with those of a reference standard when available. Several compounds not previously described as biotransformation products produced in wetlands were identified, including propranolol-O-sulfate, 1-naphthol and the human metabolite N-deaminated metoprolol. Transformation pathways were significantly affected by microcosm conditions and differed between compounds, despite the compounds' structural similarities. Altogether, a diverse range of transformation products in wetland microcosms were identified and elucidated using high resolving MS. This work shows that transformation products are not always easily predicted, nor formed via the same pathways even for structurally similar compounds.
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Affiliation(s)
- Alfred Svan
- Division of Analytical Pharmaceutical Chemistry, Uppsala University, BMC Box 574, SE-751 23, Uppsala, Sweden
| | - Mikael Hedeland
- Division of Analytical Pharmaceutical Chemistry, Uppsala University, BMC Box 574, SE-751 23, Uppsala, Sweden
- National Veterinary Institute (SVA), Department of Chemistry, Environment and Feed Hygiene, SE-751 89, Uppsala, Sweden
| | - Torbjörn Arvidsson
- Division of Analytical Pharmaceutical Chemistry, Uppsala University, BMC Box 574, SE-751 23, Uppsala, Sweden
- Medical Products Agency, Box 26, SE-751 03, Uppsala, Sweden
| | - Justin T Jasper
- Department of Civil and Environmental Engineering, University of California at Berkeley, Berkeley, CA, 94720, United States
| | - David L Sedlak
- Department of Civil and Environmental Engineering, University of California at Berkeley, Berkeley, CA, 94720, United States
| | - Curt E Pettersson
- Division of Analytical Pharmaceutical Chemistry, Uppsala University, BMC Box 574, SE-751 23, Uppsala, Sweden
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Becerra-Herrera M, Honda L, Richter P. Ultra-high-performance liquid chromatography—Time-of-flight high resolution mass spectrometry to quantify acidic drugs in wastewater. J Chromatogr A 2015; 1423:96-103. [DOI: 10.1016/j.chroma.2015.10.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/16/2015] [Accepted: 10/22/2015] [Indexed: 10/22/2022]
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Hernández F, Ibáñez M, Bade R, Bijlsma L, Sancho J. Investigation of pharmaceuticals and illicit drugs in waters by liquid chromatography-high-resolution mass spectrometry. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.08.003] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Jakimska A, Śliwka-Kaszyńska M, Nagórski P, Namieśnik J, Kot-Wasik A. Phototransformation of amlodipine: degradation kinetics and identification of its photoproducts. PLoS One 2014; 9:e109206. [PMID: 25279815 PMCID: PMC4184881 DOI: 10.1371/journal.pone.0109206] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/10/2014] [Indexed: 01/01/2023] Open
Abstract
Nowadays, monitoring focuses on the primary compounds and does not include degradation products formed during various biological and chemical processes. Transformation products may have the same effects to human health and the environment or sometimes they can be more toxic than the parent compound. Unfortunately, knowledge about the formation of degradation products is still limited, however, can be very important for the environmental risk assessment. Firstly, the photodegradation kinetic of amlodipine was investigated in two experimental conditions: during the exposure to solar radiation and during the exposure to the light emitted by the xenon lamp. In all cases degradation of amlodipine followed a pseudo-first-order kinetics. In the next step, identification of transformation products of amlodipine formed during the exposure to xenon lamp irradiation was performed using ultra high performance liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS). As a result sixteen photoproducts were identified, their structures were elucidated and ultimately the transformation pathway was proposed. Fifteen compounds (out of 16 photoproducts) were newly identified and reported here for the first time; some of those compounds were formed from the first photoproduct, amlodipine pyridine derivative. Several analytes were formed only in acidic or basic conditions. Furthermore, the occurrence of amlodipine and its identified degradation products was investigated in environmental waters. Only one out of 16 compounds was found in wastewater effluent. The possibility of the sorption of examined analytes to sewage sludge particles was discussed based on QSAR.
