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Qiu Z, Wei C, Kang L, Zhou L, Lai C, Li X, Yan B, Xu J, Wang S, Huang L. Sensitive quantitation of ultra-trace toxic aconitines in complex matrices by perfusion nano-electrospray ionization mass spectrometry combined with gas-liquid microextraction. Talanta 2024; 269:125402. [PMID: 37979510 DOI: 10.1016/j.talanta.2023.125402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023]
Abstract
The accurate analysis of ultra-trace (e.g. <10-4 ng/mL) substances in complex matrices is a burdensome but vital problem in pharmaceutical analysis, with important implications for precise quality control of drugs, discovery of innovative medicines and elucidation of pharmacological mechanisms. Herein, an innovative constant-flow perfusion nano-electrospray ionization (PnESI) technique was developed firstly features significant quantitative advantages in high-sensitivity ambient MS analysis of complex matrix sample. More importantly, double-labeled addition enrichment quantitation strategies of gas-liquid microextraction (GLME) were proposed for the first time, allowing highly selective extraction and enrichment of specific target analytes in a green and ultra-efficient (>1000-fold) manner. Using complex processed Aconitum herbs as example, PnESI-MS directly enabled the qualitative and absolute quantitative analysis of the processed Aconitum extracts and characterized the target toxic diester alkaloids with high sensitivity, high stability, wide linearity range, and strong resistance to matrix interference. Further, GLME device was applied to obtain the highly specific enrichment of the target diester alkaloids more than 1000-fold, and accurate absolute quantitation of trace aconitine, mesaconitine, and hypaconitine in the extracts of Heishunpian, Zhichuanwu and Zhicaowu was accomplished (e.g., 0.098 pg/mL and 0.143 pg/mL), with the quantitation results well below the LODs of aconitines from any analytical instruments available. This study built a systematic strategy for accurate quantitation of ultra-trace substances in complex matrix sample and expected to provide a technological revolution in many fields of pharmaceutical research.
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Affiliation(s)
- Zidong Qiu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Chaofa Wei
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Liping Kang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Li Zhou
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Changjiangsheng Lai
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Xiang Li
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Binbin Yan
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jiaquan Xu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, College of Chemistry, Biology and Material Sciences, East China Institute of Technology, Nanchang, 330013, China
| | - Shuanglong Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, College of Chemistry, Biology and Material Sciences, East China Institute of Technology, Nanchang, 330013, China.
| | - Luqi Huang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Ubonyaem T, Bureekul S, Charoenpong C, Luadnakrob P, Sompongchaiyakul P. Preindustrial levels and temporal enrichment trends of mercury in sediment cores from the Gulf of Thailand. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:4243-4256. [PMID: 36715844 DOI: 10.1007/s10653-022-01465-9] [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: 09/28/2022] [Accepted: 12/19/2022] [Indexed: 06/18/2023]
Abstract
Four sediment cores in the middle of Gulf of Thailand (GOT) and one core close to Bang Pakong River mouth were examined for total mercury (T-Hg) using direct thermal decomposition coupled with the atomic absorption spectrometry (DTD-AAS) method and acid digestion (acid-CVAAS) method, and sediment chronologies using 210Pb dating. T-Hg in the river mouth core ranged 44.49-52.76 µg/kg and higher than the cores from the middle of GOT (18.26-36.68 µg/kg). The age span obtained from the cores dated back to the 1940s with the sediment accumulation rates of 0.15-0.76 cm/year. The preindustrial levels of T-Hg showed an initial slow increase followed by a rapid elevation since the 1960s which marked the start of the industrialized period in the country. To this end, we posit that T-Hg in the GOT sediment can be attributed to not only land-based sources but also offshore activities including petroleum exploration and frequent accidental oil spills.
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Affiliation(s)
- Tanakorn Ubonyaem
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sujaree Bureekul
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chawalit Charoenpong
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pontipa Luadnakrob
- Southeast Asian Fisheries Development Center, Training Department, Samut Prakan, 10290, Thailand
| | - Penjai Sompongchaiyakul
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
- Research Program on Remediation Technologies for Petroleum Contamination, Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Bangkok, Thailand.
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Manivannan R, Lee HS, Son YA. Simple easy to make xanthene based optical probe for solid and liquid state Hg 2+ ion detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120413. [PMID: 34597871 DOI: 10.1016/j.saa.2021.120413] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/13/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
An easy to make xanthene based optical probe synthesized, precise recognition towards mercury ion been achieved by the probe RP and can detect Hg2+ effectively in both for solid and liquid state with a vivid color change. The other tested ion showed no interference, visual and instrumental methods confirms the probe selectivity. Stoichiometry (1:1) confirmed by job's plot, plausible binding of Hg2+ ion with the probe confirmed by mass and NMR studies. Test strip prepared for the prompt onsite detection in aqueous medium with outstanding color variation in daylight.
