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Jakkielska D, Frankowski M, Zioła-Frankowska A. Speciation analysis of arsenic in honey using HPLC-ICP-MS and health risk assessment of water-soluble arsenic. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134364. [PMID: 38657508 DOI: 10.1016/j.jhazmat.2024.134364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/31/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
It is well known that arsenic is one of the most toxic elements. However, measuring total arsenic content is not enough, as it occurs in various forms that vary in toxicity. Since honey can be used as a bioindicator of environmental pollution, in the present study the concentration of arsenic and its species (As(III), As(V), DMA, MMA and AsB) was determined in honey samples from mostly Poland and Ukraine using HPLC-ICP-MS hyphenated technique. The accuracy of proposed methods of sample preparation and analysis was validated by analyzing certified reference materials. Arsenic concentration in honey samples ranged from 0.12 to 13 μg kg-1, with mean value of 2.3 μg kg-1. Inorganic arsenic forms, which are more toxic, dominated in honey samples, with Polish honey having the biggest mean percentage of inorganic arsenic species, and Ukrainian honey having the lowest. Furthermore, health risks resulting from the consumption of arsenic via honey were assessed. All Target Hazard Quotient (THQ) values, for total water-soluble arsenic and for each form, were below 1, and all Carcinogenic Risk (CR) values were below 10-4, which indicates no potential health risks associated with consumption of arsenic via honey at average or recommended levels.
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Affiliation(s)
- Dorota Jakkielska
- Department of Analytical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Marcin Frankowski
- Department of Analytical and Environmental Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Anetta Zioła-Frankowska
- Department of Analytical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
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2
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Narukawa T, Okabayashi S, Tsuboi M, Chiba K. Combination of isotope dilution with liquid chromatography-inductively coupled plasma mass spectrometry for the simultaneous monitoring and evaluation of cadmium and inorganic arsenic in polished rice. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1523-1530. [PMID: 38390663 DOI: 10.1039/d3ay02224b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
A new monitoring and evaluation technique for cadmium (Cd) and inorganic arsenic (i-As) in rice was developed, where the isotope dilution (ID) method was applied in combination with high performance liquid chromatography-inductively coupled plasma mass spectrometry (LC-ICP-MS), following heat-assisted extraction. Cadmium and i-As in a rice sample were extracted using the HNO3-H2O2 extractant, and an appropriate amount of enriched 111Cd was spiked into it. Cadmium and As species were measured simultaneously by LC-ICP-MS. The cadmium concentration was calculated from the isotope dilution analysis, and i-As was determined by the comparison (1 point calibration) method using additional 111Cd as an internal standard. The proposed method provides accurate and precise determination of Cd based on the isotope dilution analysis. Moreover, it can be applied to a rapid screening test to find contaminated rice samples, by means of monitoring the intensity ratios of natural 111Cd and i-As to the additional 111Cd. The developed technique was applied to analyzing multiple rice reference materials, and the measurement results of Cd and i-As agreed with the certified values within the uncertainty range. It is noted that the grain size of rice samples does not affect the extraction data, when the rice sample is crushed into powder less than 850 μm. The proposed method was very useful for the monitoring and evaluation of Cd and i-As in rice as a precise analytical method as well as a screening method.
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Affiliation(s)
- Tomohiro Narukawa
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8563, Japan.
