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Bień D, Michalczuk M, Łysek-Gładysińska M, Jóźwik A, Wieczorek A, Matuszewski A, Kinsner M, Konieczka P. Nano-Sized Selenium Maintains Performance and Improves Health Status and Antioxidant Potential While Not Compromising Ultrastructure of Breast Muscle and Liver in Chickens. Antioxidants (Basel) 2023; 12:antiox12040905. [PMID: 37107280 PMCID: PMC10135471 DOI: 10.3390/antiox12040905] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/22/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
The poultry industry is looking for the most effective sources of selenium (Se) for commercial use. Over the past five years, nano-Se has attracted a great deal of attention in terms of its production, characterisation and possible application in poultry production. The objective of this study was to evaluate the effects of dietary levels of inorganic and organic Se, selenised yeast and nano forms of selenium on breast meat quality, liver and blood markers of antioxidants, the ultrastructure of tissue and the health status of chickens. A total of 300 one-day-old chicks Ross 308 were divided into 4 experimental groups, in 5 replications, with 15 birds per replication. Birds were fed the following treatments: a standard commercial diet containing inorganic Se in the form of inorganic Se at the level of 0.3 mg/kg diet and an experimental diet with an increased level of Se (0.5 mg/kg diet). The use of other forms of Se (nano-Se) versus sodium selenate significantly influences (p ≤ 0.05) a higher collagen content and does not impair physico-chemical properties in the breast muscle or the growth performance of the chickens. In addition, the use of other forms of selenium at an increased dose versus sodium selenate affected (p ≤ 0.01) the elongation of sarcomeres in the pectoral muscle while reducing (p ≤ 0.01) mitochondrial damage in hepatocytes and improving (p ≤ 0.05) oxidative indices. The use of nano-Se at a dose of 0.5 mg/kg feed has high bioavailability and low toxicity without negatively affecting the growth performance and while improving breast muscle quality parameters and the health status of the chickens.
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Affiliation(s)
- Damian Bień
- Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences WULS-SGGW, 02-786 Warszawa, Poland
| | - Monika Michalczuk
- Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences WULS-SGGW, 02-786 Warszawa, Poland
| | - Małgorzata Łysek-Gładysińska
- Division of Medical Biology, Institute of Biology, University of Jan Kochanowski, Uniwersytecka 7, 25-406 Kielce, Poland
- Institute of Genetics and Animal Breeding PAS, Jastrzębiec, Postępu 36A, 05-552 Magdalenka, Poland
| | - Artur Jóźwik
- Institute of Genetics and Animal Breeding PAS, Jastrzębiec, Postępu 36A, 05-552 Magdalenka, Poland
| | - Anna Wieczorek
- Division of Medical Biology, Institute of Biology, University of Jan Kochanowski, Uniwersytecka 7, 25-406 Kielce, Poland
| | - Arkadiusz Matuszewski
- Department of Animal Environment Biology, Institute of Animal Sciences, Warsaw University of Life Sciences WULS-SGGW, 02-786 Warszawa, Poland
| | - Misza Kinsner
- Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
| | - Paweł Konieczka
- Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
- Department of Poultry Science and Apiculture, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
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Ferraz AH, Costa LP, Mirlean N, Seus-Arrache ER, Adebayo S. Selenium Content in Freshwater and Marine Fish from Southern Brazil Coastal Plain: a Comparative Analysis on Environmental and Dietary Aspects. Biol Trace Elem Res 2023; 201:946-958. [PMID: 35445937 DOI: 10.1007/s12011-022-03192-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/03/2022] [Indexed: 01/21/2023]
Abstract
The coastal plain of Rio Grande do Sul is considered to be a Se-deficient region in terms of its population dietary habit, making it the focus of this study. Selenium dietary deficiency is a concern when we consider its potential critical health effects on the local population. Therefore, this study contributes new information on the levels of Se in several species of marine and freshwater fish in the region of the Patos-Mirim Lagoon system, coupled with a comparative analysis of the metalloid contents between both fish groups. The Se contents in the fish species ranged from 88 ± 13 to 688 ± 19 μg.kg-1. The average Se concentration in the muscle tissue of the freshwater species (251 ± 96 μg kg-1) was significantly lower than that of the marine species (412 ± 143 μg kg-1). Likewise, no evidence of Se biomagnification was found among the fish from both the marine and freshwater environments, suggesting the absence of trophic transfer of Se. We note that to ensure that the RDA (Recommended Daily Allowance, 55 μg day-1) of Se dietary intake for adults is met, at least 134 g of freshwater or 82 g of marine fish fillet could be incorporated into the diet of the population of Rio Grande do Sul. According to target hazard quotients (THQ) and the permissible safety limits, consumption of the fish species analyzed is safe for human health.