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Affiliation(s)
- Ramalingam Manivannan
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Heon Seung Lee
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Young-A Son
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.
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Preconcentration and speciation analysis of mercury: 3D printed metal scavenger-based solid-phase extraction followed by analysis with inductively coupled plasma mass spectrometry. Talanta 2021; 240:123163. [PMID: 34972065 DOI: 10.1016/j.talanta.2021.123163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 11/20/2022]
Abstract
A selective method for preconcentration and determination of methylmercury (MeHg) and inorganic mercury (iHg) in natural water samples at the ng L-1 level has been developed. The method involves adsorption of Hg species into a 3D printed metal scavenger and sequential elution with acidic thiourea solutions before ICP-MS determination. Experimental parameters affecting the preconcentration of MeHg and iHg such as the sample matrix, effect of the flow rate on adsorption, eluent composition, and elution mode have been studied in detail. The obtained method detection limits, considering the preconcentration factors of 42 and 93, were found to be 0.05 ng L-1 and 0.08 ng L-1 for MeHg and iHg, respectively. The accuracy of the method was assessed with a certified groundwater reference material ERM-CA615 (certified total iHg concentration 37 ± 4 ng L-1). The determined MeHg concentration was below MDL while iHg concentration was determined to be 41.2 ± 0.5 ng L-1. Both MeHg and iHg were also spiked to natural water samples at 5 ng L-1 concentration and favorable spiking recoveries of 88-97% were obtained. The speciation procedure was successfully applied to two lake water samples where MeHg and iHg concentrations ranged from 0.18 to 0.24 ng L-1 and 0.50-0.62 ng L-1, respectively. The results obtained demonstrate that the developed 3D printed metal scavenger-based method for preconcentration and speciation of Hg is simple and sensitive for the determination of Hg species at an ultra-trace level in water samples.
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Hwang JH, Fox D, Stanberry J, Anagnostopoulos V, Zhai L, Lee WH. Direct Mercury Detection in Landfill Leachate Using a Novel AuNP-Biopolymer Carbon Screen-Printed Electrode Sensor. MICROMACHINES 2021; 12:649. [PMID: 34205934 PMCID: PMC8229311 DOI: 10.3390/mi12060649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/26/2021] [Accepted: 05/30/2021] [Indexed: 01/06/2023]
Abstract
A novel Au nanoparticle (AuNP)-biopolymer coated carbon screen-printed electrode (SPE) sensor was developed through the co-electrodeposition of Au and chitosan for mercury (Hg) ion detection. This new sensor showed successful Hg2+ detection in landfill leachate using square wave anodic stripping voltammetry (SWASV) with an optimized condition: a deposition potential of -0.6 V, deposition time of 200 s, amplitude of 25 mV, frequency of 60 Hz, and square wave step voltage of 4 mV. A noticeable peak was observed at +0.58 V associated with the stripping current of the Hg ion. The sensor exhibited a good sensitivity of ~0.09 μA/μg (~0.02 μA/nM) and a linear response over the concentration range of 10 to 100 ppb (50-500 nM). The limit of detection (LOD) was 1.69 ppb, which is significantly lower than the safety limit defined by the United States Environmental Protection Agency (USEPA). The sensor had an excellent selective response to Hg2+ in landfill leachate against other interfering cations (e.g., Zn2+, Pb2+, Cd2+, and Cu2+). Fifteen successive measurements with a stable peak current and a lower relative standard deviation (RSD = 5.1%) were recorded continuously using the AuNP-biopolymer-coated carbon SPE sensor, which showed excellent stability, sensitivity and reproducibility and consistent performance in detecting the Hg2+ ion. It also exhibited a good reliability and performance in measuring heavy metals in landfill leachate.
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Affiliation(s)
- Jae-Hoon Hwang
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
| | - David Fox
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA; (D.F.); (L.Z.)
| | - Jordan Stanberry
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA; (J.S.); (V.A.)
| | | | - Lei Zhai
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA; (D.F.); (L.Z.)
