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Alpofead JAH, Davidson CM, Littlejohn D. On- and off-line analysis by ICP-MS to measure the bioaccessible concentration of elements in PM 10 using dynamic versions of the simplified bioaccessibility extraction test. Anal Bioanal Chem 2023; 415:2831-2848. [PMID: 37097303 DOI: 10.1007/s00216-023-04695-7] [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: 02/03/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/26/2023]
Abstract
Two dynamic versions of the simplified bioaccessibility extraction test (SBET) were developed-an off-line procedure and an on-line procedure coupled directly to ICP-MS. Batch, on-line, and off-line procedures were applied to simulated PM10 samples prepared by loading NIST SRM 2711A Montana II Soil and BGS RM 102 Ironstone Soil onto 45-mm TX40 filters widely used in air quality monitoring. Three real PM10 samples were also extracted. A polycarbonate filter holder was used as an extraction unit for the dynamic procedures. Arsenic, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn were determined in the extracts using an Agilent 7700 × ICP-MS instrument. The residual simulated PM10 samples following application of the SBET were subjected to microwave-assisted aqua regia digestion and a mass balance calculation performed with respect to digestion of a separate test portion of the SRM. Leachates were collected as subfractions for the off-line analysis or continuously introduced to the nebuliser of the ICP-MS for the on-line analysis. The mass balance was generally acceptable for all versions of the SBET. Recoveries obtained with the dynamic methods were closer to pseudototal values than those obtained in batch mode. Off-line analysis performed better than on-line analysis, except for Pb. Recoveries of bioaccessible Pb relative to the certified value in NIST SRM 2711A Montana II Soil (1110 ± 49 mg kg-1) were 99, 106, and 105% for the batch, off-line, and on-line methods, respectively. The study demonstrates that dynamic SBET can be used to measure bioaccessibility of potentially toxic elements in PM10 samples.
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Affiliation(s)
- Jawad Ali Hussein Alpofead
- College of Pharmacy, University of Thi-Qar, Nasiriyah, Iraq.
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK.
| | - Christine M Davidson
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - David Littlejohn
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
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2
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Skála J, Boahen F, Száková J, Vácha R, Tlustoš P. Arsenic and lead in soil: impacts on element mobility and bioaccessibility. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:943-959. [PMID: 34129137 DOI: 10.1007/s10653-021-01008-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
Long-term brown coal mining contributes to risk element contents in soils surrounding coal basins. However, there is a lack of bioaccessibility characterization of the risk elements in the soils at the impacted locations for estimation of the potential health risk, in relation to the effects of soil particle size and element origin. In this study, soils from different geological areas (geogenic vs. anthropogenic) were sampled around the Most brown coal basin, Czech Republic. These soils were passed through sieves to obtain seven aggregate size fractions. For an estimation of the oral bioaccessibility of As and Pb in the size fractions, the physiologically based extraction test was applied, whereas the potential pulmonary bioaccessibility of the elements was estimated by using both Gamble's and Hatch's tests. The results showed that the geochemical pattern of the investigated elements clearly separates the soil samples collected from the mountain region (mineralization from geogenic processes) from those of the basin region (extensive coal mining). For As, the results indicated that it poses higher risks in the anthropogenically affected basin region due to its higher gastro-intestinal and pulmonary bioaccessibility in soil samples in this area. A higher bioaccessibility of As in the soils was recorded in the finer grain size fractions, which are usually air-borne and can be easily ingested and/or inhaled, leading to potential health risks to humans and livestock. The opposite pattern, with a higher content on coarse particles, was recorded for Pb, indicating a potential risk of livestock in the non-forest mountainous areas.
