1
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Joshi R, Adhikari S, Kim M, Jang Y, Min HJ, Lee D, Cho BK. Trace level detection of melamine and cyanuric acid extracted from pet liquid food (milk) using a SERS Au nanogap substrate. Curr Res Food Sci 2024; 8:100726. [PMID: 38590692 PMCID: PMC10999514 DOI: 10.1016/j.crfs.2024.100726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/26/2024] [Accepted: 03/26/2024] [Indexed: 04/10/2024] Open
Abstract
This study reported an application of Au nanogap substrates for surface-enhanced Raman scattering (SERS) measurements to quantitatively analyze melamine and its derivative products at trace levels in pet liquid food (milk) combined with a waveband selection approach, namely variable importance in projection (VIP). Six different concentrations of melamine, cyanuric acid, and melamine combined with cyanuric acid were created, and SERS spectra were acquired from 550 to 1620cm-1. Detection was possible up to 200 pM for melamine-contaminated samples, and 400 pM concentration detection for other two groups. The VIP-PLSR models obtained correlation coefficient (R2) values of 0.997, 0.985, and 0.981, with root mean square error of prediction (RMSEP) values of 18.492 pM, 19.777 pM, and 15.124 pM for prediction datasets. Additionally, partial least square discriminant analysis (PLS-DA) was used to classify both pure and different concentrations of spiked samples. The results showed that the maximum classification accuracy for melamine was 100%, for cyanuric acid it was 96%, and for melamine coupled with cyanuric acid it was 95%. The results obtained clearly demonstrated that the Au nanogap substrate offers low-concentration, rapid, and efficient detection of hazardous additive chemicals in pet consuming liquid food.
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Affiliation(s)
- Rahul Joshi
- Department of Biosystems Machinery Engineering, Chungnam National University, 99 Daehak-to, Yuseong-gu, Daejeon, 34134, South Korea
| | - Samir Adhikari
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
| | - Minjun Kim
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
| | - Yudong Jang
- Institute of Quantum Systems, Chungnam National University, Daejeon, 34134, South Korea
| | - Hyun Jung Min
- Department of Mechanical Engineering, Purdue University, IN, 47907, USA
| | - Donghan Lee
- Department of Physics, Chungnam National University, Daejeon, 34134, South Korea
- Institute of Quantum Systems, Chungnam National University, Daejeon, 34134, South Korea
| | - Byoung-Kwan Cho
- Department of Biosystems Machinery Engineering, Chungnam National University, 99 Daehak-to, Yuseong-gu, Daejeon, 34134, South Korea
- Department of Smart Agriculture Systems, College of Agricultural and Life Science, Chungnam National University, 99 Daehak-to, Yuseong-gu, Daejeon, 34134, South Korea
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2
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Cao W, Shan S, Xing K, Jing X, Peng J, Xiao X, Liu D, Xia J, Lai W. Novel rapid detection of melamine based on the synergistic aggregation of gold nanoparticles. Food Chem 2023; 428:136789. [PMID: 37423110 DOI: 10.1016/j.foodchem.2023.136789] [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: 11/01/2022] [Revised: 06/26/2023] [Accepted: 07/01/2023] [Indexed: 07/11/2023]
Abstract
A simple and rapid colorimetric method for the detection of melamine in milk samples is described. Polythymidine oligonucleotide was adsorbed on to the surface of gold nanoparticles (AuNPs), protecting it from aggregation. In the presence of melamine, polythymidine oligonucleotide combined with melamine formed a double-strand DNA-like structure, allowing AuNPs aggregation. In the presence of positively charged SYBR Green I (SG I), AuNPs were further aggregated. In the presence of melamine and SG I, aggregation of AuNPs was synergistic. Thus, in this principle, melamine can be detected visually. Plasmon resonance peak changes enabled detection of melamine quantitatively using UV-vis spectroscopy. The limit of detection for this colorimetric method was 16 μg L-1 with a good linear range from 19.5 μg L-1 to 1.25 × 103 μg L-1, and detection took only 1 min. The method was successfully applied for detection of melamine in milk samples.