| | - Woo Hyoung Lee
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
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Photoactive Titanium Dioxide Films with Embedded Gold Nanoparticles for Quantitative Determination of Mercury Traces in Humic Matter-Containing Freshwaters. NANOMATERIALS 2021; 11:nano11020512. [PMID: 33670486 PMCID: PMC7921970 DOI: 10.3390/nano11020512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 11/16/2022]
Abstract
Mercury detection in humic matter-containing natural waters is often associated with environmental harmful substances for sample preparation. Herein we report an approach based on photoactive titanium dioxide films with embedded gold nanoparticles (AuNP@TiO2 dipstick) for chemical-free sample preparation and mercury preconcentration. For this purpose, AuNPs are immobilized onto a silicon wafer and further covered with a thin photoactive titanium dioxide layer. The AuNPs allow the preconcentration of Hg traces via amalgamation, while TiO2 acts as a protective layer and, at the same time, as a photocatalyst for UV-C radiation-based sample pretreatment. Humic matter, often present in natural waters, forms stabile complexes with Hg and so hinders its preconcentration prior to detection, causing a minor recovery. This problem is solved here by irradiation during Hg preconcentration onto the photoactive dipstick, resulting in a limit of detection as low as 0.137 ng L-1 using atomic fluorescence spectrometry (AFS). A 5 min preconcentration step is sufficient to obtain successful recovery of Hg traces from waters with up to 10 mg L-1 DOC. The feasibility of the approach was demonstrated by the determination of Hg traces in Danube river water. The results show no significant differences in comparison with standard cold vapor-atomic fluorescence spectrometry (CV-AFS) measurements of the same sample. Hence, this new AuNP@TiO2 dipstick provides a single-step sample preparation and preconcentration approach that combines sustainability with high analytical sensitivity and accuracy.
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Kulomäki S, Perämäki S, Väisänen A. Addition of thiourea and hydrochloric acid: Accurate nanogram level analysis of mercury in humic-rich natural waters by inductively coupled plasma mass spectrometry. Talanta 2020; 218:121125. [PMID: 32797882 DOI: 10.1016/j.talanta.2020.121125] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 01/16/2023]
Abstract
An analytical method was developed for the direct determination of total mercury in natural waters at low ng L-1 level by inductively coupled plasma mass spectrometry (ICP-MS). The presented method overcomes previously observed problems relating to poor spike recoveries by adding 0.12% thiourea in addition to 3% HCl to all samples and standards. The sample preparation is fast and easy to perform by the developed method since it requires only the addition of HCl and thiourea to the water samples. A very low instrument detection limit (0.4 ng L-1) was obtained without time-consuming preconcentration procedures. The accuracy and precision of the developed method were found excellent by the analysis of a certified groundwater reference material (ERM-CA615). The determined Hg concentration of 38.6 ± 0.5 ng L-1 was within the 95% confidence interval of the certified concentration of 37 ± 4 ng L-1. The analysis of natural water samples showed that total mercury levels ranged from concentrations lower than the method detection limit (2.0 ng L-1) to 10.9 ng L-1. Excellent recoveries of 96-108% for inorganic mercury (iHg) and 102-110% for methylmercury (MeHg) were obtained for spiked humic-rich natural water samples. To our knowledge, the developed method is the first ICP-MS method for the analysis of humic-rich natural water samples at ng L-1 concentrations without the need for hyphenated techniques or preconcentration procedures.
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Affiliation(s)
- Suvi Kulomäki
- Department of Chemistry, Renewable Natural Resources and Chemistry of Living Environment, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland.
| | - Siiri Perämäki
- Department of Chemistry, Renewable Natural Resources and Chemistry of Living Environment, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Ari Väisänen
- Department of Chemistry, Renewable Natural Resources and Chemistry of Living Environment, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
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8
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Universal preparation of cellulose-based colorimetric sensor for heavy metal ion detection. Carbohydr Polym 2020; 236:116037. [DOI: 10.1016/j.carbpol.2020.116037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/03/2020] [Accepted: 02/18/2020] [Indexed: 11/17/2022]
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9
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Label-free fluorescence “turn-on” strategy for mercury (II) detection based on the T-Hg2+-T configuration and the DNA-sensitized luminescence of terbium (III). Anal Chim Acta 2020; 1099:136-144. [DOI: 10.1016/j.aca.2019.11.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/23/2019] [Accepted: 11/23/2019] [Indexed: 01/24/2023]
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Abdelhamid HN, Wu HF. A New Binary Matrix for Specific Detection of Mercury(II) Using Matrix-Assisted Laser Desorption Ionization Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2617-2622. [PMID: 31659719 DOI: 10.1007/s13361-019-02324-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/29/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
The development of simple, low-cost, and specific detection method for mercury (Hg(II)) ions in aqueous media using matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) is a challenge due to matrix interferences and acidity that destroy weak interactions. Herein, a new binary matrix consists of mefenamic acid, and thymine (T) is applied for simple and specific detection of Hg(II) in aqueous solution and blood sample. Mass spectra show metal-to-ligand ratio of 1:2 (Hg(II):T) in which Hg(II) ions are bound to two T molecules and two water molecules, i.e., [Hg(T)2(H2O)2]. The method is simple and fast, and requires cheap reagents. In addition, the spectra show extremely specific signals for Hg(II) ions and insignificant signals in case of other competing metal ions. The concept of our protocol can be applied for other metals. The new matrix may be used for the analysis of small molecules with minimal interferences peaks.