| | - Satoki Okabayashi
- Department of Applied Chemistry for Environment, Kwansei Gakuin University, 1 Uegahara, Gakuen, Sanda, Hyogo, 669-1337, Japan
| | - Motohiro Tsuboi
- Department of Applied Chemistry for Environment, Kwansei Gakuin University, 1 Uegahara, Gakuen, Sanda, Hyogo, 669-1337, Japan
| | - Koichi Chiba
- Department of Applied Chemistry for Environment, Kwansei Gakuin University, 1 Uegahara, Gakuen, Sanda, Hyogo, 669-1337, Japan
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3
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Optimization of Extraction Conditions and Validation of the Method for Determination of Arsenic Species in Carrageenan-Producing Seaweed, Kappaphycus spp., Using HPLC-ICP-MS. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02334-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Roel A, Campos F, Verger M, Huertas R, Carracelas G. Regional variability of arsenic content in Uruguayan polished rice. CHEMOSPHERE 2022; 288:132426. [PMID: 34606901 DOI: 10.1016/j.chemosphere.2021.132426] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/24/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Characterization of the country internal variability of arsenic (As) accumulation in rice grain across different rice production regions is very important in order to analyze its compliance with international and regional limits. A robust sampling study scheme (n = 150 samples) was performed to determine total arsenic (tAs) and inorganic (iAs) levels from polished rice grain covering all rice producing regions along two growing seasons. The mean and median concentration of tAs were 0.178 mg kg-1 and 0.147 mg kg-1, with a minimum and maximum value of 0.015 mg kg-1 and 0.629 mg kg-1, respectively and a coefficient of variation of 63.6%. The mean and median concentration of iAs were 0.062 mg kg-1 and 0.055 mg kg-1 respectively ranging from 0.005 mg kg-1 up to a maximum of 0.195 mg kg-1 and a coefficient of variation of 51.5%. A moderate correlation was revealed within iAs and tAs. Levels of iAs in all of the samples were below the international limits of 0.2 mg kg-1 according to the international limits for human health by the Codex Alimentarius (FAO and WHO, 2019). Rice fields cultivated on soils originated from igneous geological material reported lower arsenic levels accumulated in rice grain in relation to sedimentary soils. Japonica cultivars presented significantly lower tAs and iAs concentrations than Indica ones (p = 0.0121 and p < 0.0001; respectively). Consumption of rice by male and female adults in Uruguay is safe according to its level of annual consumption and based on the mean iAs levels determined in this study.
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Affiliation(s)
- A Roel
- Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay.
| | - F Campos
- Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay
| | - M Verger
- Technological Laboratory of Uruguay LATU, Montevideo, Uruguay
| | - R Huertas
- Technological Laboratory of Uruguay LATU, Montevideo, Uruguay
| | - G Carracelas
- Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay
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5
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Ebraheim G, Karbassi A, Mehrdadi N. The thermodynamic stability, potential toxicity, and speciation of metals and metalloids in Tehran runoff, Iran. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:4719-4740. [PMID: 33973140 DOI: 10.1007/s10653-021-00966-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 05/01/2021] [Indexed: 06/12/2023]
Abstract
Surface runoff is the most significant source of water in dry cities like Tehran. The surface runoff is polluted by heavy metals, which their risk level is a function of their speciation. Herein, Tehran runoff quality and the speciation of metals and metalloids were investigated. The results of quality showed that oxidation-reduction potential (Eh) and pH ranged from + 186 to + 230 mV and from 7.31 to 10.29, respectively. Cluster analysis indicated that Cr, Si, Mn, Fe, Pb, Se, Th, Ba, Ni, Li, and Sr had similar behaviors and origins, and salinity played an active role in restricting their concentrations. Eh and dissolved oxygen (DO) negatively affected the concentrations of all the studied elements. The speciation model (according to HSC Chemistry program) exhibited that all the studied elements are stable; however, in two cases, they would become unstable (pH < 7, Eh < - 480 mV or Eh > 1100 mV) and (pH > 10, Eh < - 570 mV or Eh > 970 mV). Also, Ba, Cd, Li, Mn, Al, As, Sr, Cr, Si, and Se are present in bioavailable species and As and Cd in the runoff exist in high toxic oxidation states of + 3 and + 2, respectively. The linear regression of Cu, Co, Cd, Zn, and As with Eh provided a good fit, and all of these metals were significant at levels 1 and 5%. Finally, it is recommended to continuously monitor the Eh-pH changes for investigating the potential toxicity of metals and predicting the metal pollution by regression equations in any other stations.