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Affiliation(s)
- Anna Jakimska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | | | - Piotr Nagórski
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Jacek Namieśnik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Agata Kot-Wasik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
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Sari S, Ozdemir G, Yangin-Gomec C, Zengin GE, Topuz E, Aydin E, Pehlivanoglu-Mantas E, Okutman Tas D. Seasonal variation of diclofenac concentration and its relation with wastewater characteristics at two municipal wastewater treatment plants in Turkey. JOURNAL OF HAZARDOUS MATERIALS 2014; 272:155-64. [PMID: 24709411 DOI: 10.1016/j.jhazmat.2014.03.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 02/27/2014] [Accepted: 03/07/2014] [Indexed: 05/22/2023]
Abstract
The pharmaceutically active compound diclofenac has been monitored during one year at separate treatment units of two municipal wastewater treatment plants (WWTPs) to evaluate its seasonal variation and the removal efficiency. Conventional wastewater characterization was also performed to assess the possible relationship between conventional parameters and diclofenac. Diclofenac concentrations in the influent and effluent of both WWTPs were detected in the range of 295-1376 and 119-1012ng/L, respectively. Results indicated that the higher diclofenac removal efficiency was observed in summer season in both WWTPs. Although a consistency in diclofenac removal was observed in WWTP_1, significant fluctuation was observed at WWTP_2 based on seasonal evaluation. The main removal mechanism of diclofenac in the WWTPs was most often biological (55%), followed by UV disinfection (27%). When diclofenac removal was evaluated in terms of the treatment units in WWTPs, a significant increase was achieved at the treatment plant including UV disinfection unit. Based on the statistical analysis, higher correlation was observed between diclofenac and suspended solids concentrations among conventional parameters in the influent whereas the removal of diclofenac was highly correlated with nitrogen removal efficiency.
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Affiliation(s)
- Sevgi Sari
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Gamze Ozdemir
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Cigdem Yangin-Gomec
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Gulsum Emel Zengin
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Emel Topuz
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Egemen Aydin
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Elif Pehlivanoglu-Mantas
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey
| | - Didem Okutman Tas
- Istanbul Technical University, Environmental Engineering Department, Maslak 34469, Istanbul, Turkey.
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26
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Elucidation of transformation pathway of ketoprofen, ibuprofen, and furosemide in surface water and their occurrence in the aqueous environment using UHPLC-QTOF-MS. Anal Bioanal Chem 2014; 406:3667-80. [PMID: 24452745 PMCID: PMC4026630 DOI: 10.1007/s00216-014-7614-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/31/2013] [Accepted: 01/02/2014] [Indexed: 11/05/2022]
Abstract
The identification and determination of transformation products (TPs) of pharmaceuticals is essential nowadays, in order to track their fate in the aqueous environment and, thus, to estimate the actual pollution. However, this is a challenging task due to the necessity to apply high-resolution instruments enable to detect known and unknown compounds. This work presents the use of liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) as a powerful tool for the identification of three selected pharmaceuticals, furosemide (FUR), ibuprofen (IBP), and ketoprofen (KET), and their TPs in various water samples. Laboratory degradation experiments were performed using xenon lamp as a source of the irradiation in order to simulate phototransformation processes which may occur in the environment. Furthermore, the photodegradation kinetics of three selected compounds were assessed in a reactor equipped with xenon lamp in river water samples. Five TPs of IBP, seven of KET, and five of FUR were identified; some of them are presented here for the first time. Accurate mass measurements and fragmentation pattern obtained during an LC-QTOF-MS analysis allowed for structure elucidation of TPs followed by the creation of transformation pathway of selected pharmaceuticals. Finally, different water samples (wastewater influent and effluent, river water, untreated and treated water) were analyzed in order to estimate the presence of parent and transformed compounds. Only KET was detected in untransformed form in considered samples. Most of the TPs of selected drugs were found at least once in all water samples. Although IBP and FUR were not present in water samples as parent compounds, their different TPs occur. A great potential of LC-QTOF-MS in the identification and structural elucidation of TPs in the environment, allowing the recognition of the fate of pharmaceuticals in the environment through the determination of transformation pathway, has been presented. Phototransformation of three selected pharmaceuticals ![]()
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Zenker A, Cicero MR, Prestinaci F, Bottoni P, Carere M. Bioaccumulation and biomagnification potential of pharmaceuticals with a focus to the aquatic environment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2014; 133:378-387. [PMID: 24419205 DOI: 10.1016/j.jenvman.2013.12.017] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/24/2013] [Accepted: 12/14/2013] [Indexed: 06/03/2023]
Abstract
Pharmaceuticals, among the emerging contaminants, are one of the most relevant groups of substances in aquatic ecosystems due to universal use, their chemico-physical properties and known mode of action in aquatic organisms at low concentrations. After administration many drugs and their transformation products are only retained to some extent in wastewater treatment plants therefore entering the aquatic environment in considerable high amounts. The yearly consumption to treat human and animal diseases, also in livestock and aquaculture was estimated to be hundred thousands tons per year leading to high concentrations in surface water of developed countries. Mostly, pharmaceutical residues in effluents of wastewater treatment plants or in the water column of surface waters have been reported, but data about concentrations in the aquatic biota, partitioning of pharmaceuticals to biosolids, soils, and sediments and the bioaccumulation properties are often lacking. Chronic and subtle effects can be expected when aquatic organisms are long term exposed by pseudo-persistent, persistent and accumulative compounds. This review aims to summarize the current state of research about the fate of pharmaceuticals regarding bioconcentration, bioaccumulation and potential biomagnification in aquatic ecosystems. More comprehensive approaches for the evaluation of environmental (ERA) and human health risk assessment (HRA) are included and analytical methods required to detect bioaccumulation of pharmaceuticals are discussed.
