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Lan F, Wang X, Wang X, Ruan Y, Ding L, Liu D, Zhang T, Wang J. Simultaneous determination of four fungicide residues in figs using liquid chromatography tandem mass spectrometry. Biomed Chromatogr 2024; 38:e5935. [PMID: 38924114 DOI: 10.1002/bmc.5935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/25/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024]
Abstract
Dissipative behavior and final residue levels of difenoconazole, prochloraz, propiconazole, and pyraclostrobin in figs were investigated using field trials and laboratory assays. A three-factor, three-level orthogonal test was designed to optimize the pretreatment conditions of the method. A method was established using high-performance liquid chromatography tandem mass spectrometry for the determination of difenoconazole, prochloraz, propiconazole, and pyraclostrobin residues in figs. The limit of quantification for all four targets in figs was 0.002 mg/kg. Difenoconazole, prochloraz, propiconazole, and pyraclostrobin are readily digestible pesticides in figs with half-lives of 6.4, 6.2, 4.8, and 7.9 days, respectively. Residues of difenoconazole, prochloraz, propiconazole, and pyraclostrobin in figs were below the European Union established residue levels of 0.1, 0.03, 0.01, and 0.02 mg/kg, respectively, at day 7 after application. Pyraclostrobin, propiconazole, difenoconazole, and prochloraz were applied twice at doses of 75, 125, 150, and 200 mg a.i./kg at 7-day intervals, and the residues of the four fungicides in figs were acceptable 7 days after the last application. Therefore, the safety interval can be set at 7 days for 70% difenoconazole-prochloraz wettable powder and 40% pyraclostrobin-propiconazole aqueous emulsion according to the protocol.
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Affiliation(s)
- Feng Lan
- Yantai Key Laboratory of Quality Safety and Nutrition of Characteristic Fruits, Quality Inspection Center, Yantai Academy of Agricultural Sciences in Shandong Province, Yantai, P. R. China
| | - Xinyu Wang
- Yantai Key Laboratory of Quality Safety and Nutrition of Characteristic Fruits, Quality Inspection Center, Yantai Academy of Agricultural Sciences in Shandong Province, Yantai, P. R. China
| | - Xuejing Wang
- Yantai Key Laboratory of Quality Safety and Nutrition of Characteristic Fruits, Quality Inspection Center, Yantai Academy of Agricultural Sciences in Shandong Province, Yantai, P. R. China
| | - Yinwei Ruan
- Regulatory Affair Department, Shandong Cynda Chemical Company Limited, Jinan, P. R. China
| | - Li Ding
- General Section, Weihai Academy of Agricultural Sciences in Shandong Province, Weihai, P. R. China
| | - Daliang Liu
- Yantai Key Laboratory of Quality Safety and Nutrition of Characteristic Fruits, Quality Inspection Center, Yantai Academy of Agricultural Sciences in Shandong Province, Yantai, P. R. China
| | - Tongliang Zhang
- Regulatory Affair Department, Shandong Cynda Chemical Company Limited, Jinan, P. R. China
| | - Jianping Wang
- Yantai Key Laboratory of Quality Safety and Nutrition of Characteristic Fruits, Quality Inspection Center, Yantai Academy of Agricultural Sciences in Shandong Province, Yantai, P. R. China
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2
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Galletto M, Ververi C, Massano M, Alladio E, Vincenti M, Salomone A. Development and validation of the UHPLC-MS/MS method for the quantitative determination of 25 PFAS in dried blood spots. Anal Bioanal Chem 2024:10.1007/s00216-024-05484-6. [PMID: 39160438 DOI: 10.1007/s00216-024-05484-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 08/01/2024] [Accepted: 08/07/2024] [Indexed: 08/21/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are anthropogenic fluorine-containing compounds largely used in industrial and consumer applications. They tend to bioaccumulate in the human body after intake from various sources in daily life. Following repeated exposure to PFAS, a broad range of adverse health outcomes has been reported. Consequently, monitoring PFAS levels in human blood is of paramount importance for public health policies. In contrast with traditional venipuncture, dried blood spots (DBS) constitute a reliable, cheap, and less invasive technique to allow microsampling by capillary blood collected on a specific device. This work aimed to develop and validate an innovative analytical method, combining quantitative DBS with UHPLC-MS/MS instrumentation to identify and quantify 25 PFAS. The extraction procedure was developed and optimized within the range 2-100 ng/mL. Specifically, fortified blood was applied on Capitainer®B devices providing 10 μL of blood volume through a microfluidic channel. After 3 h of drying, the extraction was performed by methanol under sonication, followed by centrifugation. Then, the extraction solvent was evaporated; the residue was reconstituted with the mobile phase solution. The validated method evidenced good sensitivity, with limits of detection ranging from 0.4 ng/mL (PFODA, PFOS) to 1.0 ng/mL (PFOA, 3,6-OPFHpA). The ± 20% acceptability criteria established for intra- and inter-day precision and accuracy were fulfilled for all analytes. High recovery-above 80%-was recorded, whereas significant matrix effect resulted in ion enhancement (> 50%) for 13 analytes. In conclusion, the proposed workflow proved to be reliable, fit for purpose, and easily adaptable in the laboratory routine.
