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Liu T, Liu J, Mao X, Jiang X, Zhao Y, Qian Y. Rapid and Portable Detection of Hg and Cd in Grain Samples Based on Novel Catalytic Pyrolysis Composite Trap Coupled with Miniature Atomic Absorption Spectrometry. Foods 2023; 12:foods12091778. [PMID: 37174316 PMCID: PMC10178322 DOI: 10.3390/foods12091778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/11/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
As toxic metals, Hg and Cd are a concern for food safety and human health; their rapid and portable analysis is still a challenge. A portable and rapid Hg-Cd analyzer constructed from a metal-ceramic heater (MCH)-based electrothermal vaporizer (ETV), an on-line catalytic pyrolysis furnace (CPF), a composite Pt/Ni trap, and a homemade miniature atomic absorption spectrometer (AAS) was proposed for grain analysis in this work. To enhance sensitivity, a new folded light path was designed for simultaneous Hg and Cd analysis using charge coupled device (CCD) in AAS. To eliminate the grain matrix interference, a catalytic pyrolysis furnace with aluminum oxide fillers was utilized to couple with a composite Pt/Ni trap. The method limits of detection (LODs) were 1.1 μg/kg and 0.3 μg/kg for Hg and Cd using a 20 mg grain sample, fulfilling the real sample analysis to monitor the grain contamination quickly; linearity R2 > 0.995 was reached only using standard solution calibration, indicating the sample was free of grain matrix interference. The favorable analytical accuracy and precision were validated by analyzing real and certified reference material (CRM) grains with recoveries of 97-103% and 96-111% for Hg and Cd, respectively. The total analysis time was less than 5 min without sample digestion or use of any chemicals, and the instrumental size and power consumption were <14 kg and 270 W, respectively. Compared with other rapid methods, this newly designed Hg-Cd analyzer is proven to be simple, portable, and robust and is, thus, suitable to quickly monitor Hg and Cd contamination in the field to protect grain and food safety.
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Affiliation(s)
- Tengpeng Liu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jixin Liu
- Beijing Ability Technology Co., Ltd., Beijing 100081, China
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xiaoming Jiang
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Yabo Zhao
- Beijing Ability Technology Co., Ltd., Beijing 100081, China
| | - Yongzhong Qian
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
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Bustos DE, Toro JA, Briceño M, Rivas RE. Use of slow atomization ramp in high resolution continuum source graphite furnace atomic absorption spectrometry for the simultaneous determination of Cd and Ni in slurry powdered chocolate samples. Talanta 2022; 247:123547. [DOI: 10.1016/j.talanta.2022.123547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/28/2022]
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3
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Frohlich AC, Pereira LSF, Junges AF, Flores EMM, Paniz JNG, Duarte FA. Direct Sampling Graphite Furnace Atomic Absorption Spectrometry — A Suitable Tool for the Determination of Metallic Contaminants in Pitch. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Angelica C. Frohlich
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Leticia S. F. Pereira
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Andrizia F. Junges
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Erico M. M. Flores
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Jose N. G. Paniz
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Fabio A. Duarte
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
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von der Au M, Karbach H, Bell AM, Bauer OB, Karst U, Meermann B. Determination of metal uptake in single organisms, Corophium volutator, via complementary electrothermal vaporization/inductively coupled plasma mass spectrometry and laser ablation/inductively coupled plasma mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e8953. [PMID: 32970910 DOI: 10.1002/rcm.8953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/01/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE (Eco-)toxicological effects are mostly derived empirically and are not correlated with metal uptake. Furthermore, if the metal content is determined, mostly bulk analysis of the whole organism population is conducted; thus, biological variability is completely disregarded, and this may lead to misleading results. To overcome this issue, we compared two different solid sampling techniques for the analysis of single organisms. METHODS In this study, complementary electrothermal vaporization/inductively coupled plasma mass spectrometry (ETV/ICP-MS) ⇔ laser ablation/inductively coupled plasma mass spectrometry (LA/ICP-MS)-based methods for the analysis of individual organisms were developed and the results obtained were compared with the concentrations obtained after digestion and measured using ICP-MS. For this purpose, a common (eco-)toxicological test organism, the mud shrimp Corophium volutator, was selected. As proof-of-concept application, these organisms were incubated with environmentally relevant metals from galvanic anodes, which are often used for protection against metal corrosion in, for example, offshore wind farms. RESULTS The bulk analysis revealed that large quantities of the incubated elements were detectable. Using the ETV/ICP-MS method, we could identify a high biovariability within the population of organisms tested. Using the LA/ICP-MS method, it could be determined that the large quantities of the elements detected were due to adsorption of the metals and not due to uptake, which correlates well with the absence of (eco-)toxicological effects. CONCLUSIONS The results obtained imply the efficiency of complementary methods to explain the absence or presence of (eco-)toxicological effects. In particular, methods that allow for single-organism analysis or provide even a spatial resolution support the interpretation of ecotoxicological findings.
