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Yilmaz E, Yavuz E. Use of transition metal dichalcogenides (TMDs) in analytical sample preparation applications. Talanta 2024; 266:125086. [PMID: 37633038 DOI: 10.1016/j.talanta.2023.125086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/28/2023]
Abstract
Since the discovery of graphene, nano-sized two-dimensional (2D) transition metal dichalcogenides (TMDs) such as MoS2, MoSe2, MoTe2, NbS2, NbSe2, WS2, WSe2, TaS2 and TaSe2, which have been classified as next-generation nanomaterials resembling graphene (G) have complementary basic properties with those of graphene in terms of their practical applications. TMDs are attracting great attention due to their attractive physical, chemical and electronic properties. Despite being overshadowed by graphene in terms of frequency of use, TMDs have been used frequently in many areas in recent years instead of carbon-based materials such as graphene (G), graphene oxide (GO), carbon nanotubes (CNTs) and nanodiamonds (NDs). It is seen that the first and frequent uses of TMDs, which are classified as new generation materials, are in the fields of catalysis, electronic applications, hydrogen production processes and energy storage, but it has been used as an adsorbent in sample preparation techniques in recent years. Similar to graphene, layers of TMDs are held together by weak van der Waals interactions. The sandwiched layers of TMDs provide sufficient and effective interlayer spaces so that foreign molecules, ions and atoms can easily enter these spaces between the layers. Intermolecular interactions increase with the entry of different materials into these spaces, and thus, high activity, adsorption capacity and efficiency are obtained in adsorption-based analytical sample preparation methods. Although there are about 35 research articles using TMDs, which are classified as promising materials in analytical sample preparation techniques, no review studies have been found. This review, which was designed with this awareness, contains important informations on the properties of metal dichalcogenides, their production methods and their use in analytical sample preparation techniques.
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Affiliation(s)
- Erkan Yilmaz
- Technology Research & Application Center (TAUM), Erciyes University, 38039, Kayseri, Turkey; ERNAM-Erciyes University, Nanotechnology Application and Research Center, 38039, Kayseri, Turkey; Erciyes University, Faculty of Pharmacy, Department of Analytical Chemistry, 38039, Kayseri, Turkey; ChemicaMed Chemical Inc., Erciyes University Technology Development Zone, 38039 Kayseri, Turkey.
| | - Emre Yavuz
- Erzincan Binali Yildirim University, Cayirli Vocational School, Department of Medical Services and Technicians, 24503, Erzincan, Turkey.
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2
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Tang Y, Zhan X, Zheng J, Xie Z, Zhu S, Wu Y. Facile colorimetric smartphone-based biosensor for rapid detection of organophosphorus pesticides residues in environment using the aptamer-enhanced oxidase activity of octahedral Ag 2O particles. Anal Chim Acta 2023; 1264:341325. [PMID: 37230725 DOI: 10.1016/j.aca.2023.341325] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023]
Abstract
The long-term and excessive use of organophosphorus pesticides (OPs) leads to hazardous residues in the environment, which threatens human health to a considerable extent. Colorimetric methods can quickly and readily identify pesticide residue, but they still have various challenges in accuracy and stability. Herein, a smartphone-assisted and non-enzymatic colorimetric biosensor was constructed for rapid monitoring of multiple OPs based on the enhanced effect of aptamer on the catalytic ability of octahedral Ag2O. It was demonstrated that the aptamer sequence could enhance the affinity of colloidal Ag2O to chromogenic substrates, and accelerate the generation of oxygen radicals such as superoxide radical (·O2-) and singlet oxygen (1O2) from dissolved oxygen, thereby significantly increasing the oxidase activity of octahedral Ag2O. The color change of the solution can be easily converted to the corresponding RGB values by a smartphone for quantitative and rapid detection of multiple OPs. Hence, the smartphone-based and visual biosensor of multiple OPs was acquired with limit of detection of 10 μg L-1, 28 μg L-1 and 40 μg L-1 for isocarbophos, profenofos and omethoate, respectively. The colorimetric biosensor also exhibited good recoveries in several environmental and biological samples, showing that it may have broad application prospects for detecting OPs residues.