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Affiliation(s)
- Ghazal Ebraheim
- Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, P.O. Box 14155-6135, Tehran, Iran
| | - Abdolreza Karbassi
- Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, P.O. Box 14155-6135, Tehran, Iran.
| | - Naser Mehrdadi
- Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, P.O. Box 14155-6135, Tehran, Iran
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6
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Assessment of organic and inorganic arsenic species in Sengcu rice from terraced paddies and commercial rice from lowland paddies in Vietnam. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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The amino - functionalized magnetic graphene oxide combined with graphite furnace atomic absorption spectrometry for determination of trace inorganic arsenic species in water samples. Talanta 2021; 232:122425. [PMID: 34074411 DOI: 10.1016/j.talanta.2021.122425] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/06/2021] [Accepted: 04/10/2021] [Indexed: 02/07/2023]
Abstract
A novel adsorbent of magnetic graphene oxide (GO) chemically modified by cysteamine hydrochloride (Fe3O4@SiO2/GO-NH2) through thiol-ene click chemistry reaction was synthesized. The prepared Fe3O4@SiO2/GO-NH2 exhibit selective adsorption to As(V) with high adsorption capacity (52.66 mg g-1). Taking Fe3O4@SiO2/GO-NH2 as the adsorbents, a new method of magnetic solid phase extraction (MSPE) combined with graphite furnace atomic absorption spectrometry (GFAAS) was developed in determining trace-level inorganic arsenic species (As(III) and As(V)) in environmental water and bottled water samples. Various experimental parameters affecting the MSPE have been optimized. Under the optimal experimental parameters, the limit of detection of the established method for As(V) was 1.02 ng L-1, the relative standard deviations were 7.9% (intra-day, c = 50 ng L-1, n = 5) and 4.6% (inter-day, c = 50 ng L-1, n = 7), respectively, and the enrichment factor of the method was 392. GBW08666 and GBW08667 (certified reference material) were analyzed to confirm the accuracy of the method, and the results were matched well with the certified values. The established MSPE-GFAAS method was successfully applied in analyzing trace/ultratrace As(III) and As(V) in real water samples.
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8
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Method validation for As speciation in rice using LC-ICP-MS and the inorganic arsenic limit for Brazilian rice. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103849] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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9
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Wang Y, Bi Y, Wang R, Wang L, Qu H, Zheng L. DNA-Gated Graphene Field-Effect Transistors for Specific Detection of Arsenic(III) in Rice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1398-1404. [PMID: 33433214 DOI: 10.1021/acs.jafc.0c07052] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As one of the most toxic forms of arsenic, inorganic As(III) is easy to accumulate in rice, leading to severe public health problems. Effective control of As(III) requires the development of fast analytical methods for its detection with high sensitivity and specificity. Toward this end, in this work, we report the fabrication of an As(III) electrochemical sensor based on a solution-gated graphene transistor (SGGT) platform with a novel sensing mechanism. The gold gate electrode of the SGGT was modified with DNA probes and then blocked with bovine serum albumin (BSA). The specific interaction between As(III) and gold disrupted the adsorption states of DNA probes, redistributing surface charges on the gate electrode, further leading to potential drop changes at the interfaces of the gate electrode and graphene active layer. This new mechanism based on DNA-charge-redistribution-induced SGGT current responses (denoted as "DNA-SGGT") was found to greatly improve the selectivity of the sensor: the response of DNA-SGGT to As(III) was effectively enhanced fourfold, while to other interfering cations, it was significantly reduced. The optimized sensor showed a detection limit as low as 5 nM with superior selectivity to As(III). The as-prepared DNA-SGGT-based sensor has also been successfully applied to the detection of As(III) in practical rice samples with a high recovery rate, showing great potential for heavy metal detection in many types of food samples.