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Affiliation(s)
- Marcus von der Au
- Division 1.1 - Inorganic Trace Analysis, Federal Institute for Materials Research and Testing, Berlin, Germany
- Department G2 - Aquatic Chemistry, Federal Institute of Hydrology, Am Mainzer Tor 1, Koblenz, Germany
| | - Hannah Karbach
- Department G2 - Aquatic Chemistry, Federal Institute of Hydrology, Am Mainzer Tor 1, Koblenz, Germany
| | - Anna Maria Bell
- Department G3 - Biochemistry, Ecotoxicology, Federal Institute of Hydrology, Am Mainzer Tor 1, Koblenz, Germany
| | - Oliver Bolle Bauer
- Institute of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany
| | - Uwe Karst
- Institute of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany
| | - Björn Meermann
- Division 1.1 - Inorganic Trace Analysis, Federal Institute for Materials Research and Testing, Berlin, Germany
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Gómez-Nieto B, Motyzhov V, Gismera MJ, Procopio JR, Sevilla MT. Fast-sequential determination of cadmium and copper in milk powder and infant formula by direct solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105335] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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6
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Coufalík P, Uher A, Zvěřina O, Komárek J. Determination of cadmium in lichens by solid sampling graphite furnace atomic absorption spectrometry (SS-GF-AAS). ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:222. [PMID: 32146527 DOI: 10.1007/s10661-020-8186-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
The determination of trace metal contents directly from a solid sample is a trend in modern atomic spectrometry. The aim of this study was to develop an analytical method for the routine determination of Cd in lichens using solid sampling graphite furnace atomic absorption spectrometry (SS-GF-AAS). For the determination of Cd, the temperature program of the graphite furnace was optimized using a mixed matrix modifier (Pd + Mg (NO3)2 + Triton X-100). The limit of detection and the limit of quantification were 0.9 μg/kg and 3 μg/kg, respectively. The analytical method for Cd determination in the plant matrix was verified by the analysis of certified reference materials of lichens, seaweed, and rye grass. The developed procedure was applied to the study of Cd distribution in thalli of Usnea antarctica lichen from James Ross Island, Antarctica. The SS-GF-AAS analytical method is particularly suited for use in environmental studies and plant physiology (the microanalysis of anatomical structures).
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Affiliation(s)
- Pavel Coufalík
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 97, 60200, Brno, Czech Republic.
| | - Antonín Uher
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 61137, Brno, Czech Republic
| | - Ondřej Zvěřina
- Department of Public Health, Faculty of Medicine, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic
| | - Josef Komárek
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 61137, Brno, Czech Republic
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Leal GC, Mattiazzi P, Rovasi F, Molin TD, Bohrer D, do Nascimento PC, de Carvalho LM, Viana C. Determination of lead in dietary supplements by high-resolution continuum-source graphite furnace atomic absorption spectrometry with direct solid sampling. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2019.103360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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González-Álvarez RJ, Bellido-Milla D, Pinto JJ, Moreno C. A handling-free methodology for rapid determination of Cu species in seawater based on direct solid micro-samplers analysis by high-resolution continuum source graphite furnace atomic absorption spectrometry. Talanta 2020; 206:120249. [PMID: 31514883 DOI: 10.1016/j.talanta.2019.120249] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/06/2019] [Accepted: 08/09/2019] [Indexed: 10/26/2022]
Abstract
A very simple, sensible and advanced new methodology for the determination of copper species in seawater has been developed. The method consisted of two steps: first a separation/preconcentration of copper species by using liquid phase microextraction-based solvent bars followed by the direct analysis of these solid polymeric micro-samplers in an atomic absorption spectrometer provided with a device for direct analysis. For liquid microextraction, di-2-pyridylketone benzoylhydrazone (dPKBH) dissolved in octan-1-ol was selected as the extracting agent due to its ability to transport inorganic Cu species from seawater samples. The optimum chemical and physical conditions for copper micro-extraction were sample pH 8, a dPKBH concentration of 0.010 mol L-1, a stirring speed of 800 rpm and an extraction time of 10 min. A graphite furnace temperature program was optimised to assure the complete elimination of the solvent bar matrix, and the atomisation step took place at 2200 °C. The method exhibited a limit of detection of 0.026 μg L-1 of copper and a linear range up to 1.50 μg L-1, showing great repeatability and reproducibility (4.07% and 4.43%, respectively). Suitability of the method was confirmed by analysing a certified reference material (CASS-4) under optimum conditions, being the first time ever that a direct solid analysis-based method has been used for the determination of total dissolved copper concentration in seawater. Furthermore, the method was applied to the determination of the operationally defined transportable Cu fraction in seawater samples at natural conditions and the results were compared with theoretical data provided by Visual MINTEQ® 3.1 software. A mathematical model that permits to estimate total dissolved copper concentration was obtained, and the non-transportable copper fraction was calculated by difference.