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Affiliation(s)
- Yue Tang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang, 550025, China; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Guizhou University, Guiyang, 550025, China
| | - Xiangqiang Zhan
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Guizhou University, Guiyang, 550025, China
| | - Jia Zheng
- Wuliangye Yibin Co., Ltd, Yibin, 644000, Sichuan Province, China
| | - Zhengmin Xie
- Wuliangye Yibin Co., Ltd, Yibin, 644000, Sichuan Province, China
| | - Shuangju Zhu
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Guizhou University, Guiyang, 550025, China
| | - Yuangen Wu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang, 550025, China; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Guizhou University, Guiyang, 550025, China.
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Zhang ZY, Xu YH, Chen KY, Zhang MH, Meng CY, Wang XS, Wang MM. Flower-like molybdenum disulfide/cobalt ferrite composite for the extraction of benzotriazole UV stabilizers in environmental samples. Mikrochim Acta 2023; 190:75. [PMID: 36700977 DOI: 10.1007/s00604-023-05658-6] [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: 11/02/2022] [Accepted: 01/11/2023] [Indexed: 01/27/2023]
Abstract
Benzotriazole UV stabilizers (BUVSs) are a class of emerging contaminants of concern; the development of rapid and convenient monitoring method for these trace-level pollutants in waters is of crucial significance in environmental science. Here, a novel magnetic flower-like molybdenum disulfide/cobalt ferrite nanocomposite (MoS2/CoFe2O4) was synthesized by hydrothermal reaction. Compared with the conventional Fe3O4-based magnetic composites, the proposed material just required a minimum consumption of Co/Fe towards the equivalent of MoS2 while providing superior magnetization performance. Taking advantages of high adsorption capacity, extraordinary stability, and repeatability in construction, MoS2/CoFe2O4 was applied to the extraction to BUVSs. The enrichment factors of three BUVSs were in the range 164-193 when 20 mL of environmental water sample was loaded on 40 mg of the adsorbent. MoS2/CoFe2O4 could be regenerated and recycled at least 10 cycles of adsorption/desorption with recoveries of 80.1-111%. The method of MoS2/CoFe2O4-based extraction coupled with high-performance liquid chromatography-variable wavelength detector was applied to the monitoring of BUVSs in seawater, lake water, and wastewater, which gave detection limits (S/N = 3) of 0.023-0.030 ng·mL-1 and recoveries of 80.1-110%. The intra-day and inter-day precisions (relative standard deviation, RSDs, n = 3) were in the range 1.6-7.5% and 3.2-11.5%, respectively. The approach is an alternative for efficient and sensitive extraction and determination of trace-level environmental pollutants in waters.
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Affiliation(s)
- Zi-Yang Zhang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China
| | - Yi-Heng Xu
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China
| | - Ke-Yan Chen
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China
| | - Mei-Hang Zhang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China
| | - Chun-Yan Meng
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China
| | - Xue-Sheng Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China
| | - Man-Man Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, CaofeidianHebei, 063210, Tangshan, China.
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Mohamed AH, Yahaya N, Mohamad S, Kamaruzaman S, Osman H, Nishiyama N, Hirota Y. Synthesis of oil palm empty fruit bunch-based magnetic-carboxymethyl cellulose nanofiber composite for magnetic solid-phase extraction of organophosphorus pesticides in environmental water samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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5
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Xu R, Tao Y, Yao W, Qin H, Qiao L. Three-dimensional flower-like SnS 2 materials for dispersive solid-phase extraction of endocrine-disrupting phenols. J Sep Sci 2022; 45:4224-4235. [PMID: 36189856 DOI: 10.1002/jssc.202200419] [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: 05/24/2022] [Revised: 08/26/2022] [Accepted: 09/20/2022] [Indexed: 12/13/2022]
Abstract
In this study, three-dimensional flower-like tin disulfide materials were prepared, and a highly efficient dispersive solid-phase extraction method was developed using the obtained three-dimensional tin disulfide adsorbents for the preconcentration and determination of six endocrine-disrupting phenols in combination with high-performance liquid chromatography-ultraviolet detection. Several important experimental parameters influencing extraction efficiency were investigated, including the amount of adsorbent, ultrasound time, sample solution pH, sample volume, type of elution solvent, desorption time, and the number of desorption times. Under the optimized experimental conditions, the developed method showed good linearity with the determination coefficients of 0.993-0.998 in the linear range of 0.5-400 ng/ml and low limits of detection in the range of 0.15-1.0 ng/ml, as well as satisfactory intra-day and inter-day precisions with relative standard deviations of 0.1-9.8%. Finally, the proposed method was successfully applied for the enrichment and determination of trace endocrine-disrupting phenols in milk, tea beverage, and plastic bottled water samples, and acceptable recoveries were obtained from 70.1% to 119.1% under four different spiked concentration levels. The results showed that the three-dimensional tin disulfide materials had great potential for the extraction of endocrine-disrupting phenols contaminants in environmental and food samples.