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Affiliation(s)
- Yuhong Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yulong Bi
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Rongrong Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lu Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hao Qu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
- Intelligent Interconnected Systems Laboratory of Anhui Province, Hefei University of Technology, Hefei 230009, China
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10
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Chu DB, Duong HT, Nguyet Luu MT, Vu-Thi HA, Ly BT, Loi VD. Arsenic and Heavy Metals in Vietnamese Rice: Assessment of Human Exposure to These Elements through Rice Consumption. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:6661955. [PMID: 33552612 PMCID: PMC7846392 DOI: 10.1155/2021/6661955] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 05/16/2023]
Abstract
In this work, twelve heavy metals and arsenic, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, and Zn, in a rice sample collected from some areas of Vietnam have been quantified and implemented by using multiple analytical platforms such as ICP-MS, AAS, and mercury analyser. Seventy rice samples collected from the Red River Delta and mining zone activity were analysed. Concentration of heavy metals and arsenic in rice was analysed after appropriated sample digestion using internal or external calibration curves. The mean concentration (mg kg-1 dried weight) of the analysed elements in rice samples decreased on the order of Mn (19.268) > Fe (13.624) > Zn (8.163) > Cu (3.138) > Ni (0.384) > Cr (0.296) > Co (0.279) > As (0.115) > Cd (0.111) > Pb (0.075) > Hg (0.007) > Se (<LOD). Mercury, a highly toxic element, has been only found in rice samples collected in the mining activity zone (frequency detection 14.5% of total samples). The experimental results indicated that the heavy metals and arsenic found in rice collected from mining activity zone were higher than those in rice harvested from normal cultivated areas like the Red River Delta. The heavy metals and arsenic content in Vietnamese rice samples were also compared with the concentration of heavy metals in other foreign rice samples in some recent publications. The estimated daily intake through rice consumption was calculated and compared with the level proposed by the Food and Agriculture Organization of the United Nations. The results indicated that the provisional daily intake of Cd was higher than the level proposed by FAO, while the intake of other heavy metals was in an acceptable range of CODEX standard.
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Affiliation(s)
- Dinh Binh Chu
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Hai Ba Trung, Hanoi 100000, Vietnam
| | - Hung Tuan Duong
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Cau Giay, Hanoi 100000, Vietnam
| | - Minh Thi Nguyet Luu
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Cau Giay, Hanoi 100000, Vietnam
| | - Hong-An Vu-Thi
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Hai Ba Trung, Hanoi 100000, Vietnam
| | - Bich-Thuy Ly
- School of Environmental Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet Hai Ba Trung, Hanoi 100000, Vietnam
| | - Vu Duc Loi
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Cau Giay, Hanoi 100000, Vietnam
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11
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Zou H, Zhou C, Li Y, Yang X, Wen J, Song S, Li C, Sun C. Speciation analysis of arsenic in edible mushrooms by high-performance liquid chromatography hyphenated to inductively coupled plasma mass spectrometry. Food Chem 2020; 327:127033. [DOI: 10.1016/j.foodchem.2020.127033] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/08/2020] [Accepted: 05/10/2020] [Indexed: 01/19/2023]
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12
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Herath I, Kumarathilaka P, Bundschuh J, Marchuk A, Rinklebe J. A fast analytical protocol for simultaneous speciation of arsenic by Ultra-High Performance Liquid Chromatography (UHPLC) hyphenated to Inductively Coupled Plasma Mass Spectrometry (ICP-MS) as a modern advancement in liquid chromatography approaches. Talanta 2020; 208:120457. [DOI: 10.1016/j.talanta.2019.120457] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 01/22/2023]
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13
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Cheng L, Yang XA, Shi MT, Zhang WB. Rapid extraction of arsenic species from traditional Chinese herbal by dual-frequency ultrasound-assisted enzymatic digestion prior to spectral analysis. J Chromatogr A 2020; 1619:460915. [PMID: 32008824 DOI: 10.1016/j.chroma.2020.460915] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/18/2020] [Accepted: 01/22/2020] [Indexed: 01/06/2023]
Abstract
Considering the huge difference of biological toxicity, it is extremely significant to recognize the exact content of arsenic species in actual samples. In this paper, a novel pretreatment technique for the efficient extraction of arsenic species from herbal samples is developed by dual-frequency ultrasound-assisted enzymatic digestion (DUED). The preservation of arsenic original form, reduction of the actual analysis time, environmental friendliness and free-interference in subsequent detection make this method over the traditional method such as wet digestion, ashing and some solvent extraction technologies. The combination of DUED and atomic fluorescence spectrometry realize the speciation analysis of arsenic in traditional Chinese medicine. The optimizations of experimental parameters have been achieved, and the potential mechanism is discussed. The experimental data showed that cellulase is suitable for the digestion of herbal matrix than α-amylase and papain. Ultrasound can significantly increase the rate of enzymatic hydrolysis of biological molecules, especially under dual-frequency ultrasound irradiation. The highest relative extraction efficiency can be obtained by combining 40 kHz ultrasonic bath (UB) with 20 kHz ultrasonic probe (UP). Two certified reference materials [CRMs, GBW(E)090066 and GBW(E)090067] and four practical herbs were used to evaluate the accuracy and practicability of the method. Inorganic arsenic, including trivalent arsenic and pentavalent arsenic, was the main species in the four herbal samples.