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Affiliation(s)
- Armin Zenker
- University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Institute for Ecopreneurship - Switzerland, Gruendenstrasse, 40, 4132 Muttenz, Switzerland
| | - Maria Rita Cicero
- National Institute of Health, Department of Environment and Primary Prevention - Viale Regina Elena, 299, 00161 Rome, Italy
| | - Francesca Prestinaci
- National Institute of Health, Department of Environment and Primary Prevention - Viale Regina Elena, 299, 00161 Rome, Italy
| | - Paola Bottoni
- National Institute of Health, Department of Environment and Primary Prevention - Viale Regina Elena, 299, 00161 Rome, Italy
| | - Mario Carere
- National Institute of Health, Department of Environment and Primary Prevention - Viale Regina Elena, 299, 00161 Rome, Italy.
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28
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González-Mariño I, Quintana JB, Rodríguez I, Sánchez-Méndez N, Cela R. Transformation of cocaine during water chlorination. Anal Bioanal Chem 2012; 404:3135-44. [DOI: 10.1007/s00216-012-6428-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 09/12/2012] [Accepted: 09/13/2012] [Indexed: 11/29/2022]
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29
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Pérez-Parada A, Gómez-Ramos MDM, Martínez Bueno MJ, Uclés S, Uclés A, Fernández-Alba AR. Analytical improvements of hybrid LC-MS/MS techniques for the efficient evaluation of emerging contaminants in river waters: a case study of the Henares River (Madrid, Spain). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2012; 19:467-481. [PMID: 21822928 DOI: 10.1007/s11356-011-0585-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Accepted: 07/27/2011] [Indexed: 05/31/2023]
Abstract
PURPOSE Instrumental capabilities and software tools of modern hybrid mass spectrometry (MS) instruments such as high-resolution mass spectrometry (HRMS), quadrupole time-of-flight (QTOF), and quadrupole linear ion trap (QLIT) were experimentally investigated for the study of emerging contaminants in Henares River water samples. METHODS Automated screening and confirmatory capabilities of QTOF working in full-scan MS and tandem MS (MS/MS) were explored when dealing with real samples. Investigations on the effect of sensitivity and resolution power influence on mass accuracy were studied for the correct assignment of the amoxicillin transformation product 5(R) amoxicillin-diketopiperazine-2',5' as an example of a nontarget compound. On the other hand, a comparison of quantitative and qualitative strategies based on direct injection analysis and off-line solid-phase extraction sample treatment were assayed using two different QLIT instruments for a selected group of emerging contaminants when operating in selected reaction monitoring (SRM) and information-dependent acquisition (IDA) modes. RESULTS AND DISCUSSION Software-aided screening usually needs a further confirmatory step. Resolving power and MS/MS feature of QTOF showed to confirm/reject most findings in river water, although sensitivity-related limitations are usually found. Superior sensitivity of modern QLIT-MS/MS offered the possibility of direct injection analysis for proper quantitative study of a variety of contaminants, while it simultaneously reduced the matrix effect and increased the reliability of the results. Confirmation of ethylamphetamine, which lacks on a second SRM transition, was accomplished by using the IDA feature. CONCLUSION Hybrid MS instruments equipped with high resolution and high sensitivity contributes to enlarge the scope of targeted analytes in river waters. However, in the tested instruments, there is a margin of improvement principally in required sensitivity and data treatment software tools devoted to reliable confirmation and improved automated data processing.