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Affiliation(s)
- Alexandre Henrique Ferraz
- Federal University of Rio Grande, Oceanography Institute, Av. Itália km 08 Campus Carreiros, RS, 96201-900, Rio Grande, Brazil.
| | - Larissa Pinheiro Costa
- Federal University of Rio Grande, Oceanography Institute, Av. Itália km 08 Campus Carreiros, RS, 96201-900, Rio Grande, Brazil
| | - Nicolai Mirlean
- Federal University of Rio Grande, Oceanography Institute, Av. Itália km 08 Campus Carreiros, RS, 96201-900, Rio Grande, Brazil
| | - Elisa Rosa Seus-Arrache
- Federal University of Rio Grande, Oceanography Institute, Av. Itália km 08 Campus Carreiros, RS, 96201-900, Rio Grande, Brazil
| | - Segun Adebayo
- Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA, 70118, USA
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Turck D, Bohn T, Castenmiller J, de Henauw S, Hirsch‐Ernst K, Knutsen HK, Maciuk A, Mangelsdorf I, McArdle HJ, Peláez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Aggett P, Crous Bou M, Cubadda F, Ciccolallo L, de Sesmaisons Lecarré A, Fabiani L, Titz A, Naska A. Scientific opinion on the tolerable upper intake level for selenium. EFSA J 2023; 21:e07704. [PMID: 36698500 PMCID: PMC9854220 DOI: 10.2903/j.efsa.2023.7704] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver a scientific opinion on the tolerable upper intake level (UL) for selenium. Systematic reviews of the literature were conducted to identify evidence regarding excess selenium intake and clinical effects and potential biomarkers of effect, risk of chronic diseases and impaired neuropsychological development in humans. Alopecia, as an early observable feature and a well-established adverse effect of excess selenium exposure, is selected as the critical endpoint on which to base a UL for selenium. A lowest-observed-adverse-effect-level (LOAEL) of 330 μg/day is identified from a large randomised controlled trial in humans (the Selenium and Vitamin E Cancer Prevention Trial (SELECT)), to which an uncertainty factor of 1.3 is applied. A UL of 255 μg/day is established for adult men and women (including pregnant and lactating women). ULs for children are derived from the UL for adults using allometric scaling (body weight0.75). Based on available intake data, adult consumers are unlikely to exceed the UL, except for regular users of food supplements containing high daily doses of selenium or regular consumers of Brazil nuts. No risk has been reported with the current levels of selenium intake in European countries from food (excluding food supplements) in toddlers and children, and selenium intake arising from the natural content of foods does not raise reasons for concern. Selenium-containing supplements in toddlers and children should be used with caution, based on individual needs.
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Takata N, Myburgh J, Botha A, Nomngongo PN. The importance and status of the micronutrient selenium in South Africa: a review. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:3703-3723. [PMID: 34708333 DOI: 10.1007/s10653-021-01126-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Selenium (Se) is a vital micronutrient with widespread biological action but leads to toxicity when taken in excessive amounts. The biological benefits of Se are mainly derived from its presence in active sites of selenoproteins such as glutathione peroxidase (GPx). An enzyme whose role is to protect tissues against oxidative stress by catalysing the reduction of peroxidase responsible for various forms of cellular damage. The benefits of Se can be harvested when proper regulations of its intake are used. In South Africa, Se distribution in people's diets and animals are low with socio-economic factors and heterogeneous spread of Se in soil throughout the country playing a significant role. The possible causes of low Se in soils may be influenced by underlying geological material, climatic conditions, and anthropogenic activities. Sedimentary rock formations show higher Se concentrations compared to igneous and metamorphic rock formations. Higher Se concentrations in soils dominates in humid and sub-humid areas of South Africa. Furthermore, atmospheric acid deposition dramatically influences the availability of Se to plants. The studies reviewed in this article have shown that atomic absorption spectroscopy (AAS) is the most utilised analytical technique for total Se concentration determination in environmental samples and there is a lack of speciation data for Se concentrations. Shortcomings in Se studies have been identified, and the future research directions of Se in South Africa have been discussed.