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Affiliation(s)
- Rafael Jesús González-Álvarez
- Department of Analytical Chemistry, Faculty of Marine and Environmental Sciences, Instituto de Investigación Marina (INMAR). University of Cádiz, 11510, Puerto Real, Spain
| | - Dolores Bellido-Milla
- Department of Analytical Chemistry, Faculty of Sciences, University of Cádiz, 11510, Puerto Real, Spain
| | - Juan José Pinto
- Department of Analytical Chemistry, Faculty of Marine and Environmental Sciences, Instituto de Investigación Marina (INMAR). University of Cádiz, 11510, Puerto Real, Spain.
| | - Carlos Moreno
- Department of Analytical Chemistry, Faculty of Marine and Environmental Sciences, Instituto de Investigación Marina (INMAR). University of Cádiz, 11510, Puerto Real, Spain
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Simultaneous determination of iron and nickel as contaminants in multimineral and multivitamin supplements by solid sampling HR-CS GF AAS. Talanta 2019; 195:745-751. [DOI: 10.1016/j.talanta.2018.12.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 11/22/2022]
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10
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Barrera EG, Bazanella D, Castro PW, Boschetti W, Vale MG, Dessuy MB. Alternative method for chromium determination in pharmaceutical drugs by HR-CS GF AAS and direct analysis of solid samples. Microchem J 2017. [DOI: 10.1016/j.microc.2017.02.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Pereira LSF, Pedrotti MF, Enders MSP, Albers CN, Pereira JSF, Flores EMM. Multitechnique Determination of Halogens in Soil after Selective Volatilization Using Microwave-Induced Combustion. Anal Chem 2016; 89:980-987. [DOI: 10.1021/acs.analchem.6b04300] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. S. F. Pereira
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - M. F. Pedrotti
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - M. S. P. Enders
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - C. N. Albers
- Department
of Geochemistry, Geological Survey of Denmark and Greenland, Ø.
Voldgade 10, 1350 Copenhagen, Denmark
- Center
for Permafrost (CENPERM), Department of Geosciences and Natural Resource
Management, University of Copenhagen, 1350 Copenhagen, Denmark
| | - J. S. F. Pereira
- Departamento
de Química Inorgânica, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Rio
Grande do Sul, Brazil
| | - E. M. M. Flores
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
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12
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Effect of different precursors on generation of reference spectra for structural molecular background correction by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry: Determination of antimony in cosmetics. Talanta 2016; 161:547-553. [DOI: 10.1016/j.talanta.2016.09.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/02/2016] [Accepted: 09/04/2016] [Indexed: 11/23/2022]
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13
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Direct and Simultaneous Determination of Copper and Iron in Flours by Solid Sample Analysis and High-Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0600-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Lead screening in DBS by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry: application to newborns and pregnant women. Bioanalysis 2015; 7:2057-70. [DOI: 10.4155/bio.15.124] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background: DBS have become a clinical specimen especially adequate for establishing home-based collection protocols. In this work, high-resolution continuum source graphite furnace atomic absorption spectrometry is evaluated for the direct monitoring of Pb in DBS, both as a quantitative tool and a screening method. Methodology: The development of the screening model is based on the establishment of the unreliability region around the threshold limits, 100 or 50 μg l-1. More than 500 samples were analyzed to validate the model. Conclusion: The screening method demonstrated high sensitivity (the rate of true positives detected was always higher than 95%), an excellent LOD (1 µg l-1) and high throughput (10 min per sample).