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Affiliation(s)
| | | | - Marta Massano
- Department of Chemistry, University of Turin, Turin, Italy
| | | | - Marco Vincenti
- Department of Chemistry, University of Turin, Turin, Italy
- Centro Regionale Antidoping, Orbassano, TO, Italy
| | - Alberto Salomone
- Department of Chemistry, University of Turin, Turin, Italy
- Centro Regionale Antidoping, Orbassano, TO, Italy
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3
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Moulahoum H, Ghorbanizamani F. The LOD paradox: When lower isn't always better in biosensor research and development. Biosens Bioelectron 2024; 264:116670. [PMID: 39151260 DOI: 10.1016/j.bios.2024.116670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 08/06/2024] [Accepted: 08/12/2024] [Indexed: 08/19/2024]
Abstract
Biosensor research has long focused on achieving the lowest possible Limits of Detection (LOD), driving significant advances in sensitivity and opening up new possibilities in analysis. However, this intense focus on low LODs may not always meet the practical needs or suit the actual uses of these devices. While technological improvements are impressive, they can sometimes overlook important factors such as detection range, ease of use, and market readiness, which are vital for biosensors to be effective in real-world applications. This review advocates for a balanced approach to biosensor development, emphasizing the need to align technological advancements with practical utility. We delve into various applications, including the detection of cancer biomarkers, pathology-related biomarkers, and illicit drugs, illustrating the critical role of LOD within these contexts. By considering clinical needs and broader design aspects like cost-effectiveness, sustainability, and regulatory compliance, we argue that integrating technical progress with practicality will enhance the impact of biosensors. Such an approach ensures that biosensors are not only technically sound but also widely useable and beneficial in real-world applications. Addressing the diverse analytical parameters alongside user expectations and market demands will likely maximize the real-world impact of biosensors.
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Affiliation(s)
- Hichem Moulahoum
- Biochemistry Department, Faculty of Science, Ege University, 35100, Izmir, Turkiye.
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Goulart AC, Rodrigues AAZ, Heleno FF, Faria AMD, Goulart SM, Queiroz MELRD. Liquid-liquid and solid-liquid extractions with low-temperature partitioning - A review. Anal Chim Acta 2024; 1316:342795. [PMID: 38969398 DOI: 10.1016/j.aca.2024.342795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 07/07/2024]
Abstract
The paper represents the first review of solvent extraction techniques utilizing the low-temperature partitioning/purification (LTP) approach. Initially conceived in the 1960s to purify extracts from fatty matrices, it wasn't until the 2000s that this approach received increasing attention for its efficacy in extracting organic compounds from diverse samples, often without additional cleanup steps. This review covers a brief history and proposes a mechanism for LTP-based solvent extraction. Furthermore, the principal practical issues of the technique are spotlighted, elucidating the factors influencing extraction efficiency. The advantages, limitations, and potential combinations with other extraction techniques of the LTP-based solvent extractions are analyzed. The versatility of the LTP approach is demonstrated by its applications in extracting various compounds from food, environmental, and biological samples, emphasizing its potential for rapid sample preparation with minimal steps, few chemicals, and minimal analyst intervention.