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Affiliation(s)
- Hani Nasser Abdelhamid
- Department of Chemistry, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, 80424, Taiwan.
- Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, 80424, Taiwan.
- Advanced Multifunctional Materials Laboratory, Department of Chemistry, Assiut University, Assiut, 71515, Egypt.
| | - Hui-Fen Wu
- Department of Chemistry, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, 80424, Taiwan.
- Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, 80424, Taiwan.
- Advanced Multifunctional Materials Laboratory, Department of Chemistry, Assiut University, Assiut, 71515, Egypt.
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, 80424, Taiwan.
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Senila M, Cadar O, Senila L, Hoaghia A, Miu I. Mercury Determination in Natural Zeolites by Thermal Decomposition Atomic Absorption Spectrometry: Method Validation in Compliance with Requirements for Use as Dietary Supplements. Molecules 2019; 24:molecules24224023. [PMID: 31698864 PMCID: PMC6891468 DOI: 10.3390/molecules24224023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 12/04/2022] Open
Abstract
Natural zeolites are hydrated aluminosilicate minerals that, due to their remarkable physical-chemical properties of being molecular sieves and cation exchangers, have applications in different areas such as environmental protection, catalysis, animal feed, and dietary supplements. Since natural zeolites may contain traces of undesirable compounds such as toxic metals, the accurate quantification of these elements is necessary. In this study, a direct method for Hg determination in zeolite samples based on the thermal desorption atomic absorption spectrometry (TD-AAS) technique is fully validated, taking into account the legislative requirements in the field. The chosen quantification limit was 0.9 µg kg−1, which is satisfactory for intended use. Trueness was evaluated by recovery rate using certified reference materials containing mercury, with satisfactory results. Other figures of merit, such as repeatability and measurement uncertainty, also fulfill the legislative requirements related to the analysis of dietary supplements. This paper presents, for the first time, a fully validated method for mercury determination in zeolite samples, and the obtained results reveal that the method can be applied successfully for the intended purpose.
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Affiliation(s)
- Marin Senila
- National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (O.C.); (L.S.); (A.H.)
- Correspondence: ; Tel.: +40-264-420-590
| | - Oana Cadar
- National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (O.C.); (L.S.); (A.H.)
| | - Lacrimioara Senila
- National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (O.C.); (L.S.); (A.H.)
| | - Alexandra Hoaghia
- National Institute for Research and Development of Optoelectronics Bucharest INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (O.C.); (L.S.); (A.H.)
| | - Ion Miu
- SC UTCHIM SRL, 12 Buda Street, 240127 Ramnicu Valcea, Romania;
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Organoclay-film modified electrode for the detection of ultra-traces of Hg2+ ions: Approach of one factor at a time by an experimental design. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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13
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de la Calle I, Páez-Cabaleiro J, Lavilla I, Bendicho C. One-pot synthesis of a magnetic nanocomposite based on ultrasound-assisted co-precipitation for enrichment of Hg(II) prior to detection by a direct mercury analyzer. Talanta 2019; 199:449-456. [DOI: 10.1016/j.talanta.2019.02.085] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/20/2019] [Accepted: 02/26/2019] [Indexed: 02/07/2023]
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14
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Schlathauer M, Friedland J, Lindén M, Leopold K. Sustainable and reagent-free mercury trace determination in natural waters using nanogold dipsticks. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Velempini T, Pillay K, Mbianda XY, Arotiba OA. Carboxymethyl cellulose thiol-imprinted polymers: Synthesis, characterization and selective Hg(II) adsorption. J Environ Sci (China) 2019; 79:280-296. [PMID: 30784452 DOI: 10.1016/j.jes.2018.11.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 11/17/2018] [Accepted: 11/29/2018] [Indexed: 05/19/2023]
Abstract
Sulfur containing ion imprinted polymers (S-IIPs) were applied for the uptake of Hg(II) from aqueous solution. Cysteamine which was used as the ligand for Hg(II) complexation, was grafted along the epichlorohydrin crosslinked carboxylated carboxymethyl cellulose polymer chain through an amide reaction. The adsorption ability of S-IIPs towards Hg(II) was investigated by kinetic and isotherm models, which, corresponding, showed that the adsorption process followed a pseudo-second-order, fitted well with the Langmuir isotherm with a maximum adsorption capacity of 80 mg/g. Moreover, thermodynamic studies indicated an endothermic and spontaneous reaction with the tendency of an enhanced randomness at the surface of the S-IIPs with temperature increases. S-IIPs indicated a high degree of selectivity towards Hg(II) in the presence of Cu2+, Zn2+, Co2+, Pb2+ and Cd2+. Furthermore, the efficiency of S-IIPs was also evaluated against real samples showing 86.78%, 91.88%, and 99.10% recovery for Hg(II) wastewater, ground water and tap water, respectively. In this study, the adsorbent was successfully regenerated for five cycles, which allows for their reuse without significant loss of initial adsorption capability.