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da Silva YJAB, do Nascimento CWA, Biondi CM. Comparison of USEPA digestion methods to heavy metals in soil samples. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:47-53. [PMID: 23887889 DOI: 10.1007/s10661-013-3354-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 07/15/2013] [Indexed: 06/02/2023]
Abstract
The use of appropriate analytical methods is of paramount importance for risk assessment and monitoring of potentially toxic metals in soils. In this sense, the objective of this study was to compare the effectiveness of two sample digestion methods, recommended by the Brazilian legislation for the management of contaminated areas (CONAMA 2009), aiming at the determination of environmentally available metal concentrations (USEPA 3050B, USEPA 3051A), as well as a total digestion method (USEPA 3052). Samples from 10 classes of soils were analyzed for Cu, Zn, Cd, Pb, Ni, and Hg. The results showed that the USEPA method 3051A is more efficient than the USEPA method 3050B in the extraction of levels considered environmentally available of Zn, Cu, Cd, Pb, and Ni. Besides providing a higher recovery of these elements, the method requires shorter digestion time, lower consumption of acids, and reduced risk of contamination. The USEPA method 3051A showed greater efficiency in Hg extraction in soils with higher clay content. Therefore, it is suitable for situations where a wide range of soils with different mineralogical characteristics are analyzed or in order to decrease the losses due to volatilization of the element in open systems.
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16
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Elemental analyses of soil and sediment fused with lithium borate using isotope dilution laser ablation-inductively coupled plasma-mass spectrometry. Anal Chim Acta 2013; 793:72-8. [DOI: 10.1016/j.aca.2013.07.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 07/01/2013] [Accepted: 07/09/2013] [Indexed: 11/18/2022]
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17
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Silvestre DM, Nomura CS. Direct determination of potentially toxic elements in rice by SS-GF AAS: development of methods and applications. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:6299-6303. [PMID: 23763652 DOI: 10.1021/jf401726r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The development of methods for direct determinations of Al, Cd, and Pb in rice by SS-GF AAS is presented. Heating program optimization associated with the use of an adequate chemical modifier containing Pd + Mg allowed direct analysis against aqueous calibrations. The obtained LOD values were 114.0, 3.0, and 16.0 μg kg⁻¹ for Al, Cd, and Pb, respectively. Important parameters associated with a solid sampling analysis were investigated, such as minimum and maximum sample mass size and analyte segregation. Seventeen rice samples available in São Paulo City were analyzed, and all of them presented analyte mass fractions less than the maximum allowed by legislation. The influences of rice washing and the cooking procedure were also investigated. The washing procedure diminished the Al and Pb total mass fractions, indicating an exogenous grain contamination. The cooking procedure diminished the Cd total mass fraction. Rice cooking using an aluminum container did not cause a significant increase in the Al mass fraction in the rice, indicating no translocation of this element from container to food. In general, coarse rice presented higher levels of Al when compared to polished or parabolized rice.
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18
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Sample preparation methods for subsequent determination of metals and non-metals in crude oil—A review. Anal Chim Acta 2012; 746:15-36. [DOI: 10.1016/j.aca.2012.08.009] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 08/06/2012] [Accepted: 08/07/2012] [Indexed: 11/19/2022]
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19
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Figuerêdo Rêgo J, Virgilio A, Nóbrega JA, Gomes Neto JA. Determination of lead in medicinal plants by high-resolution continuum source graphite furnace atomic absorption spectrometry using direct solid sampling. Talanta 2012; 100:21-6. [DOI: 10.1016/j.talanta.2012.08.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 08/24/2012] [Accepted: 08/27/2012] [Indexed: 11/25/2022]
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20
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Pinto FG, Junior RE, Saint'Pierre TD. Sample Preparation for Determination of Rare Earth Elements in Geological Samples by ICP-MS: A Critical Review. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.677778] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Török P, Žemberyová M. Comparison of chemical modifiers for direct determination of Cd, Cu and Zn in food stuffs by solid-sampling-ETAAS. Food Chem 2012; 132:554-60. [DOI: 10.1016/j.foodchem.2011.10.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 06/29/2011] [Accepted: 10/22/2011] [Indexed: 10/15/2022]
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22
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Garrigues S, de la Guardia M. Direct Determination Methods Without Sample Preparation. CHALLENGES IN GREEN ANALYTICAL CHEMISTRY 2011. [DOI: 10.1039/9781849732963-00013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The greenest alternatives to the traditional methods of analysis based on sample digestion and/or analyte extraction, are clearly those that permit the direct determination of as many analytes as possible without any sample pretreatment. This chapter deals with the main aspects and applications of remote sensing and teledetection systems, and the use of non-invasive methods of analysis, which permit a direct analysis of samples without any sample damage. In addition, the possibilities offered by several techniques to analyse solids directly without the use of reagents through the direct atomization of small portions of samples, the arc, spark or laser ablation of materials for their analysis by optical emission or mass spectrometry, are evaluated. This chapter attempts to provide a literature survey of all the aforementioned tools which have been evaluated from the perspective of greening analytical practices.