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Affiliation(s)
| | | | - Fernanda Fernandes Heleno
- Departamento de Química, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/n, 36570-000, Viçosa, MG, Brazil
| | - Anizio Marcio de Faria
- Instituto de Ciências Exatas e Naturais Do Pontal, Universidade Federal de Uberlândia, Rua Vinte, 1600, Bairro Tupã, 38304-402, Ituiutaba, MG, Brazil
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5
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Schneider E, Neumann A, Chacón-Patiño ML, Somero M, Ruppel MM, Ihalainen M, Köster K, Sippula O, Czech H, Rüger CP, Zimmermann R. Accessing the Low-Polar Molecular Composition of Boreal and Arctic Peat-Burning Organic Aerosol via Thermal Analysis and Ultrahigh-Resolution Mass Spectrometry: Structural Motifs and Their Formation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:1713-1725. [PMID: 38950165 DOI: 10.1021/jasms.4c00120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Peatland fires emit organic carbon-rich particulate matter into the atmosphere. Boreal and Arctic peatlands are becoming more vulnerable to wildfires, resulting in a need for better understanding of the emissions of these special fires. Extractable, nonpolar, and low-polar organic aerosol species emitted from laboratory-based boreal and Arctic peat-burning experiments are analyzed by direct-infusion atmospheric pressure photoionization (APPI) ultrahigh-resolution mass spectrometry (UHRMS) and compared to time-resolved APPI UHRMS evolved gas analysis from the thermal analysis of peat under inert nitrogen (pyrolysis) and oxidative atmosphere. The chemical composition is characterized on a molecular level, revealing abundant aromatic compounds that partially contain oxygen, nitrogen, or sulfur and are formed at characteristic temperatures. Two main structural motifs are identified, single core and multicore, and their temperature-dependent formation is assigned to the thermal degradation of the lignocellulose building blocks and other parts of peat.
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Affiliation(s)
- Eric Schneider
- Joint Mass Spectrometry Centre, Department of Analytical and Technical Chemistry, University of Rostock, 18059 Rostock, Germany
- Department Life, Light & Matter (LL&M), University of Rostock, 18059 Rostock, Germany
| | - Anika Neumann
- Joint Mass Spectrometry Centre, Department of Analytical and Technical Chemistry, University of Rostock, 18059 Rostock, Germany
- Department Life, Light & Matter (LL&M), University of Rostock, 18059 Rostock, Germany
| | - Martha L Chacón-Patiño
- National High Magnetic Field Laboratory, Florida State University, 32310 Tallahassee, United States
| | - Markus Somero
- Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Meri M Ruppel
- Atmospheric Composition Unit, Finnish Meteorological Institute, 00014 Helsinki, Finland
| | - Mika Ihalainen
- Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Kajar Köster
- Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Olli Sippula
- Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
- Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland
| | - Hendryk Czech
- Joint Mass Spectrometry Centre, Department of Analytical and Technical Chemistry, University of Rostock, 18059 Rostock, Germany
- Joint Mass Spectrometry Centre, Cooperation Group "Comprehensive Molecular Analytics" (CMA), Helmholtz Centre Munich, 85764 Neuherberg, Germany
| | - Christopher P Rüger
- Joint Mass Spectrometry Centre, Department of Analytical and Technical Chemistry, University of Rostock, 18059 Rostock, Germany
- Department Life, Light & Matter (LL&M), University of Rostock, 18059 Rostock, Germany
| | - Ralf Zimmermann
- Joint Mass Spectrometry Centre, Department of Analytical and Technical Chemistry, University of Rostock, 18059 Rostock, Germany
- Department Life, Light & Matter (LL&M), University of Rostock, 18059 Rostock, Germany
- Joint Mass Spectrometry Centre, Cooperation Group "Comprehensive Molecular Analytics" (CMA), Helmholtz Centre Munich, 85764 Neuherberg, Germany
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6
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Pilařová V, Plachká K, Svec F, Nováková L. Matrix effects in ultra-high performance supercritical fluid chromatography-mass spectrometry analysis of vitamin E in plasma: The effect of sample preparation and data processing. Talanta 2024; 280:126658. [PMID: 39137659 DOI: 10.1016/j.talanta.2024.126658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 08/15/2024]
Abstract