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Affiliation(s)
- Ruozhu Xu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China
- School of Chemical Engineering, Dalian University of Technology, Panjin, P. R. China
| | - Yuan Tao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China
- School of Chemical Engineering, Dalian University of Technology, Panjin, P. R. China
| | - Wang Yao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China
- School of Chemical Engineering, Dalian University of Technology, Panjin, P. R. China
| | - Honglin Qin
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China
- School of Chemical Engineering, Dalian University of Technology, Panjin, P. R. China
| | - Lizhen Qiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China
- School of Chemical Engineering, Dalian University of Technology, Panjin, P. R. China
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6
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Preparation of magnetic molybdenum disulfide for the extraction of neonicotinoid insecticides from environmental water samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Elencovan V, Yahaya N, Raoov M, Zain NNM. Exploring a novel silicone surfactant-based deep eutectic solvent functionalized magnetic iron particles for the extraction of organophosphorus pesticides in vegetable samples. Food Chem 2022; 396:133670. [PMID: 35853378 DOI: 10.1016/j.foodchem.2022.133670] [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: 12/14/2021] [Revised: 05/25/2022] [Accepted: 07/08/2022] [Indexed: 11/26/2022]
Abstract
The current study discussed the use of silicone surfactant-based deep eutectic solvent as a surface modifier for magnetic iron particles (Fe3O4) to produce a novel adsorbent and its application for the extraction of organophosphorus pesticides (OPPs) in vegetable samples. A deep eutectic solvent (DES) was prepared using low toxic and inexpensive substances such as silicone surfactant (SS) and dodecanoic acid (DoAc). This new eco-friendly SS:DoAc based DES was explored as a substitution to traditional organic reagents for surface modification of Fe3O4 to increase the adsorption capacity and to reduce the matrix interferences, hazardous waste generation and environmental pollution. The newly synthesized SS:DoAc@Fe3O4 adsorbent was successfully characterized and applied in magnetic solid phase extraction (MSPE). Under optimized conditions, the proposed approach exhibited excellent linearity ranging from 0.1 to 200 µg/kg (R2 ≥ 0.9970), low detection limit (0.03-0.1 µg/kg) and acceptable relative recovery (80-119 %) for the studied OPPs.
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Affiliation(s)
- Vasagee Elencovan
- Department of Toxicology, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Kepala Batas, Penang, Malaysia
| | - Noorfatimah Yahaya
- Department of Toxicology, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Kepala Batas, Penang, Malaysia
| | - Muggundha Raoov
- Department of Chemistry, Faculty of Science, Universiti of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Nur Nadhirah Mohamad Zain
- Department of Toxicology, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Kepala Batas, Penang, Malaysia.