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Affiliation(s)
- Nwabisa Takata
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein, 2028, South Africa
- National Metrology Institute of South Africa, CSIR Campus, Building 5, Meiring Naude Road, Brummeria, Pretoria, 0182, South Africa
| | - Jan Myburgh
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110, South Africa
| | - Angelique Botha
- National Metrology Institute of South Africa, CSIR Campus, Building 5, Meiring Naude Road, Brummeria, Pretoria, 0182, South Africa
| | - Philiswa Nosizo Nomngongo
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein, 2028, South Africa.
- Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein, 2028, South Africa.
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Liao G, Luo J, Cui T, Zou J, Xu M, Ma Y, Shi L, Jia J, Ma C, Li H, Xu F. Microwave-assisted one-pot synthesis of carbon dots for highly sensitive and selective detection of selenite. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182212135. [PMID: 34831893 PMCID: PMC8623758 DOI: 10.3390/ijerph182212135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 02/07/2023]
Abstract
Speciation analysis is a key aspect of modern analytical chemistry, as the toxicity, environmental mobility, and bioavailability of elemental analytes are known to depend strongly on an element’s chemical species. Henceforth, great efforts have been made in recent years to develop methods that allow not only the determination of elements as a whole, but also each of its separate species. Environmental analytical chemistry has not ignored this trend, and this review aims to summarize the latest methods and techniques developed with this purpose. From the perspective of each relevant element and highlighting the importance of their speciation analysis, different sample treatment methods are introduced and described, with the spotlight on the use of modern nanomaterials and novel solvents in solid phase and liquid-liquid microextractions. In addition, an in-depth discussion of instrumental techniques aimed both at the separation and quantification of metal and metalloid species is presented, ranging from chromatographic separations to electro-chemical speciation analysis. Special emphasis is made throughout this work on the greenness of these developments, considering their alignment with the precepts of the Green Chemistry concept and critically reviewing their environmental impact.
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Filip J, Vinter Š, Čechová E, Sotolářová J. Materials interacting with inorganic selenium from the perspective of electrochemical sensing. Analyst 2021; 146:6394-6415. [PMID: 34596173 DOI: 10.1039/d1an00677k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Inorganic selenium, the most common form of harmful selenium in the environment, can be determined using electrochemical sensors, which are compact, fast, reliable and easy-to-operate devices. Despite progress in this area, there is still significant room for developing high-performance selenium electrochemical sensors. To achieve this, one should take into account (i) the electrochemical process that selenium undergoes on the electrode; (ii) the valence state of selenium species in the sample and (iii) modification of the sensor surface by a material with high affinity to selenium. The goal of this review is to provide a knowledge base for these issues. After the Introduction section, mechanisms and principles of the electrochemical reduction of selenium are introduced, followed by a section introducing the modification of electrodes with materials interacting with selenium and a section dedicated to speciation methods, including the reduction of non-detectable Se(VI) to detectable Se(IV). In the following sections, the main types of materials (metallic, polymers, hybrid (nano)materials…) interacting with inorganic selenium (mostly absorbents) are reviewed to show the diversity of properties that may be endowed to sensors if the materials were to be used for the modification of electrodes. These features for the main material categories are outlined in the conclusion section, where it is stated that the engineered polymers may be the most promising modifiers.