The approaches to matrix effects determination and reduction in ultra-high performance supercritical fluid chromatography with mass spectrometry detection have been evaluated in this study using different sample preparation methods and investigation of different calibration models. Five sample preparation methods, including protein precipitation, liquid-liquid extraction, supported liquid extraction, and solid phase extraction based on both "bind and elute" and "interferent removal" modes, were optimized with an emphasis on the matrix effects and recovery of 8 forms of vitamin E, including α-, β-, γ-, and δ-tocopherols and tocotrienols, from plasma. The matrix effect evaluation included the use and comparison of external and internal calibration using three models, i.e., least square with no transformation and no weighting (1/x0), with 1/x2 weighting, and with logarithmic transformation. The calibration model with logarithmic transformation provided the lowest %-errors and the best fits. Moreover, the type of the calibration model significantly affected not only the fit of the data but also the matrix effects when evaluating them based on the comparison of calibration curve slopes. Indeed, based on the used calibration model, the matrix effects calculated from calibration slopes ranged from +92% to - 72% for α-tocopherol and from -77% to +19% in the case of δ-tocotrienol. Thus, it was crucial to calculate the matrix effect by Matuszewski's post-extraction approach at six concentration levels. Indeed, a strong concentration dependence was observed for all optimized sample preparation methods, even if the stable isotopically labelled internal standards (SIL-IS) were used for compensation. The significant differences between individual concentration levels and compounds were observed, even when the tested calibration range covered only one order of magnitude. In methods with wider calibration ranges, the inappropriate use of calibration slope comparison instead of the post-extraction addition approach could result in false negative results of matrix effects. In the selected example of vitamin E, solid-phase extraction was the least affected by matrix effects when used in interferent removal mode, but supported liquid extraction resulted in the highest recoveries. We showed that the calibration model, the use of a SIL-IS, and the analyte concentration level played a crucial role in the matrix effects. Moreover, the matrix effects can significantly differ for compounds with similar physicochemical properties and close retention times. Thus, in all bioanalytical applications, where different analytes are typically determined in one analytical run, it is necessary to carefully select the data processing in addition to the method for the sample preparation, SIL-IS, and chromatography.
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Affiliation(s)
- Veronika Pilařová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 03, Hradec Králové, Czech Republic
| | - Kateřina Plachká
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 03, Hradec Králové, Czech Republic
| | - Frantisek Svec
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 03, Hradec Králové, Czech Republic
| | - Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 03, Hradec Králové, Czech Republic.
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7
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Mesa-Ramos L, Palacios OA, Adame-Gallegos JR, Chávez-Flores D, Nevárez-Moorillón GV. Assessing antibiotic residues in sediments from mangrove ecosystems: A review. MARINE POLLUTION BULLETIN 2024; 204:116512. [PMID: 38810504 DOI: 10.1016/j.marpolbul.2024.116512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/31/2024]
Abstract
Antibiotics' widespread and abusive use in aquaculture and livestock leads to extensive environmental dissemination and dispersion, consequently increasing antibiotic-resistant bacteria in marine ecosystems. Hence, there is an increased need for efficient methods for identifying and quantifying antibiotic residues in soils and sediments. From a review of the last 20 years, we propose and compare different chromatographic techniques for detecting and quantifying antibiotics in sediment samples from marine ecosystems, particularly in mangrove forest sediments. The methods typically include three stages: extraction of antibiotics from the solid matrix, cleaning, and concentration of samples before quantification. We address the leading causes of the occurrence of antibiotics in marine ecosystem sediments and analyze the most appropriate methods for each analytical stage. Ultimately, selecting a method for identifying antibiotic residues depends on multiple factors, ranging from the nature and physicochemical properties of the analytes to the availability of the necessary equipment and the available resources.