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Affiliation(s)
- S. Garrigues
- Departamento de Química Analítica, Edificio de Investigación, Universidadde Valencia C/. Dr. Moliner 50, 46100 Burjassot Valencia Spain
| | - M. de la Guardia
- Departamento de Química Analítica, Edificio de Investigación, Universidadde Valencia C/. Dr. Moliner 50, 46100 Burjassot Valencia Spain
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Chao MY, Liu KT, Hsia YC, Liao MH, Shen LH. Direct determination of ECD in ECD Kit: a solid sample quantitation method for active pharmaceutical ingredient in drug product. J Biomed Biotechnol 2011; 2011:196238. [PMID: 21687539 PMCID: PMC3114541 DOI: 10.1155/2011/196238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2010] [Revised: 02/25/2011] [Accepted: 03/11/2011] [Indexed: 11/17/2022] Open
Abstract
Technetium-99m ethyl cysteinate dimer (Tc-99m-ECD) is an essential imaging agent used in evaluating the regional cerebral blood flow in patients with cerebrovascular diseases. Determination of active pharmaceutical ingredient, that is, L-Cysteine, N, N'-1,2-ethanediylbis-, diethyl ester, dihydrochloride (ECD) in ECD Kit is a relevant requirement for the pharmaceutical quality control in processes of mass fabrication. We here presented a direct solid sample determination method of ECD in ECD Kit without sample dissolution to avoid the rapid degradation of ECD. An elemental analyzer equipped with a nondispersive infrared detector and a calibration curve of coal standard was used for the quantitation of sulfur in ECD Kit. No significant matrix effect was found. The peak area of coal standard against the amount of sulfur was linear over the range of 0.03-0.10 mg, with a correlation coefficient (r) of 0.9993. Method validation parameters were achieved to demonstrate the potential of this method.
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Affiliation(s)
- Ming-Yu Chao
- Chemical Analysis Division, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
| | - Kung-Tien Liu
- Chemical Analysis Division, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
| | - Yi-Chih Hsia
- Chemical Analysis Division, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
| | - Mei-Hsiu Liao
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
| | - Lie-Hang Shen
- Institute of Nuclear Energy Research (INER), Taoyuan 32546, Taiwan
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Nemati K, Abu Bakar NK, Bin Abas MR, Sobhanzadeh E, Low KH. Comparative study on open system digestion and microwave assisted digestion methods for metal determination in shrimp sludge compost. JOURNAL OF HAZARDOUS MATERIALS 2010; 182:453-459. [PMID: 20638781 DOI: 10.1016/j.jhazmat.2010.06.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Revised: 06/11/2010] [Accepted: 06/12/2010] [Indexed: 05/29/2023]
Abstract
The aim of this work was to evaluate two different digestion methods for the determination of the total concentration of metals (Zn, Cu, Cr, Ni, Pb and Cd) in shrimp sludge compost. The compost made from shrimp aquaculture sludge co-composted with organic materials (peat, crushed bark and manure) was used as an organic growing medium for crop. Open system digestion and microwave assisted digestion procedures were employed in sample preparation. Various combinations and volumes of hydrofluoric, nitric and hydrochloric acids were evaluated for the efficiency of both methods. A certified reference material (CRM 146) was used in the comparison of these two digestion methods. The results revealed a good agreement between both procedures and the certified valued. The best recoveries were found in the range between 95% and 99% for microwave assisted digestion with a mixture of 2 ml of HF, 6 ml of HNO(3) and 2 ml of HCl. This procedure was recommended as the method for digestion the compost herein based on the recovery analysis and time taken.