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Affiliation(s)
- Lei Cheng
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Xin-An Yang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
| | - Meng-Ting Shi
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Wang-Bing Zhang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
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14
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Zhong L, Ni R, Zhang L, He Z, Zhou H, Li L. Determination of total arsenic in soil by gas chromatography after pyrolysis. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Vu HA, Nguyen MH, Vu-Thi HA, Do-Hong Q, Dang XH, Nguyen TNB, Trinh HQ, Ly Bich T, Nguyen TT, Le-Van D, Tu MB, Chu DB. Speciation Analysis of Arsenic Compounds by High-Performance Liquid Chromatography in Combination with Inductively Coupled Plasma Dynamic Reaction Cell Quadrupole Mass Spectrometry: Application for Vietnamese Rice Samples. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2019; 2019:5924942. [PMID: 31183246 PMCID: PMC6512032 DOI: 10.1155/2019/5924942] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/08/2019] [Accepted: 04/16/2019] [Indexed: 05/12/2023]
Abstract
In this work, high-performance liquid chromatography in combination with inductively coupled plasma dynamic reaction cell quadrupole mass spectrometry was introduced and optimized for speciation analysis of five major arsenic species including arsenobetain (AsB), arsenite (As(III)), monomethylarsonic (MMA), dimethylarsenonic acid (DMA), and arsenate (As(V)) in rice samples. Five arsenic compounds were separated on a Hamilton PRP X100 strong anion-exchange column employed with the mobile phase that is compatible with mass spectrometry, containing ammonium carbonate, methanol, and disodium ethylenediaminetetraacetic acid. Arsenic compounds were detected online by inductively coupled plasma dynamic reaction cell quadrupole mass spectrometry utilizing oxygen as the reaction gas at a flow rate of 0.7 mL·min-1. Five selected arsenic species were baseline separated at the optimum experimental conditions. The excellent LOD and LOQ values of the developed method were achieved in the range of 0.5 to 2.9 μg·kg-1 and 1.7 to 9.6 μg·kg-1 for all species of arsenic, respectively. The ionization effect in plasma during chromatographic gradient elution was systematically investigated by using postcolumn injector. Arsenic compounds in rice samples were extracted by diluted nitric acid at elevated temperature. The extraction efficiency and the interconversion of target compounds during sample preparation were also assessed. The full validation of the developed method was performed by using certified reference material, BRC 211, from European Institute of Reference and Standard for speciation analysis. The recovery of all selected arsenic species was in the range of 70 to 135.5%. The validated method was also applied to analyze rice samples collected from some contaminated rice fields. The results showed that As(III), DMA, and As(V) were found in all rice samples. Average concentration (range) of inorganic arsenic and DMA in all rice samples were 130.3 (65.5-228.1) and 32 (8.2-133.01) μg·kg-1, respectively. However, total concentration of inorganic arsenic in most of investigated rice samples was below the maximum residual level according to US-FDA and European Union standards.