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Affiliation(s)
- Andrés Pérez-Parada
- Pesticide Residue Research Group, Department of Hydrogeology and Analytical Chemistry, University of Almeria, 04120 La Cañada de San Urbano, Almeria, Spain
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30
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Occurrence and Elimination of Pharmaceuticals During Conventional Wastewater Treatment. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2012. [DOI: 10.1007/978-3-642-25722-3_1] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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31
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Perspectives on Human Pharmaceuticals in the Environment. EMERGING TOPICS IN ECOTOXICOLOGY 2012. [DOI: 10.1007/978-1-4614-3473-3_1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Afonso-Olivares C, Sosa-Ferrera Z, Santana-Rodríguez JJ. Analysis of anti-inflammatory, analgesic, stimulant and antidepressant drugs in purified water from wastewater treatment plants using SPE-LC tandem mass spectrometry. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2012; 47:887-895. [PMID: 22423996 DOI: 10.1080/10934529.2012.665005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This work presents an effective sample preparation method for the evaluation of seven pharmaceutical compounds belonging to different therapeutic classes in purified water from wastewater treatment plants (WWTPs). The target compounds include caffeine (stimulant), nicotine (stimulant), atenolol (beta blocker), metamizole (anti-inflammatory and analgesic), fluoxetine (antidepressant), paraxanthine (stimulant) and clofibric acid (lipid regulator). Solid-phase extraction (SPE) and liquid chromatography-mass spectrometry (LC-MS) were selected as extraction and detection techniques, respectively. A detailed study of the experimental conditions of extraction was performed. Under optimal conditions, recoveries obtained were in the range of 21% to 100%, and the relative standard deviations were below 12%. The detection and quantification limits of the method were in the range 2.2-97.4 and 21.1-324.7 ng L(-1), respectively. The developed method was successfully applied to evaluate the presence of these pharmaceutical compounds in wastewaters samples from wastewater treatment plants located on the Gran Canaria Island (Spain). Most of the compounds were detected at concentrations up to 12.31 μg L(-1) in the WWTP influents that were studied.
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Affiliation(s)
- Cristina Afonso-Olivares
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
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Gómez-Ramos MDM, Pérez-Parada A, García-Reyes JF, Fernández-Alba AR, Agüera A. Use of an accurate-mass database for the systematic identification of transformation products of organic contaminants in wastewater effluents. J Chromatogr A 2011; 1218:8002-12. [PMID: 21955781 DOI: 10.1016/j.chroma.2011.09.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/30/2011] [Accepted: 09/02/2011] [Indexed: 10/17/2022]
Abstract
In this article, a systematic approach is proposed to assist and simplify the identification of transformation products (TPs) of organic contaminants. This approach is based on the use of characteristic fragmentation undergone by organic contaminants during MS/MS fragmentation events, and the relationship and consistency with the transformations experimented by these chemicals in the environment or during water treatment processes. With this in mind, a database containing accurate-mass information of 147 compounds and their main fragments generated by CID MS/MS fragmentation experiments was created using an LC-QTOF-MS/MS system. The developed database was applied to the identification of tentative TPs and related unexpected compounds in eight wastewater effluent samples. The approach comprises basically three stages: (a) automatic screening, (b) identification of possible TPs and (c) confirmation by MS/MS analysis. Parameters related to the search of compounds in the database have been optimized and their dependence with the exhaustiveness of the study evaluated. Eight degradation products, from the pharmaceuticals acetaminophen, amoxicillin, carbamazepine, erythromycin and azithromycin and from the pesticide diazinon, were identified with a high grade of accuracy. Three of them were confirmed by analysis of the corresponding analytical standards.