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Affiliation(s)
- Keivan Nemati
- Environmental Research Group, Department of Chemistry, University of Malaya, Kuala Lumpur 50603, Malaysia. keivan
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Bizzi CA, Paniz JNG, Rodrigues LF, Dressler VL, Flores ÉMDM. Solid sampling coupled to flame furnace atomic absorption spectrometry for Mn and Ni determination in petroleum coke. Microchem J 2010. [DOI: 10.1016/j.microc.2010.01.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Grindlay G, Mora J, Gras L, de Loos-Vollebregt M. Ultratrace determination of Pb, Se and As in wine samples by electrothermal vaporization inductively coupled plasma mass spectrometry. Anal Chim Acta 2009; 652:154-60. [DOI: 10.1016/j.aca.2009.05.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Revised: 04/08/2009] [Accepted: 05/15/2009] [Indexed: 11/29/2022]
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Electrothermal vaporization–inductively coupled plasma-mass spectrometry: A versatile tool for tackling challenging samples. Anal Chim Acta 2009; 648:23-44. [DOI: 10.1016/j.aca.2009.06.027] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Revised: 06/10/2009] [Accepted: 06/11/2009] [Indexed: 11/23/2022]
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Al-Harahsheh M, Kingman S, Somerfield C, Ababneh F. Microwave-assisted total digestion of sulphide ores for multi-element analysis. Anal Chim Acta 2009; 638:101-5. [DOI: 10.1016/j.aca.2009.02.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2008] [Revised: 02/08/2009] [Accepted: 02/09/2009] [Indexed: 11/30/2022]
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Srogi K. Developments in the Determination of Trace Elements by Atomic Spectroscopic Techniques. ANAL LETT 2008. [DOI: 10.1080/00032710801934445] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Resano M, García-Ruiz E, Alloza R, Marzo MP, Vandenabeele P, Vanhaecke F. Laser Ablation-Inductively Coupled Plasma Mass Spectrometry for the Characterization of Pigments in Prehistoric Rock Art. Anal Chem 2007; 79:8947-55. [DOI: 10.1021/ac0712953] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Resano
- Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain, E-50009, Laboratory of Research and Analysis of Cultural Heritage Materials, Aragón Government, Av. San José 5, Cuarte de Huerva, Zaragoza, Spain, and Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, Ghent, Belgium, B-9000
| | - Esperanza García-Ruiz
- Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain, E-50009, Laboratory of Research and Analysis of Cultural Heritage Materials, Aragón Government, Av. San José 5, Cuarte de Huerva, Zaragoza, Spain, and Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, Ghent, Belgium, B-9000
| | - Ramiro Alloza
- Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain, E-50009, Laboratory of Research and Analysis of Cultural Heritage Materials, Aragón Government, Av. San José 5, Cuarte de Huerva, Zaragoza, Spain, and Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, Ghent, Belgium, B-9000
| | - Maria P. Marzo
- Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain, E-50009, Laboratory of Research and Analysis of Cultural Heritage Materials, Aragón Government, Av. San José 5, Cuarte de Huerva, Zaragoza, Spain, and Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, Ghent, Belgium, B-9000
| | - Peter Vandenabeele
- Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain, E-50009, Laboratory of Research and Analysis of Cultural Heritage Materials, Aragón Government, Av. San José 5, Cuarte de Huerva, Zaragoza, Spain, and Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, Ghent, Belgium, B-9000
| | - Frank Vanhaecke
- Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain, E-50009, Laboratory of Research and Analysis of Cultural Heritage Materials, Aragón Government, Av. San José 5, Cuarte de Huerva, Zaragoza, Spain, and Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, Ghent, Belgium, B-9000
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Zhang Y, Jiang Z, He M, Hu B. Determination of trace rare earth elements in coal fly ash and atmospheric particulates by electrothermal vaporization inductively coupled plasma mass spectrometry with slurry sampling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2007; 148:459-67. [PMID: 17466423 DOI: 10.1016/j.envpol.2006.12.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2006] [Revised: 12/08/2006] [Accepted: 12/10/2006] [Indexed: 05/15/2023]
Abstract
A method of fluorination assisted electrothermal vaporization (FETV)-ICP-MS with polytetrafluoroethylene as fluorinating reagent was developed for the direct determination of trace rare earth elements (REEs) in coal fly ash and atmospheric particulates. Under the optimal conditions, the detection limits for REEs were 0.1 pg m(-3)(Eu) to 6.7 pg m(-3)(Nd) with the precisions of 4.1%(Yb) to 10%(La) (c=1 microg L(-1), n=9). The proposed method was applied to determine trace REEs in coal fly ash, airborne particulates and NIES SRM No. 8 Vehicle Exhaust Particulates. It was found that the determined values for Y, La, Pr and Nd obtained by slurry sampling FETV-ICP-MS with external calibration coincided with that obtained by pneumatic nebulization (PN)-ICP-MS and slurry sampling FETV-ICP-MS with standard addition. However, the determined values for Ce and Sm obtained by slurry sampling FETV-ICP-MS with external calibration were lower than that obtained by PN-ICP-MS and slurry sampling FETV-ICP-MS with standard addition.