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Affiliation(s)
- Jan Skála
- Research Institute for Soil and Water Conservation, Prague, Czech Republic
| | - Frank Boahen
- Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
| | - Jiřina Száková
- Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic.
| | - Radim Vácha
- Research Institute for Soil and Water Conservation, Prague, Czech Republic
| | - Pavel Tlustoš
- Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
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Sixto A, El-Morabit B, Trujillo-Rodríguez MJ, Carrasco-Correa EJ, Miró M. An automatic flow-through system for exploration of the human bioaccessibility of endocrine disrupting compounds from microplastics. Analyst 2021; 146:3858-3870. [PMID: 34047317 DOI: 10.1039/d1an00446h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article reports on the first attempt towards investigating the leaching rates in the human gastrointestinal (GI) tract of plastic-borne contaminants that can be ingested accidentally using physiologically relevant body fluids. Oral bioaccessibility under fasted and fed states was determined in dynamic mode exploiting an automatic flow setup. The flow system is able to mimic the fast uptake of the released species from the polymeric matrix by absorption in the human digestive system by the in-line removal of the leached species. Complex GI extractants based on the Unified Bioaccessibility Method (UBM, fasted state) and Versantvoort test (fed-state) were brought through a microplastic-loaded metal microcolumn for semi-continuous leaching of plasticizers (phthalic acid ester congeners) and monomer/antioxidant species (bisphenol A, BPA) followed by in-line solid-phase extraction and clean-up of GI extracts prior to liquid chromatography analysis. The temporal extraction profiles were fitted to a first-order kinetic model for the estimation of maximum bioaccessibility pools and apparent leaching rates. Among all studied contaminants, only BPA, dimethylphthalate and diethylphthalate were appreciably released under dynamic GI conditions from high-density polyethylene pellets (average size of 110 μm), with average bioaccessibility values spanning from 51 to 84% and 48 to 87% for UBM and Versantvoort methods, respectively. No statistically significant differences in oral bioaccessibility pools were found under fed- and fasted-state dynamic extractions. The apparent kinetic constants under the fed state were greater by ≥30% as a consequence of the effect of the larger amounts of bile salts and digestive enzymes in the Versantvoort test on the leaching rates. The estimated average daily intake, in which bioaccessibility data are contemplated, indicated that plastic materials exceeding 0.3% (w/w) BPA might pose real risks to human health.
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Affiliation(s)
- Alexandra Sixto
- Cátedra de Química Analítica, Departamento Estrella Campos, Facultad de Química, Universidad de la República, Av. Gral. Flores 2124, 11800 Montevideo, Uruguay
| | - Bilal El-Morabit
- FI-TRACE group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa kmm 7.5, E-07122 Palma de Mallorca, Spain.
| | - María José Trujillo-Rodríguez
- FI-TRACE group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa kmm 7.5, E-07122 Palma de Mallorca, Spain. and Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, Calle Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Enrique Javier Carrasco-Correa
- CLECEM group, Department of Analytical Chemistry, University of Valencia, C/Doctor Moliner, 50, E-46100 Burjassot, Valencia, Spain
| | - Manuel Miró
- FI-TRACE group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa kmm 7.5, E-07122 Palma de Mallorca, Spain.
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Carretero-Peña S, Palomo-Marín MR, Calvo-Blázquez L, Pinilla-Gil E. Optimization and validation test of a sonoreactor-assisted methodology for fast and miniaturized extraction of trace elements from soils. Talanta 2021; 221:121440. [PMID: 33076066 DOI: 10.1016/j.talanta.2020.121440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 10/23/2022]
Abstract
We have proven the overall applicability of the novel sonoreactor VialTweeter as a tool for a fast, miniaturized and economical extraction of trace elements, namely Cu, Zn, As, Cd, Pb, from soil samples, followed by ICP-MS. The proposed analytical approach applicable in the context of environmental monitoring of elemental soil pollutants, since the selected analytes are relevant pollutants whose presence in soils produces significant effects on their quality affecting animals, plants and humans. The optimum conditions for the extraction of trace metals assisted by the sonoreactor, selected by a Box-Behnken (BBD) experiment design along combined with a response surface methodology were 93% sonication amplitude, 450 s sonication time, 80% HNO3 and a solvent/sample ratio of 0.18 mL/mg. The proposed sonoreactor-assisted extraction methodology provides several advantages of respect to the standard acid digestion taken as comparison term for validation, including a shorter pretreatment time and use of less sample and reagents amounts. However, mixed validation results against the standard acid digestion (taken as a model providing accurate results) were obtained depending on the analyte, with the best results in the case of cadmium that could be measured after US extraction without systematic error respect to the standard acid digestion. Copper and lead can be determined by the proposed US extraction plus ICP-MS only after applying a correction factor based on the slope of the correlation with the standard acid digestion. US treatment for As determination can be only useable by applying a constant correction factor based on the intercept of the correlation line, whereas Zn determination requires a correction based both in the slope and intercept of the correlation line.