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Affiliation(s)
- Jaroslav Filip
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Štěpán Vinter
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Erika Čechová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Jitka Sotolářová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
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Analytical Problems in Separation of Selenomethionine and Its Oxidative Product in HILIC HPLC. Molecules 2021; 26:molecules26165073. [PMID: 34443660 PMCID: PMC8398165 DOI: 10.3390/molecules26165073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/04/2021] [Accepted: 08/18/2021] [Indexed: 11/27/2022] Open
Abstract
Selenomethionine (SeMet) is one of the main selenium forms in foods and supplements. Determining its presence in natural food samples creates difficulties due to possible oxidation processes. The objective of this study was to evaluate the possible degradation of SeMet in water extracts of green teas, one of the most consumed beverages worldwide. Such a medium has not been investigated at this time. The HILIC-HPLC MS/MS method with different stationary phases was used to achieve the satisfactory separation of SeMet and selenomethionine oxide (SeMetO). The addition of dithiothreitol and β-mercaptoethanol, recommended to ensure that SeMet is kept in the reduced form, was also evaluated. The best separation was achieved using the zwitterionic HILIC stationary phase coupled to mass spectrometry and MeOH with water (85/15, v/v) as the eluent. Extraction was done with hot water with the addition of β-mercaptoethanol. The infusions prepared from Lung-Ching teas (from the Zhejiang Province in China) contained the highest concentration of selenium in a typical cup of tea (12.5–17.3 µg L−1). For other tested teas it decreased in the following order: Yunnan > Dilmah > Lipton. For Lung-Ching teas, the sum of concentrations of SeMet and SeMetO corresponded to about 46–63% of the total selenium in their extracts.
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9
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LeBlanc KL, Mester Z. Compilation of selenium metabolite data in selenized yeasts. Metallomics 2021; 13:6307519. [PMID: 34156080 DOI: 10.1093/mtomcs/mfab031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/30/2021] [Indexed: 11/12/2022]
Abstract
Selenium-enriched yeast has long been recognized as an important nutritional source of selenium and studies have suggested that supplementation with this material provides chemo-preventative benefits beyond those observed for selenomethionine supplementation, despite the fact that selenomethionine accounts for 60-84% of the total selenium in selenized yeasts. There is much ongoing research into the characterization of the species comprising the remaining 16-40% of the selenium, with nearly 100 unique selenium-containing metabolites identified in aqueous extracts of selenized yeasts (Saccharomyces cerevisiae). Herein, we discuss the analytical approaches involved in the identification and quantification of these metabolites, and present a recently created online database (DOI: 10.4224/40001921) of reported selenium species along with chemical structures and unique mass spectral features.
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Affiliation(s)
- Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Zoltán Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
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Ekumah JN, Ma Y, Akpabli-Tsigbe NDK, Kwaw E, Ma S, Hu J. Global soil distribution, dietary access routes, bioconversion mechanisms and the human health significance of selenium: A review. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.100960] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Speciation and Determination of Selenium Oxyanions at the Drinking Water Pollution Concentration Levels. SEPARATIONS 2021. [DOI: 10.3390/separations8030027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The research on selenium presence in water resources has revealed the need to determine the respective aquatic species. As selenium oxyanions SeO32− (SeIV) and SeO42− (SeVI) predominate in natural waters, their determination is essential, mainly due to different ecotoxicity properties, as well as to different removal options from relevant-polluted waters. This study focuses on the SeO32−/SeO42− speciation/separation and determination through the selective adsorption of SeO32− only onto specific iron oxy-hydroxides (FeOOHs). For this purpose, the laboratory prepared FeOOHs examined along with the commercially available relevant material (Bayoxide), which was found to present optimum results for the speciation of selenium oxyanions, at the low concentration range 10–100 μg/L, using a dose of 0.5 g/L of adsorbent and gently stirring for 30 min at the usually encountered pH value of 7.3 ± 0.2. Moreover, the relevant experiments showed that the other major ions Cl−, HCO3−, NO3−, SO42−, Ca2+, Mg2+, Na+, possibly found in most natural waters at the concentration range 0–200 mg/L, as well as silicon, total organic carbon (TOC) of natural organic matter (NOM) and iron at the concentration range 0–50 mg/L, 0–5 mg/L and 0–1 mg/L, respectively, did not interfere with the selective adsorption of Se(IV). Furthermore, the most important advantage of this selective speciation method is its implementation/combination with all commonly applied analytical methods for the determination of total selenium.