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Affiliation(s)
- Yuefei Zhang
- Department of Chemistry, Wuhan University, Wuhan, Hubei Province 430072, PR China
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Yin J, Hu B, He M, Jiang Z. Determination of trace rare earth elements in environmental samples by low temperature electrothermal vaporization inductively coupled plasma mass spectrometry after synergistic extraction with dimethylheptyl methyl phosphate and 1-phenyl-3-methyl-4-benzoyl-pyrazalone-5. Anal Chim Acta 2007; 594:61-8. [PMID: 17560386 DOI: 10.1016/j.aca.2007.05.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2007] [Revised: 04/28/2007] [Accepted: 05/06/2007] [Indexed: 10/23/2022]
Abstract
Synergistic extraction of trace rare earth elements (REEs) from nitrate solutions using mixtures of dimethylheptyl methyl phosphate (P350) and 1-phenyl-3-methyl-4-benzoyl-pyrazalone-5 (PMBP) in hexamethylene has been investigated. The factors affecting the synergistic extraction of rare earth ions, such as pH, organic solvent and phase ratio of organic phase to aqueous phase were systematically studied. The synergistic enhancement factors of P350 and PMBP for REEs were calculated to be 4.3-5.8. After the synergistic extraction, the postextraction organic phase was directly introduced into the graphite furnace for electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS) determination. It was found that PMBP along with P350 has an obvious chemical modification for REEs, and the limits of detection (LODs) for 15 REEs were in the range of 0.02-0.09 ng L(-1). The proposed method was found to be more suitable for the analysis of environmental samples with complex matrix.
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Affiliation(s)
- Jun Yin
- Department of Chemistry, Wuhan University, Wuhan 430072, PR China
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Resano M, García-Ruiz E, Belarra M, Vanhaecke F, McIntosh K. Solid sampling in the determination of precious metals at ultratrace levels. Trends Analyt Chem 2007. [DOI: 10.1016/j.trac.2007.01.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Resano M, Briceño J, Aramendía M, Belarra M. Solid sampling-graphite furnace atomic absorption spectrometry for the direct determination of boron in plant tissues. Anal Chim Acta 2007; 582:214-22. [DOI: 10.1016/j.aca.2006.09.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 09/02/2006] [Accepted: 09/14/2006] [Indexed: 11/24/2022]
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Resano M, Aramendía M, García-Ruiz E, Crespo C, Belarra MA. Solid sampling-graphite furnace atomic absorption spectrometry for the direct determination of silver at trace and ultratrace levels. Anal Chim Acta 2006; 571:142-9. [PMID: 17723432 DOI: 10.1016/j.aca.2006.04.037] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2006] [Revised: 04/13/2006] [Accepted: 04/18/2006] [Indexed: 11/22/2022]
Abstract
In this work, the possibilities of solid sampling-graphite furnace atomic absorption spectrometry for the direct determination of silver in solid samples of very different nature (a biological sample, a soil, an ore concentrate and a polymer) and showing substantial differences in their analyte content (from approximately, 40 ng g(-1) up to 350 microg g(-1)) have been evaluated, the goal always being to develop fast methods, only relying on the use of aqueous standards for calibration. Different factors had to be taken into account in order to develop suitable procedures for all the samples under investigation. Among the most important ones, the following can be mentioned: (i) optimization of the temperature program in order to selectively atomize the analyte; (ii) the use of chemical modifiers (such as Pd or HNO3), depending on the sample characteristics; (iii) appropriate wavelength, argon flow and sample mass selection (depending on the analyte content); (iv) the use of 3-field mode Zeeman-effect background correction in order to further expand the linear range up to 1000 ng of Ag, which was needed for analysis of the sample showing the highest Ag content (polypropylene). The procedures finally proposed show interesting features for the determination of silver in solid samples: the advantage of using aqueous standard solutions for calibration, a high sample throughput (approximately, 15 min per sample), a low detection limit (2 ng g(-1)), sufficient precision (R.S.D. values in the vicinity of 10%) and a reduced risk of analyte losses and contamination.