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Affiliation(s)
- Selena Carretero-Peña
- Department of Analytical Chemistry and IACYS, University of Extremadura, Av. De Elvas, s/n, 06006, Badajoz, Spain
| | - M R Palomo-Marín
- Consorcio Gestión Medioambiental Promedio, Diputación de Badajoz, Av. De Pardaleras, 64, 06003, Badajoz, Spain
| | - Lorenzo Calvo-Blázquez
- Department of Analytical Chemistry and IACYS, University of Extremadura, Av. De Elvas, s/n, 06006, Badajoz, Spain
| | - Eduardo Pinilla-Gil
- Department of Analytical Chemistry and IACYS, University of Extremadura, Av. De Elvas, s/n, 06006, Badajoz, Spain.
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Gregório BJR, Pereira AM, Fernandes SR, Matos E, Castanheira F, Almeida AA, Fonseca AJM, Cabrita ARJ, Segundo MA. Flow-Based Dynamic Approach to Assess Bioaccessible Zinc in Dry Dog Food Samples. Molecules 2020; 25:molecules25061333. [PMID: 32183441 PMCID: PMC7144096 DOI: 10.3390/molecules25061333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 02/04/2023] Open
Abstract
This work proposes a simple and easy-to-use flow-through system for the implementation of dynamic extractions, aiming at the evaluation of bioaccessible zinc and the characterization of leaching kinetics in dry dog food samples. The kinetic profile of Zn extraction was determined by flame atomic absorption spectroscopy and the results were fitted in an exponential function (R2 > 0.960) compatible with a two first-order reactions model. Values of fast leachable Zn ranged from 83 ± 1 to 313 ± 5 mg of Zn per kg of sample, with associated rate constants ranging from 0.162 ± 0.004 to 0.290 ± 0.014 min−1. Similar results were observed compared to the static batch extraction. The percentage of bioaccessible Zn ranged from 49.0 to 70.0%, with an average value of 58.2% in relation to total Zn content. Principal component analysis regarding the variables fast leachable Zn, associated rate constant, total Zn, and market segment, has shown that 84.6% of variance is explained by two components, where the second component (24.0%) presented loadings only for the fast leachable Zn and associated rate constant. The proposed method is suitable for the fast evaluation (<1 h) of leaching kinetics and bioaccessibility in dry dog food.
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Affiliation(s)
- Bruno J. R. Gregório
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (B.J.R.G.); (S.R.F.); (A.A.A.)
| | - Ana Margarida Pereira
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (A.M.P.); (A.J.M.F.); (A.R.J.C.)
| | - Sara R. Fernandes
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (B.J.R.G.); (S.R.F.); (A.A.A.)
| | - Elisabete Matos
- SORGAL, Sociedade de Óleos e Rações S.A., Estrada Nacional 109, Lugar da Pardala, 3880-728 S. João Ovar, Portugal;
| | - Francisco Castanheira
- Alltechaditivos—Alimentação Animal Lda., Parque de Monserrate, Av. Dr. Luis Sá n 9 - Arm. A, 2710-089 Abrunheira, Portugal;
| | - Agostinho A. Almeida
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (B.J.R.G.); (S.R.F.); (A.A.A.)
| | - António J. M. Fonseca
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (A.M.P.); (A.J.M.F.); (A.R.J.C.)
| | - Ana Rita J. Cabrita
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (A.M.P.); (A.J.M.F.); (A.R.J.C.)
| | - Marcela A. Segundo
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n 228, 4050-313 Porto, Portugal; (B.J.R.G.); (S.R.F.); (A.A.A.)