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Bordash MG, Pagliano E, LeBlanc KL, Kumkrong P, Wallschläger D, Mester Z. Determination of selenocyanate, selenate, and selenite in mining wastewater by GC-MS using sequential derivatization and extraction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 745:140877. [PMID: 32726700 DOI: 10.1016/j.scitotenv.2020.140877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/24/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Selenium speciation analysis is usually carried out using complex hyphenated analytical systems such as LC-ICP-MS. Here we present a novel selenium speciation approach based on a sequential derivatization and extraction combined with gas chromatography mass spectrometry for the simultaneous determination of selenite, selenate, and selenocyanate in aqueous mine wastewater samples. Selenocyanate was derivatized with triethyloxonium tetrafluoroborate to ethylselenocyanate, which was extracted into chloroform, following which the sample was split into two aliquots. One aliquot was acidified and 3,5-bis(trifluoromethyl)-o-phenylenediamine was used for the novel derivatization of selenite to 4,6-bis(trifluoromethyl)-2,1,3-benzoselenadiazole, for the determination of selenite. For the second aliquot, concentrated hydrochloric acid was added along with 4-nitro-o-phenylenediamine to simultaneously reduce selenate to selenite and derivatize the combined "selenite + selenate" fraction to 5-nitro-2,1,3-benzoselenadiazole. The benzoselenadiazoles were extracted with chloroform and all extracts were combined for GC-MS analysis. Low ng g-1 detection limits were reported for all three species. The method is unhindered by concentrations of chloride and sulphate up to 3%, as well as nitrate concentrations up to 3% for selenocyanate and selenite analysis, with minor losses in sensitivity for selenate up to 100 ppm nitrate, making the method particularly suitable for aqueous mine waste characterization. Quantitative trace selenium speciation was achieved using cost-effective materials and apparatus on a simple-to-operate benchtop instrument. The novel methodology was tested on gold mine wastewater samples; comparing to total selenium, a 63-149% recovery as the sum of species was observed. Additionally, this novel speciation approach was compared to LC-ICP-MS based selenium speciation and a reasonable agreement was found in the species distribution.
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Affiliation(s)
- Mitchell G Bordash
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada; Master of Instrumental Chemical Analysis Graduate Program, Trent University, Peterborough, Ontario, Canada
| | - Enea Pagliano
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada.
| | - Paramee Kumkrong
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Dirk Wallschläger
- Water Quality Centre, School of the Environment, Department of Chemistry, Trent University, Peterborough, Ontario, Canada
| | - Zoltán Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
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Mostafavi B, Feizbakhsh A, Konoz E, Faraji H. Salting-out strategy for speciation of selenium in aqueous samples using centrifuge-less dispersive liquid-liquid microextraction. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:662. [PMID: 32979107 DOI: 10.1007/s10661-020-08609-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
The centrifuge-less dispersive liquid-liquid microextraction (DLLME) technique was used to separate selenium species in aqueous samples. According to the salting-out effect, a simple approach was used to eliminate the centrifugation step. The optimization of the independent variables was performed using chemometric methods. Under optimal conditions, this methodology was statistically validated. The linearity was between 20 and 300 μg L-1. The limit of detection and quantification were calculated 3.4 μg L-1 and 10.4 μg L-1, respectively. The values of reproducibility and repeatability were determined ≤ 9.5% and ≤ 6.4, respectively. The possibility of the method was successfully assessed by analyzing the analytes in real samples clarified satisfactory recoveries (98.1-101.4% for Se (IV) and 98.4-101.5% for Se (VI)).
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Affiliation(s)
- Beeta Mostafavi
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Niyayesh building, Imam Hassan Blv., Ashrafi-e-Esfehani Ave, Tehran, 86831-14676, Iran
| | - Alireza Feizbakhsh
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Niyayesh building, Imam Hassan Blv., Ashrafi-e-Esfehani Ave, Tehran, 86831-14676, Iran.
| | - Elaheh Konoz
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Niyayesh building, Imam Hassan Blv., Ashrafi-e-Esfehani Ave, Tehran, 86831-14676, Iran
| | - Hakim Faraji
- Department of Chemistry, Varamin-Pishva Branch, Islamic Azad University, Naghsh-e-Jahan Sq., 338177489, Pishva, Varamin, Iran.