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Affiliation(s)
- Liber Mesa-Ramos
- Facultad de Ciencias Químicas Universidad Autónoma de Chihuahua. Chihuahua, Chihuahua CP 31125, Mexico
| | - Oskar A Palacios
- Facultad de Ciencias Químicas Universidad Autónoma de Chihuahua. Chihuahua, Chihuahua CP 31125, Mexico
| | - Jaime Raúl Adame-Gallegos
- Facultad de Ciencias Químicas Universidad Autónoma de Chihuahua. Chihuahua, Chihuahua CP 31125, Mexico
| | - David Chávez-Flores
- Facultad de Ciencias Químicas Universidad Autónoma de Chihuahua. Chihuahua, Chihuahua CP 31125, Mexico
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8
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Carolina Souza Andrada Anconi A, de Jesus Fonseca JL, Antônio Nunes C. A digital image-based colorimetric method for measuring free acidity in edible vegetable oils. Food Chem 2024; 443:138555. [PMID: 38281417 DOI: 10.1016/j.foodchem.2024.138555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 01/30/2024]
Abstract
The standard method used to quantify free acidity (FA) in vegetable oil is neutralization titration, which requires many toxic chemicals and depends on an analyst's experience in detecting endpoints. Here, a digital image colorimetry (DIC) method using a smartphone camera was developed to measure FA in vegetable oils. A cupric acetate solution was used to produce the colorimetric reaction. The coloured solutions were imaged, and R values (from the RGB colour system) were calibrated against the respective FAs in the standards. The FA values of the samples were determined by standard addition calibration. These results were compared to measurements of FA obtained by the standard titrimetric method. An excellent correlation was obtained, with an R2 of 0.98 and a mean absolute error of 0.06%. The chemicals needed for analysis were reduced by approximately 90%. Thus, DIC is a less subjective and more economical method for determining FA in vegetable oils.
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Affiliation(s)
| | - Júlia Letícia de Jesus Fonseca
- Department of Food Science, Federal University of Lavras, University Campus, Post Office Box 3037, 37200-900, Lavras, Minas Gerais, Brazil
| | - Cleiton Antônio Nunes
- Department of Food Science, Federal University of Lavras, University Campus, Post Office Box 3037, 37200-900, Lavras, Minas Gerais, Brazil.
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9
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Costa LS, Schettino CF, Sicupira LC, de Pinho GP, Silvério FO. Determining pyroxasulfone herbicide in honey samples using liquid-liquid extraction with low temperature purification (LLE-LTP). Talanta 2024; 273:125870. [PMID: 38460423 DOI: 10.1016/j.talanta.2024.125870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/11/2024]
Abstract
Pyroxasulfone is a selective, systemic, pre-emergence herbicide which acts to inhibit weeds in potato, coffee, sugar cane, eucalyptus, and soybean plantations, among others. This active ingredient was classified by Brazilian legislation as a very dangerous product for the environment, and to date there are no studies involving the development of extraction methods for monitoring this compound in environmental matrices. Therefore, the objective of this study was to optimize and validate liquid-liquid extraction with low temperature purification followed by a gas chromatography coupled to mass spectrometry analysis to determine this herbicide in honey samples. The results showed that the best extractor phase was acetonitrile and ethyl acetate (6.5 mL:1.5 mL), with recovery rates close to 100% and relative standard deviations below 11%. The validation proved that the extraction method was selective, precise, accurate and linear in the range of 3-225 μg kg-1, reaching a limit of quantification of 3 μg kg-1, with a -25.95% matrix effect. Monitoring on real samples did not reveal episodes of environmental contamination with pyroxasulfone residue.
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Affiliation(s)
- Luma Soares Costa
- Department of Chemistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39100-000, Diamantina, Minas Gerais, Brazil
| | - Carolina Freitas Schettino
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, 39404-547, Montes Claros, Minas Gerais, Brazil
| | - Lázaro Chaves Sicupira
- Institute of Engineering, Science and Technology, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 39447-790, Janaúba, Minas Gerais, Brazil
| | - Gevany Paulino de Pinho
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, 39404-547, Montes Claros, Minas Gerais, Brazil
| | - Flaviano Oliveira Silvério
- Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, 39404-547, Montes Claros, Minas Gerais, Brazil.