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Affiliation(s)
- Tarisai Velempini
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa
| | - Kriveshini Pillay
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Centre for Nanomaterials, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Department of Science and Technology/National Research Foundation Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg 2050, South Africa.
| | - Xavier Y Mbianda
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Centre for Nanomaterials, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Department of Science and Technology/National Research Foundation Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Omotayo A Arotiba
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Centre for Nanomaterials, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa
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Tavares DS, Vale C, Lopes CB, Trindade T, Pereira E. Reliable quantification of mercury in natural waters using surface modified magnetite nanoparticles. CHEMOSPHERE 2019; 220:565-573. [PMID: 30597364 DOI: 10.1016/j.chemosphere.2018.12.149] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 12/03/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
Reliable determination of mercury (Hg) in natural waters is a major analytical challenge due to its low concentration and to the risk of Hg losses or contamination during sampling, storage and pre-treatment of samples. The present work proposes a simple, efficient, sensitive and easy-handling methodology for extraction, pre-concentration and quantification of total dissolved mercury in natural waters, using iron oxide nanoparticles (NPs) coated with silica shells functionalized with dithiocarbamate groups (Fe3O4@SiO2SiDTC). Ten mg L-1 of these NPs were sufficient to remove 83-97% of 500 to 10 ng L-1 of Hg in ultra-pure water and artificial seawater, used as model Hg solutions, within 24 h. Mercury sorbed to the NPs was then measured directly by thermal decomposition atomic absorption spectrometry with gold amalgamation. The detection limit of approximately 1.8 ng L-1 is lower than the values reported in dispersive solid phase extraction for other magnetic sorbents. As a proof-of-concept, the proposed methodology was successfully tested in real samples of fresh and saline waters and more than 91% of Hg was recovered. With this methodology the extraction and pre-concentration steps may be carried out in situ decreasing the risk of Hg losses or contamination during sampling, storage and pre-treatment of water samples.
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Affiliation(s)
- Daniela S Tavares
- Department of Chemistry and CESAM, University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal; Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal
| | - Carlos Vale
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Cláudia B Lopes
- Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Tito Trindade
- Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal
| | - Eduarda Pereira
- Department of Chemistry and CESAM, University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal.
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17
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Yu X, Liu C, Guo Y, Deng T. Speciation Analysis of Trace Arsenic, Mercury, Selenium and Antimony in Environmental and Biological Samples Based on Hyphenated Techniques. Molecules 2019; 24:E926. [PMID: 30866421 PMCID: PMC6429259 DOI: 10.3390/molecules24050926] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/22/2019] [Accepted: 02/28/2019] [Indexed: 12/20/2022] Open
Abstract
In order to obtain a well understanding of the toxicity and ecological effects of trace elements in the environment, it is necessary to determine not only the total amount, but also their existing species. Speciation analysis has become increasingly important in making risk assessments of toxic elements since the toxicity and bioavailability strongly depend on their chemical forms. Effective separation of different species in combination with highly sensitive detectors to quantify these particular species is indispensable to meet this requirement. In this paper, we present the recent progresses on the speciation analysis of trace arsenic, mercury, selenium and antimony in environmental and biological samples with an emphasis on the separation and detection techniques, especially the recent applications of high performance liquid chromatography (HPLC) hyphenated to atomic spectrometry or mass spectrometry.
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Affiliation(s)
- Xiaoping Yu
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Chenglong Liu
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Yafei Guo
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Tianlong Deng
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, China.