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Affiliation(s)
- María del Mar Gómez-Ramos
- University of Almería, Department of Hydrogeology and Analytical Chemistry, Pesticide Residue Research Group, 04120 La Cañada de San Urbano, Almería, Spain
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Howard PH, Muir DCG. Identifying new persistent and bioaccumulative organics among chemicals in commerce II: pharmaceuticals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:6938-46. [PMID: 21740030 DOI: 10.1021/es201196x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The goal of this study was to identify commercial pharmaceuticals that might be persistent and bioaccumulative (P&B) and that were not being considered in current wastewater and aquatic environmental measurement programs. We developed a database of 3193 pharmaceuticals from two U.S. Food and Drug Administration (FDA) databases and some lists of top ranked or selling drugs. Of the 3193 pharmaceuticals, 275 pharmaceuticals have been found in the environment and 399 pharmaceuticals were, based upon production volumes, designated as high production volume (HPV) pharmaceuticals. All pharmaceuticals that had reported chemical structures were evaluated for potential bioaccumulation (B) or persistence (P) using quantitative structure property relationships (QSPR) or scientific judgment. Of the 275 drugs detected in the environment, 92 were rated as potentially bioaccumulative, 121 were rated as potentially persistent, and 99 were HPV pharmaceuticals. After removing the 275 pharmaceuticals previously detected in the environment, 58 HPV compounds were identified that were both P&B and 48 were identified as P only. Of the non-HPV compounds, 364 pharmaceuticals were identified that were P&B. This study has yielded some interesting and probable P&B pharmaceuticals that should be considered for further study.
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Affiliation(s)
- Philip H Howard
- SRC, Inc. Chemical, Biological, and Environmental Center (CBEC), 7502 Round Pond Road, North Syracuse, New York, USA.
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Elskens M, Baston DS, Stumpf C, Haedrich J, Keupers I, Croes K, Denison MS, Baeyens W, Goeyens L. CALUX measurements: statistical inferences for the dose-response curve. Talanta 2011; 85:1966-73. [PMID: 21872045 DOI: 10.1016/j.talanta.2011.07.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 06/22/2011] [Accepted: 07/07/2011] [Indexed: 11/15/2022]
Abstract
Chemical Activated LUciferase gene eXpression [CALUX] is a reporter gene mammalian cell bioassay used for detection and semi-quantitative analyses of dioxin-like compounds. CALUX dose-response curves for 2,3,7,8-tetrachlorodibenzo-p-dioxin [TCDD] are typically smooth and sigmoidal when the dose is portrayed on a logarithmic scale. Non-linear regression models are used to calibrate the CALUX response versus TCDD standards and to convert the sample response into Bioanalytical EQuivalents (BEQs). Several complications may arise in terms of statistical inference, specifically and most important is the uncertainty assessment of the predicted BEQ. This paper presents the use of linear calibration functions based on Box-Cox transformations to overcome the issue of uncertainty assessment. Main issues being addressed are (i) confidence and prediction intervals for the CALUX response, (ii) confidence and prediction intervals for the predicted BEQ-value, and (iii) detection/estimation capabilities for the sigmoid and linearized models. Statistical comparisons between different calculation methods involving inverse prediction, effective concentration ratios (ECR(20-50-80)) and slope ratio were achieved with example datasets in order to provide guidance for optimizing BEQ determinations and expand assay performance with the recombinant mouse hepatoma CALUX cell line H1L6.1c3.
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Affiliation(s)
- M Elskens
- Laboratorium voor Analytische en Milieu Chemie, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.
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Campbell IS, Ton AT, Mulligan CC. Direct detection of pharmaceuticals and personal care products from aqueous samples with thermally-assisted desorption electrospray ionization mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:1285-1293. [PMID: 21953111 DOI: 10.1007/s13361-011-0144-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Revised: 03/24/2011] [Accepted: 03/27/2011] [Indexed: 05/31/2023]
Abstract
An ambient mass spectrometric method based on desorption electrospray ionization (DESI) has been developed to allow rapid, direct analysis of contaminated water samples, and the technique was evaluated through analysis of a wide array of pharmaceutical and personal care product (PPCP) contaminants. Incorporating direct infusion of aqueous sample and thermal assistance into the source design has allowed low ppt detection limits for the target analytes in drinking water matrices. With this methodology, mass spectral information can be collected in less than 1 min, consuming ~100 μL of total sample. Quantitative ability was also demonstrated without the use of an internal standard, yielding decent linearity and reproducibility. Initial results suggest that this source configuration is resistant to carryover effects and robust towards multi-component samples. The rapid, continuous analysis afforded by this method offers advantages in terms of sample analysis time and throughput over traditional hyphenated mass spectrometric techniques.