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Barkae TH, Zeid AM, Xu G. Highly Sensitive Detection of the Insecticide Azamethiphos by Tris(2,2'-bipyridine)ruthenium(II) Electrogenerated Chemiluminescence. SENSORS (BASEL, SWITZERLAND) 2022; 22:2519. [PMID: 35408132 PMCID: PMC9002990 DOI: 10.3390/s22072519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Azamethiphos (AZA) is an insecticide and neurotoxic agent that causes the inhibition of acetylcholinesterase (AChE). AChE is a vital enzyme for neurotransmission because it metabolizes acetylcholine neurotransmitter at the synaptic cleft and terminates synaptic transmission. It is worth mentioning that organophosphates and carbamates inhibit AChE. These AChE inhibitors bind to the active site of the enzyme and inactivate it, leading to paralysis and death. Herein, for the first time, we develop a sensitive, low-cost, and rapid electrogenerated chemiluminescence (ECL) system for the detection of AZA. The designed ECL sensor was applied for the highly sensitive detection of AZA with a wide dynamic range (from 0.1 μM to 1000 μM) and low detection limit of 0.07 μM (S/N = 3). The practical utility of the sensor demonstrates high recoveries (96-102%) in real samples of lake water and wastewater.
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Affiliation(s)
- Tesfaye Hailemariam Barkae
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; (T.H.B.); (A.M.Z.)
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, College of Natural & Computational Science, Wolkite University, Wolkite P.O. Box 07, Ethiopia
| | - Abdallah M. Zeid
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; (T.H.B.); (A.M.Z.)
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; (T.H.B.); (A.M.Z.)
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
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9
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Abstract
以氧化石墨烯气凝胶三维纳米材料作为固相萃取的吸附剂,结合高效液相色谱,对食品中的有机磷农药(辛硫磷、双硫磷、倍硫磷、杀螟硫磷)进行检测分析。首先,利用冷冻干燥的方式制备得到氧化石墨烯气凝胶,通过扫描电镜、红外光谱、比表面积吸附等一系列的实验手段对其形貌及物理特性进行了表征,证明其成功合成。从扫描电镜中可见石墨烯的层状褶皱结构,其表面积为740.51 m2/g。然后,将氧化石墨烯气凝胶直接填充于固相萃取柱中,在未借助任何硅胶等基体的条件下进行萃取研究;通过单因素实验,系统研究了萃取和洗脱条件对有机磷农药萃取回收率的影响。结果显示,在上样体积15 mL、样品溶液pH值4、上样速率1.0 mL/min、洗脱剂1.0 mL乙腈的条件下萃取回收率最高。与商用的萃取材料进行比较,包括碳十八硅胶柱(C18)、阴离子交换柱(SAX)、氨基柱(-NH2)和硅酸镁柱(Florisil),氧化石墨烯气凝胶填充的固相萃取柱的萃取回收率有明显提高。实验考察了氧化石墨烯气凝胶直接填充的萃取柱的寿命,结果显示该萃取柱可以重复使用15次,可见解决了分散无基体支撑的石墨烯纳米片容易破碎、堵塞筛板的问题。与液相色谱联用建立分析方法,4种有机磷农药的线性范围较宽,辛硫磷、双硫磷和倍硫磷的线性范围为1~200 μg/L,杀螟硫磷的线性范围为2~200 μg/L,线性拟合良好(线性相关系数r2≥0.9949),检出限为0.2~0.5 μg/L,满足于我国和其他国家限定标准的检测。将该方法应用于实际样品,在苹果皮中未检测到有机磷农药,对其进行加标,回收率为70.5%~93.6%,相对标准偏差≤10.4%。
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Zhang S, Hua Z, Yao W, Lü T, Chen Y, Fang Z, Zhao H. Use of corn straw-derived biochar for magnetic solid-phase microextraction of organophosphorus pesticides from environmental samples. J Chromatogr A 2021; 1660:462673. [PMID: 34800896 DOI: 10.1016/j.chroma.2021.462673] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 01/13/2023]
Abstract
In this study, the potentials of utilizing corn straw-derived biochar in environmental sample pretreatment were examined. An one-step magnetization and carbonization process was developed to prepare magnetic biochar by mixing corn straw powder with Fe2+/Fe3+ and then pyrolyzed at different temperatures (400-800 °C). The obtained magnetic biochars were characterized by using scanning electron microscopy, Brunauer-Emmett-Teller isotherms, X-ray diffraction and Fourier transform infrared spectroscopy. Various extraction affecting parameters, such as Fe2+/Fe3+content, pyrolytic temperature, species of desorption solvent, extraction and desorption time, respectively, were studied and optimized. Results showed that the magnetic biochar pyrolyzed at 700 °C exhibited the best extraction performance, with enrichment factors ranging from 52 to 210, presumably due to H-bonding and π-π interactions between biochar and organophosphorus, as well as to the high surface area and pore volume of biochar. The magnetic biochar-based extraction was further combined with gas chromatography-mass spectrometry (GC/MS) to analyze trace organophosphorus pesticides from environmental samples. The method demonstrated good linearity (0.1-50 µg·L-1), low limits of detection (0.02-0.11 µg·L-1), and high recoveries (72.4-96.8%) from spiked water and soil samples. The results of this study suggested the promising potentials of utilizing corn straw-derived biochar for efficiently enriching trace organophosphorus pesticides from complex environmental samples.