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Affiliation(s)
- Hai Anh Vu
- Faculty of Chemistry, VNU University of Science, Vietnam National University Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Vietnam
| | - Manh Ha Nguyen
- Faculty of Chemistry, VNU University of Science, Vietnam National University Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Vietnam
| | - Hong-An Vu-Thi
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hai Ba Trung, Hanoi 100000, Vietnam
| | - Quan Do-Hong
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hai Ba Trung, Hanoi 100000, Vietnam
| | - Xuan Hoang Dang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Thi Ngoc Bich Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Hong Quan Trinh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Thuy Ly Bich
- School of Environmental Science and Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, Hai Ba Trung, Hanoi 100000, Vietnam
| | - Tien-Thanh Nguyen
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, Hai Ba Trung, Hanoi 100000, Vietnam
| | - Dung Le-Van
- Department of Chemistry, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi 100000, Vietnam
| | - Minh Binh Tu
- Faculty of Chemistry, VNU University of Science, Vietnam National University Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Vietnam
| | - Dinh Binh Chu
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hai Ba Trung, Hanoi 100000, Vietnam
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16
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Yang JL, Li YJ, Yuan YH, Liang RP, Qiu JD. Target induced aggregation of Ce(III)-based coordination polymer nanoparticles for fluorimetric detection of As(III). Talanta 2018; 190:255-262. [DOI: 10.1016/j.talanta.2018.07.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/29/2018] [Accepted: 07/12/2018] [Indexed: 12/16/2022]
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17
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Enzyme-assisted extraction and liquid chromatography-inductively coupled plasma mass spectrometry for the determination of arsenic species in fish. J Chromatogr A 2018; 1573:48-58. [PMID: 30195857 DOI: 10.1016/j.chroma.2018.08.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 02/05/2023]
Abstract
A sensitive, simple and rapid method for the simultaneous determination of eleven arsenic species has been developed. A high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS) technique was used for the analysis of eleven arsenic species in less than 17 min. Different extraction solutions were explored and the recovery results using water and aqueous acidic solvents, aqueous organic solvents and enzymes showed that 40 mg protease with 0.75 mL 0.5% hydrochloric acid (v/v) as the extraction agent gave the best experimental results. Species separation with ammonium carbonate solution as the mobile phase was conducted on an anion-exchange chromatographic column using gradient elution. The column temperature was 20 °C and kinetic energy discrimination (KED) was employed to eliminate spectral interference. The use of KED mode effectively removed interference from 75ArCl. The detection limit (LD) of the method was in the range of 0.11-0.59 μg kg-1. Repeatability values obtained for spiked real fish samples were in the range of 1.1%-7.6%. Accuracy was calculated based on the analysis of spiked real fish samples at five concentration levels. Obtained recoveries were 91%-106%. The validated method was used in a pilot study to analyze real samples of fish, the organic arsenic especially AsB was the major arsenic specie present in the analyzed samples, only trace amount of inorganic arsenic were detected. The analytical method should improve the assessment of human exposure associated with arsenic intake from fish.
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Inter-laboratory validation of an inexpensive streamlined method to measure inorganic arsenic in rice grain. Anal Bioanal Chem 2018; 410:5703-5710. [PMID: 29725731 DOI: 10.1007/s00216-018-1075-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 03/13/2018] [Accepted: 04/10/2018] [Indexed: 10/17/2022]
Abstract
With the establishment by CODEX of a 200 ng/g limit of inorganic arsenic (iAs) in polished rice grain, more analyses of iAs will be necessary to ensure compliance in regulatory and trade applications, to assess quality control in commercial rice production, and to conduct research involving iAs in rice crops. Although analytical methods using high-performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) have been demonstrated for full speciation of As, this expensive and time-consuming approach is excessive when regulations are based only on iAs. We report a streamlined sample preparation and analysis of iAs in powdered rice based on heated extraction with 0.28 M HNO3 followed by hydride generation (HG) under control of acidity and other simple conditions. Analysis of iAs is then conducted using flow-injection HG and inexpensive ICP-atomic emission spectroscopy (AES) or other detection means. A key innovation compared with previous methods was to increase the acidity of the reagent solution with 4 M HCl (prior to reduction of As5+ to As3+), which minimized interferences from dimethylarsinic acid. An inter-laboratory method validation was conducted among 12 laboratories worldwide in the analysis of six shared blind duplicates and a NIST Standard Reference Material involving different types of rice and iAs levels. Also, four laboratories used the standard HPLC-ICP-MS method to analyze the samples. The results between the methods were not significantly different, and the Horwitz ratio averaged 0.52 for the new method, which meets official method validation criteria. Thus, the simpler, more versatile, and less expensive method may be used by laboratories for several purposes to accurately determine iAs in rice grain. Graphical abstract Comparison of iAs results from new and FDA methods.