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Pyrzynska K, Sentkowska A. Selenium in plant foods: speciation analysis, bioavailability, and factors affecting composition. Crit Rev Food Sci Nutr 2020; 61:1340-1352. [PMID: 32363893 DOI: 10.1080/10408398.2020.1758027] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Interest in selenium has been increasing over the past few decades with growing knowledge of its importance to overall health. The ability of several plants to accumulate and transform inorganic selenium forms into its bioactive organic compounds has important implications for human nutrition and health. In this review, we present the studies carried out during the last decade to characterize selenium species produced by different plant foods. Attention is also paid to the effect of selenium treatment on chemical composition and antioxidant properties of plants.
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15
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Pyrzynska K. Nanomaterials in speciation analysis of metals and metalloids. Talanta 2020; 212:120784. [PMID: 32113547 DOI: 10.1016/j.talanta.2020.120784] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/22/2020] [Accepted: 01/25/2020] [Indexed: 02/07/2023]
Abstract
Nanomaterials have draw extensive attention from the scientists in recent years mainly due to their unique and attractive thermal, mechanical and electronic properties, as well as high surface to volume ratio and the possibility for surface functionalization. Whereas mono functional nanomaterials providing a single function, the preparation of core/shell nanoparticles allows different properties to be combined in one material. Their properties have been extensively exploited in different extraction techniques to improve the efficiency of separation and preconcentration, analytical selectivity and method reliability. The aim of this paper is to provide an updated revision of the most important features and application of nanomaterials (metallic, silica, polymeric and carbon-based) for solid phase extraction and microextraction techniques in speciation analysis of some metals and metalloids (As, Cr, Sb, Se). Emphasis will be placed on the presentation of the most representative works published in the last five years (2015-2019).
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Affiliation(s)
- Krystyna Pyrzynska
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-93, Warsaw, Poland.
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Etteieb S, Magdouli S, Zolfaghari M, Brar S. Monitoring and analysis of selenium as an emerging contaminant in mining industry: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134339. [PMID: 31783461 DOI: 10.1016/j.scitotenv.2019.134339] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 05/07/2023]
Abstract
Selenium is an indispensable trace element for humans, however, its release at high concentrations becomes a major concern for terrestrial and aquatic ecosystems due to its bioaccumulation potential. Mining and metal-mineral processing are among the main sources of selenium released into the environment. Excessive levels of selenium may induce toxicity in human as selenosis, in grazing animals as alkali disease and in aquatic organisms as larval and developmental deformities and mortality. Due to the introduction of new policies for Se monitoring in the mining industry mainly setting the guidelines for selenium level in freshwaters as recommended by the Canadian Council of Ministers of Environment and Environment and climate change Canada, an improved understanding of Se occurrence, mobility, bioavailability and treatment technologies for efficient removal is timely and required. In this context, this review updated the understanding of mining-related selenium occurrence in surface water, soil and plant, with a focus on its mobility and bioavailability. Selenium uptake, translocation, accumulation, and metabolism in plants are further presented. Selenium monitoring and treatment is the key to adopt the corrective measures to mitigate highly contaminated effluent and to minimize the associated adverse health effects. Future research directions and recommendations for selenium analysis and treatment processes are also discussed.
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Affiliation(s)
- Selma Etteieb
- Centre technologique des résidus industriels en Abitibi Témiscamingue, 433 boulevard du collège, J9X0E1, Canada; Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec G1K 9A9, Qc, Canada
| | - Sara Magdouli
- Centre technologique des résidus industriels en Abitibi Témiscamingue, 433 boulevard du collège, J9X0E1, Canada.