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Affiliation(s)
- Ian S Campbell
- Department of Chemistry, Illinois State University, Normal, IL 61790, USA
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Identification of biotransformation products of macrolide and fluoroquinolone antimicrobials in membrane bioreactor treatment by ultrahigh-performance liquid chromatography/quadrupole time-of-flight mass spectrometry. Anal Bioanal Chem 2011; 401:353-63. [DOI: 10.1007/s00216-011-5060-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 04/22/2011] [Accepted: 04/25/2011] [Indexed: 11/27/2022]
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Kern S, Singer H, Hollender J, Schwarzenbach RP, Fenner K. Assessing exposure to transformation products of soil-applied organic contaminants in surface water: comparison of model predictions and field data. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:2833-2841. [PMID: 21370857 DOI: 10.1021/es102537b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Transformation products (TPs) of chemicals released to soil, for example, pesticides, are regularly detected in surface and groundwater with some TPs even dominating observed pesticide levels. Given the large number of TPs potentially formed in the environment, straightforward prioritization methods based on available data and simple, evaluative models are required to identify TPs with a high aquatic exposure potential. While different such methods exist, none of them has so far been systematically evaluated against field data. Using a dynamic multimedia, multispecies model for TP prioritization, we compared the predicted relative surface water exposure potential of pesticides and their TPs with experimental data for 16 pesticides and 46 TPs measured in a small river draining a Swiss agricultural catchment. Twenty TPs were determined quantitatively using solid-phase extraction liquid chromatography mass spectrometry (SPE-LC-MS/MS), whereas the remaining 26 TPs could only be detected qualitatively because of the lack of analytical reference standards. Accordingly, the two sets of TPs were used for quantitative and qualitative model evaluation, respectively. Quantitative comparison of predicted with measured surface water exposure ratios for 20 pairs of TPs and parent pesticides indicated agreement within a factor of 10, except for chloridazon-desphenyl and chloridazon-methyl-desphenyl. The latter two TPs were found to be present in elevated concentrations during baseflow conditions and in groundwater samples across Switzerland, pointing toward high concentrations in exfiltrating groundwater. A simple leaching relationship was shown to qualitatively agree with the observed baseflow concentrations and to thus be useful in identifying TPs for which the simple prioritization model might underestimate actual surface water concentrations. Application of the model to the 26 qualitatively analyzed TPs showed that most of those TPs categorized as exhibiting a high aquatic exposure potential could be confirmed to be present in the majority of water samples investigated. On the basis of these results, we propose a generally applicable, model-based approach to identify those TPs of soil-applied organic contaminants that exhibit a high aquatic exposure potential to prioritize them for higher-tier, experimental investigations.
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Affiliation(s)
- Susanne Kern
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
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39
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Wu J, Zhang L, Yang Z. A Review on the Analysis of Emerging Contaminants in Aquatic Environment. Crit Rev Anal Chem 2010. [DOI: 10.1080/10408347.2010.515467] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Krauss M, Singer H, Hollender J. LC-high resolution MS in environmental analysis: from target screening to the identification of unknowns. Anal Bioanal Chem 2010; 397:943-51. [PMID: 20232059 DOI: 10.1007/s00216-010-3608-9] [Citation(s) in RCA: 501] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 02/19/2010] [Accepted: 02/21/2010] [Indexed: 11/29/2022]
Abstract
This article provides an overview of the state-of-the-art and future trends of the application of LC-high resolution mass spectrometry to the environmental analysis of polar micropollutants. Highly resolved and accurate hybrid tandem mass spectrometry such as quadrupole/time-of-flight and linear ion trap/orbitrap technology allows for a more reliable target analysis with reference standards, a screening for suspected analytes without reference standards, and a screening for unknowns. A reliable identification requires both high resolving power and high mass spectral accuracy to increase selectivity against the matrix background and for a correct molecular formula assignment to unknown compounds. For the identification and structure elucidation of unknown compounds within a reasonable time frame and with a reasonable soundness, advanced automated software solutions as well as improved prediction systems for theoretical fragmentation patterns, retention times, and ionization behavior are needed.