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Speciation of inorganic arsenic(III) and arsenic(V) by a facile dual-cloud point extraction coupled with inductively plasma-optical emission spectrometry. Talanta 2018; 181:265-270. [DOI: 10.1016/j.talanta.2017.12.083] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 11/30/2017] [Accepted: 12/27/2017] [Indexed: 12/21/2022]
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Jung MY. Inorganic arsenic contents in infant rice powders and infant rice snacks marketed in Korea determined by a highly sensitive gas chromatography-tandem mass spectrometry following derivatization with British Anti-Lewisite. Food Sci Biotechnol 2018; 27:617-622. [PMID: 30263787 PMCID: PMC6049629 DOI: 10.1007/s10068-017-0260-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/23/2017] [Accepted: 11/09/2017] [Indexed: 11/24/2022] Open
Abstract
Toxic inorganic arsenic (iAs) has been reported to be present in high quantity in rice and rice-based products. The inorganic arsenic contents in infant foods (n = 59) of ready-to-cook infant rice powders and infant rice snacks marketed in Korea were determined by a highly sensitive gas chromatography-tandem mass spectrometry (GC-MS/MS). The mean iAs contents in the infant rice powder and infant rice snacks were 65.6 and 54.0 μg/kg, respectively. The percentages of rice powders and rice snack containing iAs over the maximum level (100 μg/kg) set by EU for the infant foods were found to be 21, and 6%, respectively. This result clearly suggested that regulation regarding the maximum limit of iAs levels for the baby rice products is urgently needed to be set in Korea. This represents the first report on the iAs levels in ready-to-cook infant rice powder products and infant snacks marketed in Korea.
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Affiliation(s)
- Mun Yhung Jung
- Department of Food and Biotechnology, Graduate School, Woosuk University, Samnye-Eup, Wanju-Gun, Jeonbuk Province 565-701 Republic of Korea
- Agricultural and Food Product Safety Analysis Center, Woosuk University, Wanju-Gun, Republic of Korea
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Electrochemical assay for As (III) by combination of highly thiol-rich trithiocyanuric acid and conductive reduced graphene oxide nanocomposites. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.02.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Jung MY, Kang JH, Jung HJ, Ma SY. Inorganic arsenic contents in ready-to-eat rice products and various Korean rice determined by a highly sensitive gas chromatography-tandem mass spectrometry. Food Chem 2017; 240:1179-1183. [PMID: 28946240 DOI: 10.1016/j.foodchem.2017.08.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 08/03/2017] [Accepted: 08/15/2017] [Indexed: 02/01/2023]
Abstract
Rice and rice products have been reported to contain high contents of toxic inorganic arsenic (iAs). The inorganic arsenic contents in microwavable ready-to-eat rice products (n=30) and different types of Korean rice (n=102) were determined by a gas chromatography-tandem mass spectrometry (GC-MS/MS). The method showed low limit of detection (0.015pg), high intra- and inter-day repeatability (<7.3%, RSD), and recovery rates (90-117%). The mean iAs content in the ready-to-eat rice products was 59μgkg-1 (dry weight basis). The mean iAs contents in polished white, brown, black, and waxy rice were 65, 109, 91, and 66μgkg-1, respectively. The percentages of ready-to-eat rice products, white, brown, black, and waxy rice containing iAs over the maximum level (100μgkg-1) set by EU for the infant foods were 17, 4, 70, 36 and 0%, respectively.