| | - Mehdi Zolfaghari
- Centre technologique des résidus industriels en Abitibi Témiscamingue, 433 boulevard du collège, J9X0E1, Canada
| | - SatinderKaur Brar
- Institut national de la recherche scientifique (Centre Eau, Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec G1K 9A9, Qc, Canada; Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto M3J 1P3, Ontario, Canada
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Liu S, Salhi E, Huang W, Diao K, von Gunten U. Kinetic and mechanistic aspects of selenite oxidation by chlorine, bromine, monochloramine, ozone, permanganate, and hydrogen peroxide. WATER RESEARCH 2019; 164:114876. [PMID: 31400591 DOI: 10.1016/j.watres.2019.114876] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/09/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
Selenium (mainly in the forms of selenite (Se(IV)) and selenate (Se(VI)) is a regulated drinking water contaminant, but there is little information on the kinetics and mechanisms of Se(IV) oxidation during water treatment. Species-specific and apparent second-order rate constants for the oxidation of Se(IV) at pH 7.0 were determined in buffered solutions and they decrease in the order bromine (5.8 ± 0.3 × 103 M-1 s-1) > ozone (O3, 513.4 ± 10.0 M-1 s-1) > chlorine (61.0 ± 3.6 M-1 s-1) > permanganate (2.1 ± 0.1 M-1 s-1), monochloramine (NH2Cl, (1.3 ± 0.1) × 10-3 M-1 s-1), and hydrogen peroxide (H2O2, (2.3 ± 0.1) × 10-5 M-1 s-1). The reaction stoichiometries for the reactions of Se(IV) with bromine, O3, chlorine, NH2Cl, and H2O2 are 1:1. For Mn(VII), the stoichiometries varied with pH and were 5:2, 3:2, and 1:2 for acidic, neutral, and alkaline conditions, respectively. Based on the reaction orders and stoichiometries, the corresponding Se(IV) oxidation mechanisms for various oxidants are discussed. The role of bromide for Se(IV) oxidation was also investigated during chlorination and ozonation of Se(IV)-containing water. During chlorination, bromide-catalysis enhances the rate of the oxidation of Se(IV) to Se(VI) from 50% to nearly 90% with bromide concentrations of 50 μg L-1 and 200 μg L-1, respectively, at pH 7.0 and a chlorine dose of 2.0 mg L-1 (within 15 min). During ozonation, bromide had no effect on Se(IV) oxidation. Based on the determined second order rate constants, the oxidation of Se(IV) by chlorine and ozone were successfully predicted in a natural water by a kinetic model. The second order rate constants for the same oxidants were also investigated and/or evaluated for other related anions, such as arsenite (As(III)) and sulfite (S(IV)). They decreased in the order S(IV) > As(III) > Se(IV).
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Affiliation(s)
- Shaogang Liu
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600, Dübendorf, Switzerland; Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, 530008, Guangxi, China; Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Beijing, 100085, China
| | - Elisabeth Salhi
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600, Dübendorf, Switzerland
| | - Wanting Huang
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, 530008, Guangxi, China
| | - Kaisheng Diao
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, 530008, Guangxi, China
| | - Urs von Gunten
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600, Dübendorf, Switzerland; School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Lausanne (EPFL), 1015, Lausanne, Switzerland.
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Kalaitzidou K, Nikoletopoulos AA, Tsiftsakis N, Pinakidou F, Mitrakas M. Adsorption of Se(IV) and Se(VI) species by iron oxy-hydroxides: Effect of positive surface charge density. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 687:1197-1206. [PMID: 31412455 DOI: 10.1016/j.scitotenv.2019.06.174] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/20/2019] [Accepted: 06/11/2019] [Indexed: 05/26/2023]
Abstract
Batch and continuous mode experiments were used to determine the influence of physic-chemicals characteristics of iron oxy-hydroxides (FeOOHs) on selenium adsorption. Batch experiments and continuous flow rapid small-scale column tests (RSSCTs) at pH 7 and NSF (National Sanitation Foundation) water matrix, showed that the adsorption capacity of FeOOHs for Se(IV) is strongly related to positive surface charge density (PSCD), and gradually increases when synthesis pH is lowered. The highest PSCD value of 3.25 mmol [OH-]/g was observed at synthesis pH 2.5 (FeOOH/2.5) and the lowest, 0.45 mmol [OH-]/g, was observed at synthesis pH 9 (FeOOH/9). A thermodynamic study verified the endothermic (ΔΗ° 21.4 kJ/mol) chemisorption of Se(IV) by the qualified FeOOH/2.5. EXAFS data showed that Se(IV) is involved in three types of surface complexes: bidentate mononuclear edge-sharing (1E) and two types of binuclear inner-sphere (2C) linkage between the SeO32- pyramids, and Fe(O,OH)6 octahedra. The FeOOHs were evaluated by their adsorption capacity (Q10) at residual concentrations equal to the EU drinking water regulation limit of 10 μg/L, e.g. in conditions implemented in full-scale water treatment plants. The qualified FeOOH/2.5 was found to be the most effective for Se(IV) adsorption with a Q10 value 4.3 mg Se(IV)/g. In contrast, the Q10 value for Se(VI) was almost three orders of magnitude lower (10 μg Se(VI)/g) than that for Se(IV). Finally, regeneration experiments showed that FeOOHs reuse for Se(IV) removal is economically feasible and the recovery of selenium by precipitation as elemental Se contributes to green chemistry.