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Affiliation(s)
- Suling Zhang
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Ziluo Hua
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Weixuan Yao
- Key Laboratory of Drug Prevention and Control Technology of Zhejiang Province, Department of Criminal Science and Technology, Zhejiang Police College, Hangzhou, 310053, China
| | - Ting Lü
- Key Laboratory of Drug Prevention and Control Technology of Zhejiang Province, Department of Criminal Science and Technology, Zhejiang Police College, Hangzhou, 310053, China
| | - Yueping Chen
- Key Laboratory of Drug Prevention and Control Technology of Zhejiang Province, Department of Criminal Science and Technology, Zhejiang Police College, Hangzhou, 310053, China
| | - Zheng Fang
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528011, Guangdong, China
| | - Hongting Zhao
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China; School of Environmental and Chemical Engineering, Foshan University, Foshan, 528011, Guangdong, China.
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Li Y, Li B, Qi Y, Zhang Z, Cong S, She Y, Cao X. Synthesis of metal-organic framework @molecularly imprinted polymer adsorbents for solid phase extraction of organophosphorus pesticides from agricultural products. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1188:123081. [PMID: 34911000 DOI: 10.1016/j.jchromb.2021.123081] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/05/2021] [Accepted: 12/06/2021] [Indexed: 02/06/2023]
Abstract
The novel core-shell structural zeolitic imidazolate framework-8 @molecularly imprinted polymers were successfully synthesized by surface imprinting technique and used as adsorbents for solid-phase extraction of organophosphorus pesticides. The obtained hybrid composites were characterized by scanning electron microscopy, transmission electron microscopy and Fourier-transform infrared, and their adsorbing and recognition performance were evaluated by binding experiments. The results showed that zeolitic imidazolate framework-8 @molecularly imprinted polymers presented a typically core-shell structure with molecularly imprinted shell (about 50 nm) homogeneously polymerized on the surface of zeolitic imidazolate framework-8 core, and exhibited specific recognition towards organophosphorus pesticides with fast adsorption capacity. The adsorption and desorption conditions including sample loading solvent, sample pH, washing and elution solvent were optimized. Under optimum conditions, the solid-phase extraction based on zeolitic imidazolate framework-8 @molecularly imprinted polymers combined with high liquid chromatography-tandem mass spectrometry method for determining organophosphorus pesticides was established and exhibited good linearity (R2 ≥ 0.9927) in the range of 1-200 µg/L. With spiked at three different concentration levels in agricultural products (cauliflower, radish, pear, muskmelon), the recoveries ranged from 82.5% to 123.0% with relative standard deviations lower than 8.24%. The developed method was sensitive, convenient and efficient. More importantly, this study could provide a promising strategy for designing new adsorbents with extremely fast mass transfer rate for other potential trace contaminants.
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Affiliation(s)
- Yang Li
- College of Life Science, Yantai University, Yantai 264005, PR China
| | - Bingzhi Li
- College of Life Science, Yantai University, Yantai 264005, PR China
| | - Yan Qi
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China
| | - Ziping Zhang
- College of Life Science, Yantai University, Yantai 264005, PR China
| | - Shuang Cong
- College of Life Science, Yantai University, Yantai 264005, PR China.
| | - Yongxin She
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, PR China
| | - Xiaolin Cao
- College of Life Science, Yantai University, Yantai 264005, PR China.