- Correspondence: ; Tel.: +351-22042-8676
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6
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Marques TL, Nóbrega JA, Rocha FR. Flow-based solid sample preparation: Advantages, limitations, and challenges. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Determination and In Vitro Bioaccessibility Evaluation of Cu, Fe, Mn, and Zn in Chia (Salvia hispanica L.) Seeds by ICP OES. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01564-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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8
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Suh M, Casteel S, Dunsmore M, Ring C, Verwiel A, Proctor DM. Bioaccessibility and relative oral bioavailability of cobalt and nickel in residential soil and dust affected by metal grinding operations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 660:677-689. [PMID: 30641396 DOI: 10.1016/j.scitotenv.2018.12.317] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/21/2018] [Accepted: 12/21/2018] [Indexed: 06/09/2023]
Abstract
Including measures of relative bioavailability (RBA) improves the accuracy of site-specific risk assessment when evaluating metals bound in matrices that resist acid digestion (alloys, slag, tailings). In vitro gastrointestinal bioaccessibility and in vivo RBA assessments were conducted using baghouse dust, surface dust, and soil collected in a neighborhood near a metal forge, which emitted metals in the form of corrosion resistant alloys. The study objective was to characterize the in vitro bioaccessibility and relative bioavailability (RBA) of cobalt and nickel when ingested as freely soluble forms (ionic salts used as the basis for oral toxicity criteria), compared to when incidentally ingested in the forms found in the environment. Test materials and standard reference materials-cobalt chloride and nickel sulfate-were administered daily for 14 or 21 days, twice daily, to juvenile swine. Daily intake doses for cobalt were ≤229 μg/kg-day, and for nickel, ≤1419 μg/kg-day. Concentrations of cobalt and nickel were measured in various tissues; 24-hour urinary excretion of each metal was also measured. Multiple linear regression modeling was performed for tissue concentration or urinary excretion vs. dose in each material, with weighting as inverse variance in each dose group. Liver, urine, and kidney provided the optimal data. Although RBA values were affected by limited absolute bioavailability of cobalt and nickel in reference materials, trends across the different biological matrices consistently showed significantly reduced bioavailability of cobalt and nickel in soil and dust, with RBAs ranging from 0.2% to 12%. Bioaccessibility of cobalt and nickel in soil and dust were 1% to 5%, and similar results were found for baghouse dust. The data demonstrate that cobalt and nickel in soil and dust affected by alloys are resistant to bioelution and absorption. This study provides useful information for site-specific risk assessments and insights for planning future research.
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Affiliation(s)
- Mina Suh
- ToxStrategies, Inc., Mission Viejo, CA 92691, United States of America.
| | - Stan Casteel
- University of Missouri College of Veterinary Medicine, Columbia, MO 65211, United States of America
| | - Margaret Dunsmore
- University of Missouri College of Veterinary Medicine, Columbia, MO 65211, United States of America
| | - Caroline Ring
- ToxStrategies, Inc., Austin, TX 78759, United States of America
| | - Ann Verwiel
- ToxStrategies, Inc., San Rafael, CA 94901, United States of America
| | - Deborah M Proctor
- ToxStrategies, Inc., Mission Viejo, CA 92691, United States of America
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Rosende M, Prieto A, Etxebarria N, Martorell G, Miró M. Automatic Mesofluidic System Combining Dynamic Gastrointestinal Bioaccessibility with Lab-on-Valve-Based Sorptive Microextraction for Risk Exposure of Organic Emerging Contaminants in Filter-Feeding Organisms. Anal Chem 2019; 91:5739-5746. [DOI: 10.1021/acs.analchem.8b05870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María Rosende
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain
| | - Ailette Prieto
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Basque Country, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Basque Country, Spain
| | - Nestor Etxebarria
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Basque Country, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Basque Country, Spain
| | - Gabriel Martorell
- Serveis Cientificotècnics, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain
| | - Manuel Miró