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Affiliation(s)
- M Resano
- Department of Analytical Chemistry, University of Zaragoza, E-50009 Zaragoza, Spain.
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Gallindo Borges DL, da Silva AF, José Curtius A, Welz B, Heitmann U. Determination of Lead in Coal Using Direct Solid Sampling and High-Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry. Mikrochim Acta 2006. [DOI: 10.1007/s00604-006-0483-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang Y, Jiang Z, Hu B. Determination of refractory elements in atmospheric particulates using slurry sampling electrothermal vaporization inductively coupled plasma optical emission spectrometry and inductively coupled plasma mass spectrometry with polyvinylidene fluoride as chemical modifier. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2006; 20:2091-8. [PMID: 16773674 DOI: 10.1002/rcm.2565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Electrothermal vaporization (ETV) inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS) with polyvinylidene fluoride (PVDF) as chemical modifier are critically compared for the determination of refractory elements in coal fly ash and airborne particulates. The atmospheric particulates that collected on a PVDF filter were introduced into the graphite furnace in the form of a slurry by dissolving the filter in dimethylformamide, and the dissolved filter PVDF, along with additional added PVDF powder, was used as a chemical modifier for subsequent ETV-ICP-OES and ETV-ICP-MS determination. The vaporization behaviors of analytes (Ti, Zr, V, Mo, Cr, La) in ETV-ICP-OES/MS were studied in detail, and the optimal ETV operating parameters were obtained. Under the optimized operating conditions, the detection limits of target elements were 0.08-2.7 ng m(-3) for ETV-ICP-OES and 0.5-50 pg m(-3) for ETV-ICP-MS, respectively, with analytical precisions of 3.5-7.3% for ETV-ICP-OES and 3.9-9.6% for ETV-ICP-MS, respectively. The tolerable amounts of matrix elements for ETV-ICP-OES are higher than for ETV-ICP-MS. Both ETV-ICP-OES and ETV-ICP-MS were used to directly determine the trace refractory elements in coal fly ash and airborne particulates and the analytical results are comparable.
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Affiliation(s)
- Yuefei Zhang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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da Silva AF, Borges DLG, Lepri FG, Welz B, Curtius AJ, Heitmann U. Determination of cadmium in coal using solid sampling graphite furnace high-resolution continuum source atomic absorption spectrometry. Anal Bioanal Chem 2005; 382:1835-41. [PMID: 15965684 DOI: 10.1007/s00216-005-3327-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2005] [Revised: 05/12/2005] [Accepted: 05/13/2005] [Indexed: 11/24/2022]
Abstract
This work describes the development of a method to determine cadmium in coal, in which iridium is used as a permanent chemical modifier and calibration is performed against aqueous standards by high-resolution continuum source atomic absorption spectrometry (HR-CS AAS). This new instrumental concept makes the whole spectral environment in the vicinity of the analytical line accessible, providing a lot more data than just the change in absorbance over time available from conventional instruments. The application of Ir (400 microg) as a permanent chemical modifier, thermally deposited on the pyrolytic graphite platform surface, allowed pyrolysis temperatures of 700 degrees C to be used, which was sufficiently high to significantly reduce the continuous background that occurred before the analyte signal at pyrolysis temperatures <700 degrees C. Structured background absorption also occurred after the analyte signal when atomization temperatures of >1600 degrees C were used, which arose from the electron-excitation spectrum (with rotational fine structure) of a diatomic molecule. Under optimized conditions (pyrolysis at 700 degrees C and atomization at 1500 degrees C), interference-free determination of cadmium in seven certified coal reference materials and two real samples was achieved by direct solid sampling and calibrating against aqueous standards, resulting in good agreement with the certified values (where available) at the 95% confidence level. A characteristic mass of 0.4 pg and a detection limit of 2 ng g(-1), calculated for a sample mass of 1.0 mg coal, was obtained. A precision (expressed as the relative standard deviation, RSD) of <10% was typically obtained when coal samples in the mass range 0.6-1.2 mg were analyzed.
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