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Martínez-Pérez-Cejuela H, Gionfriddo E. Evolution of Green Sample Preparation: Fostering a Sustainable Tomorrow in Analytical Sciences. Anal Chem 2024; 96:7840-7863. [PMID: 38687329 DOI: 10.1021/acs.analchem.4c01328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Affiliation(s)
- H Martínez-Pérez-Cejuela
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
| | - E Gionfriddo
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
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11
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Wang Y, Xiong D, He X, Yu L, Li G, Wang T, Liu C, Liu Z, Li Z, Gao C. Rapid and Comprehensive Analysis of 41 Harmful Substances in Multi-Matrix Products by Gas Chromatography-Mass Spectrometry Using Matrix-Matching Calibration Strategy. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2281. [PMID: 38793348 PMCID: PMC11122967 DOI: 10.3390/ma17102281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/24/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024]
Abstract
Harmful substances in consumer goods pose serious hazards to human health and the environment. However, due to the vast variety of consumer goods and the complexity of their substrates, it is difficult to simultaneously detect multiple harmful substances in different materials. This paper presents a method for the simultaneous determination of 41 harmful substances comprising 17 phthalates (PAEs), 8 organophosphate flame retardants (OPFRs), and 16 polycyclic aromatic hydrocarbons (PAHs) in five types of products using the matrix-matching calibration strategy. The method employs an efficient ultrasonic extraction procedure using a mixture of dichloromethane and methylbenzene, followed by dissolution-precipitation and analysis through gas chromatography-mass spectrometry. Compared with previous experiments, we established a universal pretreatment method suitable for multi-matrix materials to simultaneously determine multiple harmful substances. To evaluate the effects of the matrix on the experimental results, we compared neat standard solutions and matrix-matching standard solutions. The results demonstrated that all compounds were successfully separated within 30 min with excellent separation efficiency. Additionally, the linear relationships of all analytes showed strong correlation coefficients (R2) of at least 0.995, ranging from 0.02 mg/L to 20 mg/L. The average recoveries of the target compounds (spiked at three concentration levels) were between 73.6 and 124.1%, with a relative standard deviation (n = 6) varying from 1.2% to 9.9%. Finally, we tested 40 different materials from consumer products and detected 16 harmful substances in 31 samples. Overall, this method is simple and accurate, and it can be used to simultaneously determine multiple types of hazardous substances in multi-matrix materials by minimizing matrix effects, making it an invaluable tool for ensuring product safety and protecting public health.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Cuiling Gao
- Shandong Institute for Product Quality Inspection, Jinan 250102, China; (Y.W.); (D.X.); (X.H.); (L.Y.); (G.L.); (T.W.); (C.L.); (Z.L.); (Z.L.)
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12
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Peter M, Bakanov N, Mathgen X, Brühl CA, Veith M, Müller C. Multiresidue analysis of bat guano using GC-MS/MS. Anal Bioanal Chem 2024; 416:3149-3160. [PMID: 38563959 PMCID: PMC11068669 DOI: 10.1007/s00216-024-05263-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
Bats are the second largest mammalian order and are an endangered species group with a strong need for contamination monitoring. To facilitate non-invasive monitoring of the ecological burden in bat populations, a multiresidue method for the simultaneous quantification of 119 analytes including pesticides, persistent organic pollutants (POPs), active pharmaceutical ingredients (APIs), polycyclic aromatic hydrocarbons (PAHs), UV blockers, plasticizers, and other emerging pollutants in bat guano with gas chromatography tandem mass spectrometry (GC-MS/MS) was developed. Sample preparation and clean-up were performed with a modified QuEChERS approach based on DIN EN 15662. The method uses 1.00 g bat guano as sample with acetonitrile and water for liquid-liquid extraction. Phase separation is assisted by citrate-buffered salting out agent. For clean-up of the extract, primary secondary amine (PSA) was combined with graphitized carbon black (GCB). The lower limits of quantification (LLOQ) ranged between 2.5 and 250 µg kg-1. Linearity was shown in a concentration range from the respective LLOQs to 1250 µg kg-1. The median of the mean recovery was 102.4%. Precision was tested at three concentrations. Method and injection precision were adequate with a relative standard deviation (RSD) below 20%. Furthermore, the comparative analysis with LC-MS/MS demonstrated the reliability of the results and provided a valuable extension of the analytical scope. As proof of concept, three guano samples from a German nursery roost of Myotis myotis were analysed. The results show a time-dependent change in contaminant concentration, highlighting the strong need for non-invasive contamination monitoring of whole bat populations.
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Affiliation(s)
- Michelle Peter
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377, Munich, Germany
| | - Nikita Bakanov
- iES Landau, Institute of Enivonmental Sciences Landau, University Kaiserslautern-Landau, 76829, Landau, Germany
| | - Xenia Mathgen
- Department of Biogeography, Trier University, 54296, Trier, Germany
- State Office for Agriculture and Environement of Western Pomerania, 18439, Stralsund, Germany
| | - Carsten A Brühl
- iES Landau, Institute of Enivonmental Sciences Landau, University Kaiserslautern-Landau, 76829, Landau, Germany
| | - Michael Veith
- Department of Biogeography, Trier University, 54296, Trier, Germany
| | - Christoph Müller
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, 81377, Munich, Germany.