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain
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Souza LA, Rosende M, Korn MGA, Miró M. Flow-through dynamic microextraction system for automatic in vitro assessment of chyme bioaccessibility in food commodities. Anal Chim Acta 2018; 1026:51-61. [DOI: 10.1016/j.aca.2018.04.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/15/2018] [Accepted: 04/27/2018] [Indexed: 11/30/2022]
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11
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Flexible liquid crystal polymer-based electrochemical sensor for in-situ detection of zinc(II) in seawater. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2280-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Maia MA, Soares TR, Mota AI, Rosende M, Magalhães LM, Miró M, Segundo MA. Dynamic flow-through approach to evaluate readily bioaccessible antioxidants in solid food samples. Talanta 2017; 166:162-168. [DOI: 10.1016/j.talanta.2017.01.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/07/2017] [Accepted: 01/12/2017] [Indexed: 12/31/2022]
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13
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Yu J, Yang S, Lu Q, Sun D, Zheng J, Zhang X, Wang X, Yang W. Evaluation of liquid cathode glow discharge-atomic emission spectrometry for determination of copper and lead in ores samples. Talanta 2017; 164:216-221. [DOI: 10.1016/j.talanta.2016.11.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/20/2016] [Accepted: 11/01/2016] [Indexed: 11/24/2022]
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14
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Mohr V, Miró M, Limbeck A. On-line dynamic extraction system hyphenated to inductively coupled plasma optical emission spectrometry for automatic determination of oral bioaccessible trace metal fractions in airborne particulate matter. Anal Bioanal Chem 2017; 409:2747-2756. [DOI: 10.1007/s00216-017-0219-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/14/2017] [Accepted: 01/19/2017] [Indexed: 11/28/2022]
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15
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Herrera MA, Rosende M, Arruda MAZ, Miró M. On-line coupling of physiologically relevant bioaccessibility testing to inductively coupled plasma spectrometry: Proof of concept for fast assessment of gastrointestinal bioaccessibility of micronutrients from soybeans. Anal Chim Acta 2016; 939:1-9. [PMID: 27639139 DOI: 10.1016/j.aca.2016.07.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/07/2016] [Accepted: 07/21/2016] [Indexed: 01/24/2023]
Abstract
In-vitro physiologically relevant gastrointestinal extraction based on the validated Unified BARGE Method (UBM) is in this work hyphenated to inductively coupled plasma optical emission spectrometry in a batch-flow configuration for real-time monitoring of oral bioaccessibility assays with high temporal resolution. A fully automated flow analyzer is designed to foster in-line filtration of gastrointestinal extracts at predefined times (≤15 min) followed by on-line multi-elemental analysis of bioaccessible micro-nutrients, viz., Cu, Fe and Mn, in well-defined volumes of extracts (300 μL) of transgenic and non-transgenic soybean seeds taken as model samples. The hyphenated flow setup allows for recording of temporal extraction profiles to gain full knowledge of the kinetics of the gastrointestinal digestion processes, including element leaching and concomitant precipitation and complexation reactions hindering bioavailability. Simplification of the overall standard procedure is also feasible by identification of steady-state extraction conditions. Our findings indicate that reliable measurement of oral bioaccessible pools of Cu, Fe and Mn in soybean might be obtained in less than 180 min rather than 240 min as endorsed by UBM. Using a matrix-matched external calibration, limits of detection according to the 3s criteria were 0.5 μg/g for Mn, 0.6 μg/g for Cu and 2.3 μg/g for Fe. Trueness of the automatic bioaccessibility method was confirmed by mass balance validation with recoveries ranging from 87 to 116% regardless of the target element and sample. Cu was the micronutrient with the highest oral bioaccessibility ranging from 73% to 83% (7.5-7.9 μg/g) for non-transgenic and transgenic soybeans, respectively, followed by Mn and Fe within the ranges of 29-31% (10.8-11.4 μg/g) and 11-15% (8-14 μg/g), respectively, regardless of transgenesis. The proposed kinetic method is proven suitable for fast and expedient estimation of the nutritional value of soybeans and elucidation of the potential effect of transgenesis onto bioaccessible fractions of elements.