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Affiliation(s)
- Kyriaki Kalaitzidou
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | | | - Nickolaos Tsiftsakis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Fani Pinakidou
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Manassis Mitrakas
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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Pagliano E, LeBlanc KL, Mester Z. Selective Gas Chromatography Mass Spectrometry Method for Ultratrace Detection of Selenocyanate. Anal Chem 2019; 91:12162-12166. [PMID: 31464419 DOI: 10.1021/acs.analchem.9b02615] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The recent interest in the determination of selenocyanate (SeCN-) in wastewater systems has spurred the development of analytical methods for its determination at the ultratrace level. Since most of the current procedures require complex and costly instrumental configurations, we have developed a simple and rapid gas chromatography tandem mass spectrometry (GC/MS/MS) method able to detect SeCN- in water samples with a LOD of 0.1 ng/g Se. A 1 mL volume of aqueous sample was buffered with sodium bicarbonate and treated with triethyloxonium tetrafluoroborate for conversion of the analyte into volatile EtSeCN. The derivatization yield was higher than 90%, and it could tolerate concentrations of chloride or sulfate up to 2%. The EtSeCN was extracted in chloroform and could be detected in electron ionization and also in negative chemical ionization mode with a further gain in signal-to-noise ratio by a factor of 2. The method was applied for the analysis of natural waters with quantitation of SeCN- in the low ng/g region. The Se13C15N- internal standard could be used for isotope dilution. Quantitative spike recoveries of 1 ng/g Se were obtained from seawater and river water, and 1 ng/g Se could be quantified within a standard uncertainty of 15%.
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Affiliation(s)
- Enea Pagliano
- National Research Council Canada , 1200 Montreal Road , Ottawa , Ontario K1A 0R6 , Canada
| | - Kelly L LeBlanc
- National Research Council Canada , 1200 Montreal Road , Ottawa , Ontario K1A 0R6 , Canada
| | - Zoltán Mester
- National Research Council Canada , 1200 Montreal Road , Ottawa , Ontario K1A 0R6 , Canada
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Pyrzynska K, Sentkowska A. Liquid chromatographic analysis of selenium species in plant materials. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.12.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Kumkrong P, LeBlanc KL, Mercier PHJ, Mester Z. Selenium analysis in waters. Part 1: Regulations and standard methods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:1611-1634. [PMID: 29960686 DOI: 10.1016/j.scitotenv.2018.05.392] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 05/26/2023]
Abstract
Selenium is released into the aquatic environment through anthropogenic activities such as agricultural irrigation, coal mining, and metallurgical activities, where it acts as a reproductive toxin with negative effects on predatory fish and water fowl. Waterborne selenium concentrations are closely regulated worldwide, and various standardized methods are implemented by regulatory bodies to allow for the monitoring of selenium concentrations in different types of waters. Here, we discuss worldwide regulations relating to concentration limits of selenium in drinking, natural, and industrial waters. Focusing specifically on North America, we look at some standardized analysis methods and discuss the fact that many of these methods are not adequately sensitive to measure selenium in the concentrations outlined by the associated regulations for natural waters. We look in detail at the limitations of these methods with regards to both detection limits and interfering sample matrix components and establish the need for more sensitive and robust methods of analysis for regulatory compliance. This review is complemented by a second part (LeBlanc et al., 2018) where we discuss the state of selenium speciation analysis and importance of speciation data for decision makers in industry and regulators.
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Affiliation(s)
- Paramee Kumkrong
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada.
| | - Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Patrick H J Mercier
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Zoltán Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
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