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Affiliation(s)
- Martin Krauss
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
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Quintana JB, Rodil R, López-Mahía P, Muniategui-Lorenzo S, Prada-Rodríguez D. Investigating the chlorination of acidic pharmaceuticals and by-product formation aided by an experimental design methodology. WATER RESEARCH 2010; 44:243-55. [PMID: 19800649 DOI: 10.1016/j.watres.2009.09.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Revised: 08/29/2009] [Accepted: 09/05/2009] [Indexed: 05/05/2023]
Abstract
The degradation of seven acidic drugs and two metabolites during chlorination was investigated by liquid chromatography-mass spectrometry (LC-MS). A triple-quadrupole (QqQ) system was used to follow the time course of the pharmaceuticals and by-products, while a quadrupole time-of-flight (Q-TOF) system was also used for the identification of the by-products. Under strong chlorination conditions (10mg/L Cl(2), 24h), only four of the target compounds were significantly degraded: salicylic acid, naproxen, diclofenac and indomethacine. The degradation kinetics of these four compounds were investigated at different concentrations of chlorine, bromide and pH by means of a Box-Behnken experimental design. Depending on these factors, measured pseudo-first order half-lives were in the ranges: 23-573h for salicylic acid, 13-446min for naproxen, 5-328min for diclofenac and 0.4-13.4min for indomethacine. Also, it was observed that chlorine concentration was the overall most significant factor, followed by the bromide concentration (except for indomethacine), resulting in increased degradation kinetics as they are increased. The degradation path of salicylic acid, naproxen and diclofenac consisted of aromatic substitution of one or two hydrogens by chlorine and/or bromide. Moreover, for diclofenac, two other by-products corresponding to a decarboxylation/hydroxylation pathway from the monohalogenated products were also identified. On the other hand, indomethacine degradation did not lead to halogenation products but to oxidation ones. The investigation of these by-products in real samples by LC-MS/MS (QqQ) showed that the halogenated derivates of salicylic acid occurred in all the drinking water and wastewater samples analysed.
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Affiliation(s)
- José Benito Quintana
- Department of Analytical Chemistry, Nutrition and Food Sciences, IIAA - Institute for Food Analysis and Research, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Daughton CG. Pharmaceutical Ingredients in Drinking Water: Overview of Occurrence and Significance of Human Exposure. ACS SYMPOSIUM SERIES 2010. [DOI: 10.1021/bk-2010-1048.ch002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- C. G. Daughton
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, 944 East Harmon Avenue, Las Vegas, NV 89119, USA
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Kosjek T, Andersen HR, Kompare B, Ledin A, Heath E. Fate of carbamazepine during water treatment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:6256-61. [PMID: 19746722 DOI: 10.1021/es900070h] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Seven transformation products of carbamazepine generated by at least one of three common water treatment technologies (UV-radiation, oxidation with chlorine dioxide (ClO2), and biological treatment with activated sludge) were identified by complementary use of ion trap, single quadrupole, and quadrupole-time-of-flight mass spectrometers. Acridine was formed during all of the three treatment processes, while acridine 9-carbaldehyde was identified as an intermediate during ClO2 oxidation. Further treatment of acridine with ClO2 produced 9-hydroxy-acridine. UV-treatment resulted in the formation of acridone, hydroxy-(9H,10H)-acridine-9-carbaldehyde, acridone-N-carbaldehyde, and 1-(2-benzaldehyde)-(1H,3H)-quinazoline-2,4-dione, while biological breakdown of acridine yielded acridone. In parallel, the transformation product iminostilbene was observed during sample analysis. In addition, this study compared the treatment technologies according to the removal of carbamazepine and the production and decay of its transformation products. The most successful method for the removal of carbamazepine was UV treatment while acridine and acridone were more susceptible to biological treatment. Therefore, based on the enhanced biodegradability of carbamazepine residues achieved by UV irradiation, we propose a coupled treatment technology involving an initial UV treatment step followed by biological treatment which may satisfactorily remove the parent compound and its transformation products.