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18
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Shi W, Liu J, Lo P, Ng DKP. Selective Detection of Hg
2+
Ions with Boron Dipyrromethene‐Based Fluorescent Probes Appended with a Bis(1,2,3‐triazole)amino Receptor. Chem Asian J 2019; 14:1059-1065. [DOI: 10.1002/asia.201900166] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/16/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Wen‐Jing Shi
- School of Chemistry and Chemical EngineeringGuangzhou University Guangzhou 510006 China
- Department of ChemistryThe Chinese University of Hong Kong Shatin N.T. Hong Kong China
| | - Jian‐Yong Liu
- Department of ChemistryThe Chinese University of Hong Kong Shatin N.T. Hong Kong China
| | - Pui‐Chi Lo
- Department of Biomedical SciencesCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong China
| | - Dennis K. P. Ng
- Department of ChemistryThe Chinese University of Hong Kong Shatin N.T. Hong Kong China
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19
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Cheng Z, Du F, Sun L, Jiang L, Ruan G, Li J. Nitrogen-Doped Carbon Quantum Dots as a “Turn-Off” Fluorescent Probes for Highly Selective and Sensitive Detection of Mercury(II) Ions. ChemistrySelect 2019. [DOI: 10.1002/slct.201803716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhenfang Cheng
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials; College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004 China
| | - Fuyou Du
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials; College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004 China
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education; School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; 411201 China
| | - Lingshun Sun
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials; College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004 China
| | - Liping Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials; College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004 China
| | - Guihua Ruan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials; College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004 China
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials; College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004 China
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20
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Berlina AN, Zherdev AV, Dzantiev BB. Progress in rapid optical assays for heavy metal ions based on the use of nanoparticles and receptor molecules. Mikrochim Acta 2019; 186:172. [PMID: 30767144 DOI: 10.1007/s00604-018-3168-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 12/09/2018] [Indexed: 02/06/2023]
Abstract
This review (with 230 refs.) covers recent progress in rapid optical assays for heavy metals (primarily lead and mercury as the most relevant) based on the use of nanoparticles and receptor molecules. An introduction surveys the importance, regulatory demands (such as maximum permissible concentrations) and potential and limitations of various existing methods. This is followed by a general discussion on the use of nanoparticles in optical assays of heavy metals (including properties, basic mechanisms of signal generation). The next sections cover methods for the functionalization of nanoparticles with (a) sulfur-containing compounds (used for modification of nanoparticles or added to the reaction medium), (b) nitrogen-containing compounds (such as amino acids, polypeptides, and heterocyclic molecules), and (c) oxygen-containing species (such as hydroxy and carbonyl compounds). This is continued by a specific description of specific assays based on the use of aptamers as receptors, on the use of deoxyribozymes as synthetic reaction catalysts, of G-quadruplex aptamers, of aptamers in logic gate-type of assays of linear (unstructured) aptamers ("hairpins"), and on the use of aptamers in lateral flow assays. A next section covers assays based on the employment of antibodies as receptors (used in the immunoassay development). The properties of various nanoparticles and their applicability in optical assays are also discussed in some detail. Final sections discuss the selectivity of assays, potential interferences by other cations, methods for their elimination, and also matrix effects and approaches for sample pretreatment. A concluding section discusses current challenges and future trends. Analysis based on enzyme inhibition assay is not treated here but enzyme-like action of some receptor molecules such as DNAzymes is discussed. Graphical abstract Schematic presentation of main principles of application of various nanoparticles with receptor molecules (S-, N-, O-containing, heterocyclic compounds, proteins, antibody, aptamers) for heavy metals ions detection. The included methods cover optical assays with description of mechanisms of interactions and signal generation.
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Affiliation(s)
- Anna N Berlina
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, Moscow, 119071, Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, Moscow, 119071, Russia
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, Moscow, 119071, Russia.
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21
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Rao PG, Saritha B, Siva Rao T. Colorimetric and turn-on Fluorescence Chemosensor for Hg 2+ Ion Detection in Aqueous Media. J Fluoresc 2019; 29:353-360. [PMID: 30613850 DOI: 10.1007/s10895-018-02342-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/26/2018] [Indexed: 12/28/2022]
Abstract
A new rhodamine 6G based fluorescent and colorimetric chemosensor, containing N-methyl imidazole nucleus, for the selective detection of Hg2+ ion was designed and synthesized. The results of UV-Vis and fluorescence spectral study indicated that the receptor is selective and sensitive towards Hg2+ with no noticeable interference with other competitive metal ions. The addition of Hg2+ to the receptor induced a rapid color change to pink from colorless and the turn-on fluorescence response toward Hg2+ among different cations was studied. The stoichiometric ratio of 1:1 between the receptor and Hg2+ was supported by Job's plot. The color change and turn-on fluorescence response upon addition of Hg2+ ion was ascribed by the spirolactam ring-opening mechanism. The probable mode of binding between the receptor and Hg2+ was confirmed by 1H NMR and Mass spectral study. For the practical application, its electrospun nanofiber test strips successfully applied to recognize Hg2+ ion in aqueous media. Graphical Abstract Schematic representation of Hg2+ detection by rhodamine based sensor.
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Affiliation(s)
- Pydisetti Gurunadha Rao
- Department of Inorganic & Analytical Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Birudaraju Saritha
- Department of Inorganic & Analytical Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | - T Siva Rao
- Department of Inorganic & Analytical Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India.