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Affiliation(s)
- Wenkai Cao
- State Key Laboratory of Food Science and Resources, Nanchang University 235, East Nanjing Road, Nanchang 330047, China
| | - Shan Shan
- College of Life Science, National R&D Center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang 330022, China
| | - Keyu Xing
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Xudong Jing
- State Key Laboratory of Food Science and Resources, Nanchang University 235, East Nanjing Road, Nanchang 330047, China
| | - Juan Peng
- State Key Laboratory of Food Science and Resources, Nanchang University 235, East Nanjing Road, Nanchang 330047, China
| | - Xiaoyue Xiao
- State Key Laboratory of Food Science and Resources, Nanchang University 235, East Nanjing Road, Nanchang 330047, China
| | - Daofeng Liu
- Jiangxi Province Key Laboratory of Diagnosing and Tracing of Foodborne Disease, Jiangxi Province Center for Disease Control and Prevention, 555 East Beijing Road, Nanchang 330029, China.
| | - Jun Xia
- Jiangxi Agricultural Technology Extension Center, Animal Epidemic Control Building, 698 Gaoxin Seventh Road, China.
| | - Weihua Lai
- State Key Laboratory of Food Science and Resources, Nanchang University 235, East Nanjing Road, Nanchang 330047, China.
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3
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Sereshti H, Mohammadi Z, Soltani S, Taghizadeh M. Synthesis of a magnetic micro-eutectogel based on a deep eutectic solvent gel immobilized in calcium alginate: Application for green analysis of melamine in milk and dairy products. Talanta 2023; 265:124801. [PMID: 37385193 DOI: 10.1016/j.talanta.2023.124801] [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: 02/27/2023] [Revised: 05/26/2023] [Accepted: 06/09/2023] [Indexed: 07/01/2023]
Abstract
A new three-component magnetic eutectogel composed of a crosslinked copolymeric deep eutectic solvent (DES) and polyvinylpyrrolidone-coated Fe3O4 nano-powder impregnated in calcium alginate gel was synthesized and applied as a sorbent material in a green alternative micro solid-phase extraction of melamine in milk and dairy products. The analyses were performed using the HPLC-UV technique. The copolymeric DES was prepared through thermally-induced free-radical polymerization of [2-hydroxyethyl methacrylate]:[thymol] DES (1:1 mol ratio) as functional monomer, azobisisobutyronitrile (as initiator), and ethylene glycol dimethacrylate (as crosslinker). The sorbent was characterized using ATR-FTIR, 1H & 13C FT-NMR, SEM, VSM, and BET techniques. The stability of the eutectogel in water and its effect on the pH of the aqueous solution was studied. A one-at-a-time approach was applied to optimize the impact of significant factors influencing sample preparation efficiency (sorbent mass, desorption conditions, adsorption time, pH, and ionic strength). The method validation was performed by evaluating matrix-matched calibration linearity (2-300 μg kg-1, r2 = 0.9902), precision, system suitability, specificity, enrichment factor, and matrix effect. The obtained limit of quantification (0.38 μg kg-1) was lower than the established maximum level for melamine by Food and Drug Administration (FDA) (0.25 mg kg-1), Food and Agriculture Organization (FAO) (0.5 & 2.5 mg kg-1), and The European Union (EU) (2.5 mg kg-1) in milk and dairy products. The optimized procedure was applied for the analysis of melamine in bovine milk, yogurt, cream, cheese, and ice cream. The obtained normalized recoveries of 77.4-105.3% (RSD% <7.0%) were acceptable regarding the practical default range set by the European Commission (70-120%, RSD≤20%). The sustainability and green aspects of the procedure were evaluated by the Analytical Greenness Metric Approach (0.6/1.0) and the Analytical Eco-Scale tool (73/100). This paper presents the first-time synthesis and application of this micro-eutectogel for the analysis of melamine in milk and milk-based dairy products.
