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Doğan B, Altunay N. Optimization of [P 6,6,6,14+] 3[GdCl 63-] magnetic ionic liquid assisted dispersive liquid-liquid microextraction for selective and sensitive determination of cadmium in environmental water and food. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:1600-1613. [PMID: 37910078 DOI: 10.1080/19440049.2023.2275601] [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: 07/24/2023] [Accepted: 10/19/2023] [Indexed: 11/03/2023]
Abstract
A simple and green hydrophobic magnetic ionic-liquid assisted dispersive liquid-liquid microextraction (MIL-DLLME) was optimized for the determination of trace cadmium (Cd (II)) in environmental and food samples by flame atomic absorption spectrophotometer. To achieve selective and sensitive extraction of Cd (II), four MILs were prepared and tested. Extraction parameters of the MIL-DLLME including pH, type and volume of the MIL, type and volume of dispersive solvent, extraction cycle, ionic strength and sample volume were investigated in detail and optimized by Box-Behnken design. Under optimum conditions, matrix effect, recovery study, intra-day and inter-day precision were performed for the MIL-DLLM. The analytical characteristics such as limit of detection, limit of quantification and pre-concentration factor were 0.17, 0.56 and 125 ng mL-1, respectively. The validation of the MIL-DLLME was evaluated by analysis of reference materials. Moreover, the accuracy of the results in the analysis of real samples was evaluated by standard addition and quantitative recoveries (91 ± 5-101 ± 2%) were achieved. The results obtained in the analysis of both reference materials and real samples showed that the MIL-DLLME has a selective applicability for cadmium.
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Affiliation(s)
- Bünyamin Doğan
- Department of Chemistry, Faculty of Science, Sivas Cumhuriyet University, Sivas, Türkiye
| | - Nail Altunay
- Department of Chemistry, Faculty of Science, Sivas Cumhuriyet University, Sivas, Türkiye
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Chen K, Mou P, Zhu A, Chen P, Chen J, Gao G, Wang X, Feng X, Yu C. A comparative study of different methods for the determination of cadmium in various tissues of ramie (Boehmeria nivea L.). ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1009. [PMID: 37522949 PMCID: PMC10390602 DOI: 10.1007/s10661-023-11601-2] [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: 11/20/2022] [Accepted: 12/29/2022] [Indexed: 08/01/2023]
Abstract
Remediation of cadmium (Cd) pollution is one of the priorities of global environmental governance and accurate detection of Cd content is a key link in remediation of Cd pollution. This study aimed to compare three methods (inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), and graphite furnace-atomic absorption spectrometry (GF-AAS)) for the determination of Cd with different tissues of various ramie varieties, and distinguish the advantage and disadvantage of each method. In total, 162 samples of ramie (Boehmeria nivea L.), which is an ideal plant for heavy metal remediation, were detected and the results showed that the three methods were all suitable for the de-termination of Cd content in ramie. ICP-OES and ICP-MS were simpler, faster, and more sensitive than GF-AAS. ICP-MS could be recommended for the determination of samples with various concentrations of Cd. ICP-OES could be used for measurement of samples with > 100 mg/kg Cd content, while GF-AAS was suitable for the detection of samples with very high (> 550 mg/kg) or very low (< 10 mg/kg) Cd content. Overall, considering the accuracy, stability, and the cost of measurement, ICP-MS was the most suitable method for determination of Cd content. This study provides significant reference information for the research in the field of Cd pollution remediation.
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Affiliation(s)
- Kunmei Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Pan Mou
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Aiguo Zhu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Ping Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Jikang Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Gang Gao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Xiaofei Wang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Xinkang Feng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China
| | - Chunming Yu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, China.
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Zhao X, Zhang X, Li Q, Song Y, Zhang J, Yang Y, Xia X, Han Q. Rapid determination of cadmium in Panax notoginseng using NCDs quantum carbon dots-aptamer fluorescence sensor. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01356-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Biscuit Contaminants, Their Sources and Mitigation Strategies: A Review. Foods 2021; 10:foods10112751. [PMID: 34829032 PMCID: PMC8621915 DOI: 10.3390/foods10112751] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 01/18/2023] Open
Abstract
The scientific literature is rich in investigations on the presence of various contaminants in biscuits, and of articles aimed at proposing innovative solutions for their control and prevention. However, the relevant information remains fragmented. Therefore, the objective of this work was to review the current state of the scientific literature on the possible contaminants of biscuits, considering physical, chemical, and biological hazards, and making a critical analysis of the solutions to reduce such contaminations. The raw materials are primary contributors of a wide series of contaminants. The successive processing steps and machinery must be monitored as well, because if they cannot improve the initial safety condition, they could worsen it. The most effective mitigation strategies involve product reformulation, and the use of alternative baking technologies to minimize the thermal load. Low oxygen permeable packaging materials (avoiding direct contact with recycled ones), and reformulation are effective for limiting the increase of contaminations during biscuit storage. Continuous monitoring of raw materials, intermediates, finished products, and processing conditions are therefore essential not only to meet current regulatory restrictions but also to achieve the aim of banning dietary contaminants and coping with related diseases.