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12
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Li B, Chen M, Li Y, Cao X, She Y, Yin J, Cong S, Zhang Z. Preparation of flower-like molybdenum disulfide for solid-phase extraction of N-nitrosoamines in environmental water samples. J Sep Sci 2021; 45:752-759. [PMID: 34856052 DOI: 10.1002/jssc.202100788] [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] [Received: 10/01/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/09/2022]
Abstract
In this paper, a flower-like molybdenum disulfide material was prepared by hydrothermal method and was first used as adsorbents in the solid-phase extraction process for enriching N-nitrosoamines. Molybdenum disulfide exhibited three-dimensional petal-like microspheres with about 500 nm in diameter. The relevant analyte extraction and elution parameters (sample volumes, solution pH, washing solvents, elution solvents, and elution volumes) were optimized to improve the solid-phase extraction efficiency. The solid-phase extraction process coupled with high-performance liquid chromatography-tandem mass spectrometry for determining N-nitrosoamines in environmental water samples was established. The limits of detection were in the range of 0.01-0.05 ng/mL. The satisfactory recoveries (68.9-106.1%) were obtained at three different spiked concentrations (2, 5, and 8 ng/mL) in water samples, and the relative standard deviations were between 1.96 and 8.38%. This proposed method not only showed high sensitivity and good reusability but also provided a new adsorbent for enriching trace N-nitrosoamines in environmental water samples.
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Affiliation(s)
- Bingzhi Li
- College of Life Science, Yantai University, Yantai, P. R. China
| | - Min Chen
- Yantai Academy of Agricultural Sciences, Yantai, P. R. China
| | - Yang Li
- College of Life Science, Yantai University, Yantai, P. R. China
| | - Xiaolin Cao
- College of Life Science, Yantai University, Yantai, P. R. China
| | - Yongxin She
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing, P. R. China
| | - Jungang Yin
- College of Life Science, Yantai University, Yantai, P. R. China
| | - Shuang Cong
- College of Life Science, Yantai University, Yantai, P. R. China
| | - Ziping Zhang
- College of Life Science, Yantai University, Yantai, P. R. China
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13
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Zhao G, Zhou B, Wang X, Shen J, Zhao B. Detection of organophosphorus pesticides by nanogold/mercaptomethamidophos multi-residue electrochemical biosensor. Food Chem 2021; 354:129511. [PMID: 33735695 DOI: 10.1016/j.foodchem.2021.129511] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/31/2021] [Accepted: 02/28/2021] [Indexed: 12/26/2022]
Abstract
Based on the successful synthesis of mercaptomethamidophos as a substrate, a novel nanogold/mercaptomethamidophos multi-residue electrochemical biosensor was designed and fabricated by combining nanoscale effect, strong Au-S bonds as well as interaction between acetylcholinesterase (AChE) and mercaptomethamidophos, which can simultaneously detect 11 kinds of organophosphorus pesticides (OPPs) and total amount of OPPs using indirect competitive method. Electrochemical behavior of the modified electrode was characterized by differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The AChE concentration and incubation time were optimized at 37.4 °C to achieve the best detection effect. This biosensor exhibits excellent electrochemical properties with a wider linear range of 0.1 ~ 1500 ng·mL-1, lower detection limit of 0.019 ~ 0.077 ng·mL-1, better stability and repeatability, which realizes the rapid detection of total amount of OPPs, and can simultaneously detect a large class of OPPs rather than one kind of OPP. Two OPPs (trichlorfon, dichlorvos) were detected in actual samples of apple and cabbage and achieved satisfactory test results.
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Affiliation(s)
- Guozheng Zhao
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemistry and Material Science, College of Food Science, Shanxi Normal University, Linfen 041004, China.
| | - Binhua Zhou
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiuwen Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jian Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Bo Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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14
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A multi-residue electrochemical biosensor based on graphene/chitosan/parathion for sensitive organophosphorus pesticides detection. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138355] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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