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Affiliation(s)
- Mun Yhung Jung
- Department of Food and Biotechnology, Graduate School, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea; Agricultural and Food Product Safety Analysis Center, Woosuk University, Republic of Korea.
| | - Ju Hee Kang
- Department of Food and Biotechnology, Graduate School, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea
| | - Hyun Jeong Jung
- Department of Food Science and Biotechnology, College of Food Science, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea
| | - Sang Yong Ma
- Department of Food Science and Biotechnology, College of Food Science, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea; Agricultural and Food Product Safety Analysis Center, Woosuk University, Republic of Korea
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The high efficient separation of divinylbenzene and ethylvinylbenzene isomers using high performance liquid chromatography with Fe-based MILs packed columns. J Chromatogr A 2017; 1510:25-32. [DOI: 10.1016/j.chroma.2017.06.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/28/2017] [Accepted: 06/12/2017] [Indexed: 11/20/2022]
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Bralatei E, Nekrosiute K, Ronan J, Raab A, McGovern E, Stengel DB, Krupp EM, Feldmann J. A field deployable method for a rapid screening analysis of inorganic arsenic in seaweed. Mikrochim Acta 2017; 184:1701-1709. [PMID: 28572689 PMCID: PMC5429896 DOI: 10.1007/s00604-017-2151-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 02/22/2017] [Indexed: 11/24/2022]
Abstract
Inorganic arsenic (iAs) in 13 store-bought edible seaweed samples and 34 dried kelp (Laminaria digitata) samples was determined by a newly developed, field-deployable method (FDM) with the aid of a field test kit for arsenic in water. Results from the FDM were compared to results from speciation analysis achieved by using high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP-MS). The FDM consisted of a simple extraction method using diluted HNO3 to quantitatively extract iAs without decomposing the organoarsenicals to iAs followed by the selective volatilisation of iAs as arsine (AsH3) and subsequent chemo-trapping on a filter paper soaked in mercury bromide (HgBr2) solution. Method optimization with a sub-set of samples showed 80-94% iAs recovery with the FDM with no matrix effect from organo-arsenic species in the form of dimethylarsinic acid (DMA) on the iAs concentration. The method displayed good reproducibility with an average error of ±19% and validation by HPLC-ICP-MS showed that the results from the FDM were comparable (slope = 1.03, R2 = 0.70) to those from speciation analysis with no bias. The FDM can be conducted within an hour and the observed limit of quantification was around 0.05 mg kg-1 (dry weight). This method is well suited for on-site monitoring of iAs in seaweed before it is harvested and can thus be recommended for use as a screening method for iAs in seaweed. Graphical abstractScreening seaweed for their inorganic arsenic concentration within one hour without bias has been made possible in the field by using a field deployable arsenic kit. Its accuracy and precision was compared to HPLC-ICPMS.
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Affiliation(s)
- Edi Bralatei
- TESLA (Trace Element Speciation Laboratory), Department of Chemistry, University of Aberdeen, Aberdeen, Scotland AB24 3UE UK
| | - Karolina Nekrosiute
- TESLA (Trace Element Speciation Laboratory), Department of Chemistry, University of Aberdeen, Aberdeen, Scotland AB24 3UE UK
| | - Jenny Ronan
- Marine Institute, Rinville, Oranmore, Co. Galway Ireland
| | - Andrea Raab
- TESLA (Trace Element Speciation Laboratory), Department of Chemistry, University of Aberdeen, Aberdeen, Scotland AB24 3UE UK
| | - Evin McGovern
- Marine Institute, Rinville, Oranmore, Co. Galway Ireland
| | - Dagmar B. Stengel
- Botany and Plant Science, School of Natural Sciences, Ryan Institute for Environmental, Marine and Energy Research, National University of Ireland Galway, Galway, Ireland
| | - Eva M. Krupp
- TESLA (Trace Element Speciation Laboratory), Department of Chemistry, University of Aberdeen, Aberdeen, Scotland AB24 3UE UK
| | - Joerg Feldmann
- TESLA (Trace Element Speciation Laboratory), Department of Chemistry, University of Aberdeen, Aberdeen, Scotland AB24 3UE UK
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