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22
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Mesoporous Silica-gold Films for Straightforward, Highly Reproducible Monitoring of Mercury Traces in Water. NANOMATERIALS 2018; 9:nano9010035. [PMID: 30597846 PMCID: PMC6359669 DOI: 10.3390/nano9010035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/14/2018] [Accepted: 12/20/2018] [Indexed: 11/16/2022]
Abstract
Trace-level detection of mercury in waters is connected with several complications including complex multistep analysis routines, applying additional, harmful reagents increasing the risk of contamination, and the need for expensive analysis equipment. Here, we present a straightforward reagent-free approach for mercury trace determination using a novel thin film sampling stick for passive sampling based on gold nanoparticles. The nanoparticles supported on a silicon wafer and further covered with a thin layer of mesoporous silica. The mesoporous silica layer is acting as a protection layer preventing gold desorption upon exposure to water. The gold nanoparticles are created by thermal treatment of a homogenous gold layer on silicon wafer prepared by vacuum evaporation. This gold-covered substrate is subsequently covered by a layer of mesoporous silica through dip-coating. Dissolved mercury ions are extracted from a water sample, e.g., river water, by incorporation into the gold matrix in a diffusion-controlled manner. Thus, the amount of mercury accumulated during sampling depends on the mercury concentration of the water sample, the accumulation time, as well as the size of the substrate. Therefore, the experimental conditions can be chosen to fit any given mercury concentration level without loss of sensitivity. Determination of the mercury amount collected on the stick is performed after thermal desorption of mercury in the gas phase using atomic fluorescence spectrometry. Furthermore, the substrates can be re-used several tens of times without any loss of performance, and the batch-to-batch variations are minimal. Therefore, the nanogold-mesoporous silica sampling substrates allow for highly sensitive, simple, and reagent-free determination of mercury trace concentrations in waters, which should also be applicable for on-site analysis. Successful validation of the method was shown by measurement of mercury concentration in the certified reference material ORMS-5, a river water.
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23
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Cavoura O, Davidson CM, Katsiris N, Keenan HE. Optimization and application of a low cost, colorimetric screening method for mercury in marine sediment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:236. [PMID: 29564558 DOI: 10.1007/s10661-018-6612-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 03/09/2018] [Indexed: 06/08/2023]
Abstract
A rapid, inexpensive, colorimetric screening method for mercury (Hg) has been optimized to provide a semi-quantitative measurement of Hg concentration in marine sediment within the range 0.038 to 1.5 mg kg-1 encompassing the interim sediment quality guideline (ISQG) value of 0.13 mg kg-1 (CCME 1999) and the probable effects level (PEL) of 0.7 mg kg-1 for Hg in marine sediment (CCME 1999). Neither salinity (up to 41 practical salinity units (psu)) nor sediment organic matter (ΟΜ) content (up to 10%) affected the performance of the method. Accurate results were obtained for spike recovery experiments and analysis of certified reference material (CRM) BCR 580 Estuarine Sediment. The method was applied to sediment samples from Elefsina Bay, Greece. Screening results indicated Hg contamination in the bay, with concentrations exceeding the PEL value. Findings were confirmed by quantitative analysis of the samples by cold vapor atomic absorption spectrometry (CV-AAS), where results in the range 1.4-2.96 mg kg-1 were determined.
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Affiliation(s)
- Olga Cavoura
- Department of Sanitary Engineering and Environmental Health, National School of Public Health, Athens, Greece.
- Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, UK.
| | - Christine M Davidson
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, UK
| | - Nicholas Katsiris
- Department of Sanitary Engineering and Environmental Health, National School of Public Health, Athens, Greece
| | - Helen E Keenan
- Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, UK
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24
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Li MK, Hu LY, Niu CG, Huang DW, Zeng GM. A fluorescent DNA based probe for Hg(II) based on thymine-Hg(II)-thymine interaction and enrichment via magnetized graphene oxide. Mikrochim Acta 2018; 185:207. [DOI: 10.1007/s00604-018-2689-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/18/2018] [Indexed: 12/27/2022]
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25
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Carbon nanotubes magnetic hybrid nanocomposites for a rapid and selective preconcentration and clean-up of mercury species in water samples. Talanta 2018; 179:442-447. [DOI: 10.1016/j.talanta.2017.11.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/07/2022]
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26
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Li Y, Chen Y, Yu H, Tian L, Wang Z. Portable and smart devices for monitoring heavy metal ions integrated with nanomaterials. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.11.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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27