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Affiliation(s)
- Mónica Alejandra Herrera
- GEPAM Group, Institute of Chemistry, University of Campinas-UNICAMP, P.O. Box 6154, 13083-970, Campinas, Sao Paulo, Brazil
| | - María Rosende
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa km 7.5, 07122 Palma de Mallorca, Illes Balears, Spain
| | - Marco Aurélio Zezzi Arruda
- GEPAM Group, Institute of Chemistry, University of Campinas-UNICAMP, P.O. Box 6154, 13083-970, Campinas, Sao Paulo, Brazil
| | - Manuel Miró
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa km 7.5, 07122 Palma de Mallorca, Illes Balears, Spain.
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16
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Thongsaw A, Chaiyasith WC, Sananmuang R, Ross GM, Ampiah-Bonney RJ. Determination of cadmium in herbs by SFODME with ETAAS detection. Food Chem 2016; 219:453-458. [PMID: 27765251 DOI: 10.1016/j.foodchem.2016.09.177] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 08/28/2016] [Accepted: 09/28/2016] [Indexed: 11/29/2022]
Abstract
A method for the determination of cadmium in herb samples based on solidified floating organic drop microextraction (SFODME) using 1-(2-Pyridylazo)-2-naphthol (PAN) as a chelating reagent and detection by electrothermal atomic absorption spectrometry (ETAAS) was developed in the present work. The effects of pH, extraction solvent, extraction time, stirring rate, and extraction temperature were investigated. Under the optimized conditions, the calibration graph was linear in the range of 0.017-3.0μgL-1, with a detection limit (LOD) of 0.0052μgL-1. The relative standard deviation (%RSD) for 6 replicate measurements of 1.0μgL-1 cadmium was ±2.67%. The method was applied to the analysis of 10 types of Thai herb samples. Percentage recoveries were in the range 94.5-110.2%. It was found that cadmium concentrations in all Thai herb samples were less than the maximum residue level.
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Affiliation(s)
- Arnon Thongsaw
- Department of Chemistry, Research Center for Academic Excellence in Petroleum, Petrochemical and Advanced Materials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Wipharat Chuachuad Chaiyasith
- Department of Chemistry, Research Center for Academic Excellence in Petroleum, Petrochemical and Advanced Materials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand.
| | - Ratana Sananmuang
- Department of Chemistry, Research Center for Academic Excellence in Petroleum, Petrochemical and Advanced Materials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Gareth M Ross
- Department of Chemistry, Research Center for Academic Excellence in Petroleum, Petrochemical and Advanced Materials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
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17
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Cave MR, Rosende M, Mounteney I, Gardner A, Miró M. New Insights into the Reliability of Automatic Dynamic Methods for Oral Bioaccessibility Testing: A Case Study for BGS102 soil. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9479-9486. [PMID: 27484882 DOI: 10.1021/acs.est.6b02387] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Dynamic flow-through extraction is attracting a great deal of attention for real-time monitoring of the bioaccessible fraction of metal species in environmental solid substrates compared to its batchwise manual counterparts. There is however a lack of studies on the harmonization and validation of in vitro dynamic methods for physiologically based extraction tests against in vivo bioavailability methods. This work is aimed at evaluating the reliability of dynamic flow-through extraction methods for estimation of oral bioaccessible fractions of Cu, Zn, Pb, Ni, Cr, and As under worst-case extraction conditions in the gastric compartment based on the BGS102 guidance soil using the in vivo validated Unified BARGE (UBM) test, commonly performed under batchwise mode. Good overall agreement between batch and dynamic UBM results was obtained for the tested elements, except for Pb, as a consequence of the slow leaching kinetics identified with the dynamic method and the contribution of readsorption phenomena in the course of the gastric digestion. Metal-soil phase associations and their relationship with gastric bioaccessible fractions were elucidated using the so-called Chemometric Identification of Substrates and Element Distributions method based on sequential extraction with a variety of chemicals of increasing acidity as applied to both static and dynamic bioaccessibility data.