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Portet-Koltalo F, Humbert K, Cosme J, Debret M, Morin C, Le Gohlisse S. Measuring aliphatic hydrocarbons in sediments by direct thermal desorption-gas chromatography-mass spectrometry: Matrix effects and quantification challenges. J Chromatogr A 2024; 1722:464895. [PMID: 38608367 DOI: 10.1016/j.chroma.2024.464895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
Direct sample introduction thermal desorption (TD) coupled to GC-MS was investigated for the analysis of paraffinic hydrocarbons (HCs) from polluted sediments. TD-GC-MS is sometimes used for analysing paraffinic HCs from atmospheric particles but rarely for their direct desorption from sediments. So, the new TD methodology, applied to sediments, required development, optimization and validation. A definitive screening experimental design was performed to discriminate the critical factors on TD efficiency, from model sediments containing various organic matter (OM) amounts. Low molecular weight HCs had extraction behaviours markedly different from high molecular ones (HMW-HCs), but a compromise was found using very few sediment amount (5 mg), high temperature rate (55 °C min-1) and final temperature (350 °C). Linear HCs (n-C10 to n-C40) could be quantified using the matrix-matched calibration method, with very low detection limits (3.8-13.4 ng). The amount of the overall paraffinic alkanes was also determined as a sum of unresolved components between predefined equivalent carbon ranges. The developed solventless methodology was compared to an optimized solvent microwave assisted extraction (MAE). Matrix effects could be higher for TD compared to MAE but it depended on sediment matrix. When matrix effect was strong, particularly on HMW-HCs signal depletion, a dilution with pure non-porous sand was favourable for accurate quantification. The sum of resolved and unresolved HCs gave comparable results between MAE and TD extractions, with an exception of alkanes greater than C30 which were less quantitatively extracted via TD. However, TD-GC-MS was more sensitive than MAE-GC-MS. So TD-GC-MS is useful for analyzing sediments containing a great range of paraffinic HCs (C9-C34) and it has the advantages of being fully automated, with few sample preparation and operator intervention, using very low amounts of solvent, and generating few wastes.
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Affiliation(s)
- Florence Portet-Koltalo
- COBRA Laboratory UMR CNRS 6014, Normandie University, UNIROUEN, 55 rue Saint Germain, Evreux 27000, France.
| | - Kévin Humbert
- COBRA Laboratory UMR CNRS 6014, Normandie University, UNIROUEN, 55 rue Saint Germain, Evreux 27000, France; M2C Laboratory UMR 6143, Normandie University, UNIROUEN, FR CNRS 3730 SCALE, Bâtiment Blondel, Place Emile Blondel, Mont Saint Aignan CEDEX 76821, France
| | - Julie Cosme
- COBRA Laboratory UMR CNRS 6014, Normandie University, UNIROUEN, 55 rue Saint Germain, Evreux 27000, France
| | - Maxime Debret
- M2C Laboratory UMR 6143, Normandie University, UNIROUEN, FR CNRS 3730 SCALE, Bâtiment Blondel, Place Emile Blondel, Mont Saint Aignan CEDEX 76821, France
| | - Christophe Morin
- COBRA Laboratory UMR CNRS 6014, Normandie University, UNIROUEN, 55 rue Saint Germain, Evreux 27000, France
| | - Steeven Le Gohlisse
- COBRA Laboratory UMR CNRS 6014, Normandie University, UNIROUEN, 55 rue Saint Germain, Evreux 27000, France
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14
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Adenaya A, Quintero RR, Brinkhoff T, Lara-Martín PA, Wurl O, Ribas-Ribas M. Vertical distribution and risk assessment of pharmaceuticals and other micropollutants in southern North Sea coastal waters. MARINE POLLUTION BULLETIN 2024; 200:116099. [PMID: 38309177 DOI: 10.1016/j.marpolbul.2024.116099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/27/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Pharmaceutical compounds are micropollutants of emerging concern, as well as other classes of chemicals such as UV filters and artificial sweeteners. They enter marine environments via wastewater treatment plants, aquaculture runoff, hospital effluents, and shipping activities. While many studies have investigated the presence and distribution of these pollutants in numerous coastal areas, our study is the first to focus on their occurrence, spatial distribution, and vertical distribution in the sea surface microlayer (SML) and the near-surface layer of marine environments. We analyzed 62 pharmaceutical compounds, one UV filter, and six artificial sweeteners from the SML to the corresponding underlying water (0 cm, 20 cm, 50 cm, 100 cm, and 150 cm) at four stations in the southern North Sea. One station is the