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Affiliation(s)
- Hassan Sereshti
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
| | - Zahra Mohammadi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Sara Soltani
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Massoud Taghizadeh
- Department of Biology, Faculty of Science, Shahed University, Tehran, Iran
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4
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Kharajinezhadian R, Javad Chaichi M, Nazari O, Mansour Lakouraj M, Hasantabar V. Fraud monitoring using a new disposable photoluminescence sensor in milk. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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5
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Shishov A, Nizov E, Bulatov A. Microextraction of melamine from dairy products by thymol-nonanoic acid deep eutectic solvent for High-Performance Liquid Chromatography-Ultraviolet determination. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.105083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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6
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Application of 2D-COS-FTIR spectroscopic analysis to milk powder adulteration: Detection of melamine. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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One step construction of an electrochemical sensor for melamine detection in milk towards an integrated portable system. Food Chem 2022; 383:132403. [PMID: 35158131 DOI: 10.1016/j.foodchem.2022.132403] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 12/27/2022]
Abstract
Excessive intake of melamine (MEL) can be harmful to human health, and it is important to establish a rapid and accurate MEL detection method. As the electrochemical activity of MEL is very low, ferrocenylglutathione (Fc-ECG) was used as an electron transfer mediator to assist with the detection of MEL using screen-printed carbon electrode (SPCE). This modified electrode (MEL/Fc-ECG/SPCE) was prepared by stepwise drop-casting and was fully characterized. Results showed that MEL significantly enhanced signal of Fc-ECG/SPCE sensor due to the three p-π conjugated double bonds that facilitated electron transfer. Under optimal conditions, the sensor exhibits two linearities in the range of 0.20-2.00 μM and 8.00-800 μM, with a sensitivity of 15.03 μA·μM-1·cm-2. The selectivity, stability, and reproducibility were investigated and successfully used to detect MEL in raw milk and confirms safety verification of foods. Moreover, a portable testing platform was designed for MEL detection based on a CH32 chip.
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8
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Background-free room temperature phosphorescence and digital image colorimetry detection of melamine by carbon nitride quantum dots in cellulose matrix with smartphone-based portable device. Food Chem 2022; 390:133135. [PMID: 35597095 DOI: 10.1016/j.foodchem.2022.133135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 04/03/2022] [Accepted: 04/29/2022] [Indexed: 11/23/2022]
Abstract
Carbon nitride quantum dots (CNQDs) were embedded in the sodium carboxymethyl cellulose (CMC) matrix to form CNQDs-CMC film to explore the room temperature phosphorescence (RTP) of CNQDs, which suppress the non-radiative relaxation process due to the internal hydrogen bonding interactions between CMC and CNQDs. Then, a simple, inexpensive, background-free miniature device integrating with CNQDs-CMC film and smartphone was fabricated for rapid and quantitative detection of melamine (MEL). In the present of MEL, the yellow RTP color of the CNQDs-CMC film was quenched and photographed by the smartphone. The Color Recognizer APP in the smartphone recognized the red (R) value for quantitative detection of MEL. Thus, digital image colorimetry (DIC) determination of MEL was achieved due to the visible RTP color change of CNQDs-CMC film. The smartphone-based miniature device provided a promising platform for the on-site monitoring analytes in the complex matrix including food safety, environmental screening, health monitoring, and disease prevention.
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9
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Yang C, Du C, Su R, Wang J, Li Y, Ma X, Li Z, Sun C. A signal-on fluorescent aptasensor by sensitized Tb 3+ luminescence for detection of melamine in milk. Talanta 2022; 236:122842. [PMID: 34635232 DOI: 10.1016/j.talanta.2021.122842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/29/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
A fluorescent aptasensor based on sensitized terbium(III) luminescence was constructed to detect melamine in milk. Tb3+ as the fluorescence probe can be sensitized by a guanine-rich single-stranded DNA sequence, so the complementary sequence of the polythymidine aptamer (cDNA) was modified with six consecutive guanine bases (G6). In the absence of melamine, melamine aptamer combined with cDNA to form a double helix structure, and G6 hybridized with the extended cytosine bases in the aptamer, resulting in low fluorescence intensity of Tb3+. In the presence of melamine, cDNA was released due to the specific recognition of melamine to the aptamer, resulting in stronger sensitized fluorescence intensity of Tb3+. Under the optimum conditions, the linear concentration of melamine in the milk ranged from 1.0 μg/mL to 10.0 μg/mL. This aptasensor can be used for the accurate and rapid detection of melamine in milk with a detection limit of 0.02 μg/mL, and has the advantages of high sensitivity, high efficiency, simple operation and low cost.