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Silva LP, Campos NDS, Lisboa TP, de Faria LV, Matos MAC, Matos RC, de Sousa RA. Simultaneous determination of cadmium, lead and copper in chocolate samples by square wave anodic stripping voltammetry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:418-426. [PMID: 33493080 DOI: 10.1080/19440049.2020.1857443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In this work, an effective and simple method is proposed for the simultaneous determination of cadmium, lead and copper in chocolate samples by Square Wave Anodic Stripping Voltammetry (SWASV). An ultrasonic bath was used for the extraction of cadmium, lead and copper from fourteen chocolate samples using HNO3 solution (7 mol L-1). The electrochemical system consisted of a cell with three electrodes and HCl solution (10 mmol L-1) as the supporting electrolyte. An efficient extraction of the metals (~100%) was attained after 1 h of ultrasonic pre-treatment. Quantitative analysis was carried out by the standard addition method. Good linearity, precision and accuracy were obtained in the range of concentrations examined. The accuracy was evaluated by means of a reference sample of spiked skim milk powder (BCR 151) to prove the reliability of the method. Detection limits (LOD) of 0.089, 0.059 and 0.018 µg g-1 were found for cadmium, copper and lead, respectively, in the chocolate samples. Concentrations in chocolate samples were 4.30-138 µg g-1 for Cu and 0.83-27.9 µg g-1 for Pb, with no significant Cd. The simultaneous determination brings advantages to other methods already reported for chocolate analysis and the samples preparation proposed avoids the traditional sample mineralization step. These characteristics show this new method is especially attractive for case studies and routine analysis.
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Affiliation(s)
- Larissa Pinto Silva
- BACCAN (Grupo BACCAN De Química Analítica), Departamento De Química, Instituto De Ciências Exatas, Universidade Federal De Juiz De Fora, Juiz de for A, MG, Brazil
| | - Náira Da Silva Campos
- BACCAN (Grupo BACCAN De Química Analítica), Departamento De Química, Instituto De Ciências Exatas, Universidade Federal De Juiz De Fora, Juiz de for A, MG, Brazil
| | - Thalles Pedrosa Lisboa
- BACCAN (Grupo BACCAN De Química Analítica), Departamento De Química, Instituto De Ciências Exatas, Universidade Federal De Juiz De Fora, Juiz de for A, MG, Brazil
| | - Lucas Vinícius de Faria
- Instituto De Ciências Exatas, Universidade Federal De Juiz De Fora, Juiz de for A, MG, Brazil
| | | | - Renato Camargo Matos
- Instituto De Ciências Exatas, Universidade Federal De Juiz De Fora, Juiz de for A, MG, Brazil
| | - Rafael Arromba de Sousa
- BACCAN (Grupo BACCAN De Química Analítica), Departamento De Química, Instituto De Ciências Exatas, Universidade Federal De Juiz De Fora, Juiz de for A, MG, Brazil
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Response surface methodology and hydrophobic deep eutectic solvent based liquid phase microextraction combination for determination of cadmium in food and water samples. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-020-00761-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Wu H, Huang Q, Chao S, Yu J, Xu S, Wang F, Shang X, Zhu Y. Determination of Ferulic Acid in Angelica sinensis by Temperature-Controlled Hydrophobic Ionic Liquids-Based Ultrasound/Heating-Assisted Extraction Coupled with High Performance Liquid Chromatography. Molecules 2020; 25:molecules25153356. [PMID: 32722063 PMCID: PMC7436256 DOI: 10.3390/molecules25153356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/16/2020] [Accepted: 07/22/2020] [Indexed: 11/24/2022] Open
Abstract
Hydrophilic ionic liquids are often used to extract the active ingredients of medicinal plants, while hydrophobic ionic liquids are rarely used to directly extract solid samples. In this paper, a simple, novel and efficient temperature-controlled hydrophobic ionic liquids-based ultrasound/heating-assisted extraction (TC-ILs-UHAE) procedure coupled with high-performance liquid chromatography (HPLC) was developed and applied to the determination of ferulic acid (FA) in Chinese herbal medicine Angelica sinensis. During the extraction procedure, hydrophobic ionic liquids (ILs) were dispersed into water to form cloudy solution (fine droplets) with the aid of ultrasound and heating simultaneous. After extraction, phase separation was easily achieved by centrifuging