enclosed Jade Bay, one is the Weser estuary at Bremerhaven, and the other two stations (NS_7 and NS_8) are in the open German Bight. Jade Bay receives pollutants from surrounding wastewater treatment plants, while the Weser estuary receives pollutants from cities like Bremerhaven, which has dense populations and industrial activities. Concentrations of pharmaceutical compounds were higher in the upper water layers (from the SML to 20 cm). Eleven pharmaceutical compounds (caffeine, carbamazepine, gemfibrozil, ibuprofen, metoprolol, salicylic acid, clarithromycin, novobiocin, clindamycin, trimethoprim, and tylosin) were detected in >95 % of our samples. One UV filter (benzophenone-4) was found in 83 % and three artificial sweeteners (acesulfame, saccharin, and sucralose) in 100 % of all our samples. All artificial sweeteners posed high risks to the freshwater invertebrate Daphnia magna. Understanding the spatial and vertical distribution of pharmaceuticals and other micropollutants in marine environments may be essential in assessing their dispersal and detection in other aquatic environments.
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Affiliation(s)
- Adenike Adenaya
- Center for Marine Sensors (ZfMarS), Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany; Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstraße 114-118, 26129 Oldenburg, Germany.
| | - Ruben Rios Quintero
- Physical Chemistry Department, Faculty of Marine and Environmental Sciences, University of Cádiz, CEI·MAR, Cádiz 11510, Spain
| | - Thorsten Brinkhoff
- Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstraße 114-118, 26129 Oldenburg, Germany
| | - Pablo A Lara-Martín
- Physical Chemistry Department, Faculty of Marine and Environmental Sciences, University of Cádiz, CEI·MAR, Cádiz 11510, Spain
| | - Oliver Wurl
- Center for Marine Sensors (ZfMarS), Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
| | - Mariana Ribas-Ribas
- Center for Marine Sensors (ZfMarS), Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
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15
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He M, Wang Y, Zhang L, Mao L, Zhu L, Zheng Y, Liu X, Wu C. Optimizing Analysis Methods: Rapid and Accurate Determination of Cuaminosulfate Residues with LC-MS/MS Based on Box-Behnken Design Study. Molecules 2024; 29:794. [PMID: 38398546 PMCID: PMC10892704 DOI: 10.3390/molecules29040794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
In view of the defects in the previous detection of cuaminosulfate, which only focused on the analysis of copper ions, there is currently no analysis method available to determine the actual state of cuaminosulfate as chelated or bound. In order to investigate the dissipation and terminal residues in soil and watermelon of cuaminosulfate for food safety and environmental risk, a highly effective technique was developed to detect cuaminosulfate residues in watermelon and soil, and field experiments were conducted in China. After single-factor experiments, residual cuaminosulfate in samples was extracted by pure water, purified using a liquid-liquid approach combined with a dispersive solid-phase extraction, and detected by liquid chromatography tandem mass spectrometry (LC-MS/MS). The Box-Behnken design (BBD) study was used to find the optimal solutions for the time of liquid-liquid purification, the amount of extraction solvent, and the amounts of cleanup sorbents for the analytical method. The average recovery of the method was in the range of 80.0% to 101.1%, the average relative standard deviation (RSD) was 5.3-9.9%, and the detection limit was lower than 0.05 mg/kg. The BBD study not only improved the extraction rate of the method, but also saved time and was operated easily. The final residues of cuaminosulfate in watermelon at different sampling intervals were all lower than 0.05 mg/kg under field conditions. The cuaminosulfate in soils dissipated following exponential kinetics, with half-life values in the range of 9.39 to 12.58 days, which varied by different locations. Based on the validated method, food safety residues and soil residues can be determined rapidly and accurately.
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Affiliation(s)
- Mingyuan He
- Guangxi SPR Technology Co., Ltd., Nanning 530000, China
| | - Yuzhu Wang
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lan Zhang
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Liangang Mao
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lizhen Zhu
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xingang Liu
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chi Wu
- State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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