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Affiliation(s)
- Tina Kosjek
- Department of Environmental Sciences, Jozef Stefan Institute, Jamova 39, Ljubljana, Slovenia
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44
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Blasco C, Picó Y. Prospects for combining chemical and biological methods for integrated environmental assessment. Trends Analyt Chem 2009. [DOI: 10.1016/j.trac.2009.04.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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45
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Complementary mass spectrometry and bioassays for evaluating pharmaceutical-transformation products in treatment of drinking water and wastewater. Trends Analyt Chem 2009. [DOI: 10.1016/j.trac.2009.02.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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Affiliation(s)
- Soledad Rubio
- Department of Analytical Chemistry, Facultad de Ciencias, Edificio Anexo Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain
| | - Dolores Pérez-Bendito
- Department of Analytical Chemistry, Facultad de Ciencias, Edificio Anexo Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain
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Kagle J, Porter AW, Murdoch RW, Rivera-Cancel G, Hay AG. Biodegradation of pharmaceutical and personal care products. ADVANCES IN APPLIED MICROBIOLOGY 2009; 67:65-108. [PMID: 19245937 DOI: 10.1016/s0065-2164(08)01003-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Medical treatments and personal hygiene lead to the steady release of pharmaceutical and personal care products (PPCPs) into the environment. Some of these PPCPs have been shown to have detrimental environmental effects and could potentially impact human health. Understanding the biological transformation of PPCPs is essential for accurately determining their ultimate environmental fate, conducting accurate risk assessments, and improving PPCP removal. We summarize the current literature concerning the biological transformation of PPCPs in wastewater treatment plants, the environment, and by pure cultures of bacterial isolates. Although some PPCPs, such as ibuprofen, are readily degraded under most studied conditions, others, such as carbamazepine, tend to be recalcitrant. This variation in the biodegradability of PPCPs can be attributed to structural differences, because PPCPs are classified by application, not chemical structure. The degradation pathways of octylphenol by Sphingomonas sp. strain PWE1, ibuprofen by Sphingomonas sp. strain Ibu-2, and DEET by Pseudomonas putida DTB are discussed in more detail.
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Affiliation(s)
- Jeanne Kagle
- Department of Biology, Mansfield University, Mansfield, Pennsylvania, USA
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48
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Wong CS, MacLeod SL. JEM spotlight: recent advances in analysis of pharmaceuticals in the aquatic environment. ACTA ACUST UNITED AC 2009; 11:923-36. [PMID: 19436850 DOI: 10.1039/b819464e] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both ecosystem and human health rely on clean, abundant supplies of water, thus many classes of potential pollutants are regulated. In recent years, the possible risks associated with largely uncontrolled inputs of pharmaceuticals to rivers, lakes, groundwater, and coastal waters, mainly via wastewater, have been a focus of much research. During this time, our capacity to sequester, identify, and quantify pharmaceuticals in environmental matrices has improved. Devices have emerged to allow passive uptake of drugs to augment or replace laborious grab sampling. Advances in sample preparation have streamlined extraction procedures and removed interfering matrix components. New instrumental techniques have allowed faster, more accurate and sensitive detection of drugs in water samples. This review highlights all of these advances, from sample collection to instrumental analysis, which will continue to help us better understand the fate and effects of pharmaceuticals in aquatic systems.
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Affiliation(s)
- Charles S Wong
- Environmental Studies Program and Department of Chemistry, Richardson College for the Environment, University of Winnipeg, Winnipeg, MB, R3B 2E9, Canada.
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Gros M, Petrović M, Barceló D. Tracing Pharmaceutical Residues of Different Therapeutic Classes in Environmental Waters by Using Liquid Chromatography/Quadrupole-Linear Ion Trap Mass Spectrometry and Automated Library Searching. Anal Chem 2008; 81:898-912. [DOI: 10.1021/ac801358e] [Citation(s) in RCA: 268] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meritxell Gros
- Department of Environmental Chemistry, IIQAB-CSIC, c/Jordi Girona 18-26, 08034 Barcelona, Spain, Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 80010 Barcelona, Spain, and Institut Catalàde Recerca de l’Aigua (ICRA), c/ Pic de Peguera 15, 17003 Girona, Spain
| | - Mira Petrović
- Department of Environmental Chemistry, IIQAB-CSIC, c/Jordi Girona 18-26, 08034 Barcelona, Spain, Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 80010 Barcelona, Spain, and Institut Catalàde Recerca de l’Aigua (ICRA), c/ Pic de Peguera 15, 17003 Girona, Spain
| | - Damià Barceló
- Department of Environmental Chemistry, IIQAB-CSIC, c/Jordi Girona 18-26, 08034 Barcelona, Spain, Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 80010 Barcelona, Spain, and Institut Catalàde Recerca de l’Aigua (ICRA), c/ Pic de Peguera 15, 17003 Girona, Spain
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50
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Kosjek T, Žigon D, Kralj B, Heath E. The use of quadrupole-time-of-flight mass spectrometer for the elucidation of diclofenac biotransformation products in wastewater. J Chromatogr A 2008; 1215:57-63. [DOI: 10.1016/j.chroma.2008.10.111] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Revised: 10/13/2008] [Accepted: 10/22/2008] [Indexed: 11/25/2022]
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