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Functionalized fluorescent nanomaterials for sensing pollutants in the environment: A critical review. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.10.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Ordoñez S, Flores MU, Patiño F, Reyes IA, Islas H, Reyes M, Méndez E, Palacios EG. Kinetic Analysis of the Decomposition Reaction of the Mercury Jarosite in NaOH Medium. INT J CHEM KINET 2017. [DOI: 10.1002/kin.21116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sayra Ordoñez
- Área Académica de Ciencias de la Tierra y Materiales; Universidad Autónoma del Estado de Hidalgo; 42184 Hidalgo México
| | - Mizraim U. Flores
- Área de Electromecánica Industrial; Universidad Tecnológica de Tulancingo; 43642 Tulancingo Hidalgo México
| | - Francisco Patiño
- Ingeniería en Energía; Universidad Politécnica Metropolitana de Hidalgo; 43860 Tulancingo, Tolcayuca Hidalgo México
| | - Iván A. Reyes
- Catedrático CONACYT-Instituto de Metalurgia; Universidad Autónoma de San Luis Potosí; 78210 San Luis Potosí S.L.P. México
| | - Hernán Islas
- Área Académica de Ciencias de la Tierra y Materiales; Universidad Autónoma del Estado de Hidalgo; 42184 Hidalgo México
| | - Martín Reyes
- Área Académica de Ciencias de la Tierra y Materiales; Universidad Autónoma del Estado de Hidalgo; 42184 Hidalgo México
| | - Eliecer Méndez
- Área Académica de Ciencias de la Tierra y Materiales; Universidad Autónoma del Estado de Hidalgo; 42184 Hidalgo México
| | - Elia G. Palacios
- Departamento de Ingeniería en Metalurgia y Materiales; ESIQIE-IPN, UPALM; 07738 México, D.F. México
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29
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Simultaneous Removal of Hg(II) and Phenol Using Functionalized Activated Carbon Derived from Areca Nut Waste. METALS 2017. [DOI: 10.3390/met7070248] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Maduraiveeran G, Ramaraj R. Gold nanoparticle-based sensing platform of hydrazine, sulfite, and nitrite for food safety and environmental monitoring. J Anal Sci Technol 2017. [DOI: 10.1186/s40543-017-0113-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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31
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Wu Y, Yang L, Wang Q. Step-by-Step Design and Synthesis of Au@SiO 2@Phenyl-azathiacrown for SERS-Based Specific Quantification of Inorganic Mercury. ChemistryOpen 2017; 6:201-205. [PMID: 28413751 PMCID: PMC5390791 DOI: 10.1002/open.201600135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 11/28/2016] [Indexed: 11/23/2022] Open
Abstract
Direct SERS‐based quantification of inorganic metal species has been a problem, because they have a small Raman cross‐section or even no vibrational mode. Here, we report a new strategy for SERS‐based quantification of such metal species, as exemplified by inorganic mercury (HgII) in waters. Step‐by‐step design and synthesis from azathioethers [3, 9‐dithia‐6‐monoazaundecane (DMA) and 3,6,12,15‐tetrathia‐9‐monoazaheptadecane (TTM)] to an azathiacrown [7‐aza‐1,4,10,13‐tetrathiacyclohexadecane (NS4)] demonstrate an improved S‐pulling effect and size‐fit specificity towards HgII to form Hg−S bonds. Modification of NS4 on the surface of Au@SiO2 by using a 4‐(bromomethyl)benzoic linker enabled direct SERS‐based specific quantification of HgII for the first time, in which the ultrathin layer (ca. 2 nm) that covered the Au core (55 nm) could be a barrier preventing the Au core from having direct interaction with the HgII, and with phenyl serving as an internal standard (IS). The ratio of the Hg−S SERS band intensity at 270 cm−1 to that of IS [(γCC+γCCC) at 1046 cm−1] was practically proportional to the concentration of HgII, eliminating the inevitable uncertainties encountered in SERS‐based measurements. Such a methodology is expected to pave a new way for SERS‐based quantification of inorganic metal species when specific complexing substrates and suitable ISs are designed.
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Affiliation(s)
- Yuchao Wu
- Department of Chemistry and Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Limin Yang
- Department of Chemistry and Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Qiuquan Wang
- Department of Chemistry and Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China.,State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 P. R. China
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32
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Thymine chitosan nanomagnets for specific preconcentration of mercury(II) prior to analysis using SELDI-MS. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2125-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Chen J, Pan J, Chen S. A naked-eye colorimetric sensor for Hg2+ monitoring with cascade signal amplification based on target-induced conjunction of split DNAzyme fragments. Chem Commun (Camb) 2017; 53:10224-10227. [DOI: 10.1039/c7cc05445a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We developed a naked-eye colorimetric sensor for Hg2+ monitoring with cascade signal amplification based on DNAzyme fragments and gold nanoparticles.
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Affiliation(s)
- Junhua Chen
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management
- Guangdong Institute of Eco-environmental Science & Technology
- Guangzhou 510650
- China
| | - Jiafeng Pan
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management
- Guangdong Institute of Eco-environmental Science & Technology
- Guangzhou 510650
- China
| | - Shu Chen
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management
- Guangdong Institute of Eco-environmental Science & Technology
- Guangzhou 510650
- China
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