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Affiliation(s)
- Mark R Cave
- British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom
| | - María Rosende
- FI-TRACE group, Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, 07122 Palma de Mallorca, Illes Balears, Spain
| | - Ian Mounteney
- British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom
| | - Amanda Gardner
- British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom
| | - Manuel Miró
- FI-TRACE group, Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, 07122 Palma de Mallorca, Illes Balears, Spain
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18
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Matong JM, Nyaba L, Nomngongo PN. Fractionation of trace elements in agricultural soils using ultrasound assisted sequential extraction prior to inductively coupled plasma mass spectrometric determination. CHEMOSPHERE 2016; 154:249-257. [PMID: 27058917 DOI: 10.1016/j.chemosphere.2016.03.123] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/17/2016] [Accepted: 03/25/2016] [Indexed: 06/05/2023]
Abstract
The main objectives of this study were to determine the concentration of fourteen trace elements and to investigate their distribution as well as a contamination levels in selected agricultural soils. An ultrasonic assisted sequential extraction procedure derived from three-step BCR method was used for fractionation of trace elements. The total concentration of trace elements in soil samples was obtained by total digestion method in soil samples with aqua regia. The results of the extractable fractions revealed that most of the target trace elements can be transferred to the human being through the food chain, thus leading to serious human health. Enrichment factor (EF), geo-accumulation index (Igeo), contamination factor (CF), risk assessment code (RAC) and individual contamination factors (ICF) were used to assess the environmental impacts of trace metals in soil samples. The EF revealed that Cd was enriched by 3.1-7.2 (except in Soil 1). The Igeo results showed that the soils in the study area was moderately contaminated with Fe, and heavily to extremely polluted with Cd. The soil samples from the unplanted field was found to have highest contamination factor for Cd and lowest for Pb. Soil 3 showed a high risk for Tl and Cd with RAC values of greater than or equal to 50%. In addition, Fe, Ni, Cu, V, As, Mo (except Soil 2), Sb and Pb posed low environmental risk. The modified BCR sequential extraction method provided more information about mobility and environmental implication of studied trace elements in the study area.
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Affiliation(s)
- Joseph M Matong
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa
| | - Luthando Nyaba
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa
| | - Philiswa N Nomngongo
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa.
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19
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Mori M, Nakano K, Sasaki M, Shinozaki H, Suzuki S, Okawara C, Miró M, Itabashi H. Dynamic leaching and fractionation of trace elements from environmental solids exploiting a novel circulating-flow platform. Talanta 2016; 148:617-25. [PMID: 26653492 DOI: 10.1016/j.talanta.2015.06.081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/23/2015] [Accepted: 06/26/2015] [Indexed: 10/23/2022]
Abstract
A dynamic flow-through microcolumn extraction system based on extractant re-circulation is herein proposed as a novel analytical approach for simplification of bioaccessibility tests of trace elements in sediments. On-line metal leaching is undertaken in the format of all injection (AI) analysis, which is a sequel of flow injection analysis, but involving extraction under steady-state conditions. The minimum circulation times and flow rates required to determine the maximum bioaccessible pools of target metals (viz., Cu, Zn, Cd, and Pb) from lake and river sediment samples were estimated using Tessier's sequential extraction scheme and an acid single extraction test. The on-line AIA method was successfully validated by mass balance studies of CRM and real sediment samples. Tessier's test in on-line AI format demonstrated to be carried out by one third of extraction time (6h against more than 17 h by the conventional method), with better analytical precision (<9.2% against >15% by the conventional method) and significant decrease in blank readouts as compared with the manual batch counterpart.
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Affiliation(s)
- Masanobu Mori
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan.
| | - Koji Nakano
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan
| | - Masaya Sasaki
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan
| | - Haruka Shinozaki
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan
| | - Shiho Suzuki
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan
| | - Chitose Okawara
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan
| | - Manuel Miró
- FI-TRACE group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Illes Balears, Spain
| | - Hideyuki Itabashi
- Department of Environmental Engineering Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu Gunma 376-8515, Japan
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YUAN X, DUAN YX. Determination of Metallic Elements in Environmental Samples by Matrix-Assisted Microwave Induced Plasma Surface Sampling Atomic Emission Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60857-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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