at 0 °C. Among all ILs used, 1-butyl-3-methylimidazolium bis(trifluoromethanesulphonyl)imide ([C4mim]NTf2) exhibited the highest extraction ability and the possible extraction mechanism was discussed. Additionally, the synergistic effect of heating and ultrasound on the extraction efficiency was investigated. Under the optimized conditions, a good linearity was observed with correlation coefficient (r) of 0.9995. The limit of detection of FA (LOD, S/N = 3) was 9.6 µg/L and the spiked recoveries of FA for real samples were in the range of 91.67 to 102.00% with relative standard deviation (RSD) lower than 3.87%. Compared with the traditional extraction methods, the proposed method gave the highest yield of FA and had the shortest extraction time. Therefore, this method is a potential simple, green and highly efficient technique and expected to be applied to the extraction of other bioactive ingredients in medicinal plants.
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Affiliation(s)
- Hongwei Wu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China; (Q.H.); (S.C.); (J.Y.); (F.W.); (X.S.)
- Correspondence: (H.W.); (Y.Z.); Tel.: +86-373-302-9128 (H.W.); +86-571-8827-3637(Y.Z.)
| | - Qianqian Huang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China; (Q.H.); (S.C.); (J.Y.); (F.W.); (X.S.)
| | - Shujun Chao
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China; (Q.H.); (S.C.); (J.Y.); (F.W.); (X.S.)
| | - Jie Yu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China; (Q.H.); (S.C.); (J.Y.); (F.W.); (X.S.)
| | - Shengrui Xu
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453003, China;
| | - Feng Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China; (Q.H.); (S.C.); (J.Y.); (F.W.); (X.S.)
| | - Xuefang Shang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China; (Q.H.); (S.C.); (J.Y.); (F.W.); (X.S.)
| | - Yan Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
- Correspondence: (H.W.); (Y.Z.); Tel.: +86-373-302-9128 (H.W.); +86-571-8827-3637(Y.Z.)
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Zhang R, Tan Z, Zhao J, Wen Y, Fan S, Liu C. Determination of pyrethroid residues in herbal tea using temperature-controlled ionic liquid dispersive liquid-liquid microextraction by high performance liquid chromatography. Sci Rep 2020; 10:4709. [PMID: 32170197 PMCID: PMC7070011 DOI: 10.1038/s41598-020-61755-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 02/20/2020] [Indexed: 11/26/2022] Open
Abstract
A simple and effective method for determining five pyrethroid residues in herbal tea by ultrasound-enhanced temperature-controlled (UETC) ionic liquid dispersive liquid-liquid microextraction (IL-DLLME) coupled with high performance liquid chromatography-diode array detection (HPLC-DAD) was developed. The use of ultrasonication and heating improved the ability of the ionic liquid to extract the analytes. Various parameters that affect the extraction efficiency were investigated and optimized using single factor experiments and response surface design. The optimum conditions of the experiment were 121 µL of [HMIM][PF6] (extraction solvent), 794 µL of acetonitrile (dispersive solvent), a heating temperature of 40°C, a sonication time of 3.6 min and a pH of 2.9. Under optimized conditions, the linearity was in the range of 0.05–5 mg L−1 with correlation coefficients above 0.9993. The limits of detection and quantification were 1.25–1.35 µg L−1 and 5 µg L−1, respectively. The mean recoveries of the five pyrethroids ranged from 74.02% to 109.01%, with RSDs below 9.04%. The proposed method was reliable for the analysis of pyrethroids in Chinese herbal tea.
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Affiliation(s)
- Rui Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture & Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Zhenchao Tan
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture & Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Junlong Zhao
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture & Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Yan Wen
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture & Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Shuai Fan
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture & Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Chenglan Liu
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture & Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China.
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