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Affiliation(s)
- Chuanyu Yang
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Caiyi Du
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Ruifang Su
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Junyang Wang
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Ying Li
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Xinyue Ma
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Zhihong Li
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Chunyan Sun
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, 130062, China.
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10
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Öztürk S, Demir N. Development of a novel IMAC sorbent for the identification of melamine in dairy products by HPLC. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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11
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Feng X, Li Y, Yang Y, Ma Y, Chen T, Ji W, Sun Y, Chen Y. Using a Dopamine‐Modified Magnetic Nano‐flower Material for the Solid Phase Extraction of Cyromazine and Melamine in Food Samples. ChemistrySelect 2021. [DOI: 10.1002/slct.202100466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiangzhi Feng
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
- College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Yuanyuan Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
- College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Yuanyuan Yang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
- College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Yulong Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
- College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Tong Chen
- Comprehensive Technology Centre Zhenjiang Customs District P. R. of China Zhenjiang 212000 China
| | - Wenxin Ji
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
- College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Yonggang Sun
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
- College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Yang Chen
- Shanghe New Materials Company Zhenjiang 212000 China
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12
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Sun Y, Zhai X, Xu Y, Liu C, Zou X, Li Z, Shi J, Huang X. Facile fabrication of three-dimensional gold nanodendrites decorated by silver nanoparticles as hybrid SERS-active substrate for the detection of food contaminants. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107772] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Chemometric non-targeted analysis for detection of soybean meal adulteration by near infrared spectroscopy. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107459] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Shirani M, Kamboh MA, Akbari-Adergani B, Akbari A, Sadia Arain S, Rashidi Nodeh H. Sonodecoration of magnetic phosphonated-functionalized sporopollenin as a novel green nanocomposite for stir bar sorptive dispersive microextraction of melamine in milk and milk-based food products. Food Chem 2020; 341:128460. [PMID: 33162256 DOI: 10.1016/j.foodchem.2020.128460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/28/2020] [Accepted: 10/20/2020] [Indexed: 01/19/2023]
Abstract
The novel green magnetic phosphonated-functionalized sporopollenin nanocomposite (MPSP-nanocomposite) was synthetized and used for stir bar sorptive dispersive microextraction (SBSDME) of melamine in milk and milk-based food products. TEM, SEM-EDX, FT-IR, VSM techniques were applied for characterization of MPSP-nanocomposite. The influential parameters including pH, extraction time, stirring rate, elution solvent type and volume, sample volume, desorption time, and ionic strength were studied and at optimum conditions, the linear range of 1-500 (µg L-1), the LOD (S/N = 3) of 0.30 (µg L-1), and the LOQ (S/N = 10) of 0.95 (µg L-1) were achieved. The intra-day precision values (RSD (%), n = 7) of 3.5% for the melamine concentration of 25 (µg L-1). The relative recoveries of 95.8% to 99.6% were acquired for the real samples which confirmed that the proposed method could be successfully utilized in complex matrixes with high matrix effects.
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Affiliation(s)
- Mahboube Shirani
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, P. O. Box 7867161167, Iran
| | - Muhammad Afzal Kamboh
- Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad, Sindh, Pakistan
| | - Behrouz Akbari-Adergani
- Food and Drug Laboratory Research Center, Food and Drug Administration, Ministry of Health and Medical Education Tehran Islamic Republic of Iran, Iran.
| | - Ali Akbari
- Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, P. O. Box 7867161167, Iran
| | - Sadaf Sadia Arain
- Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad, Sindh, Pakistan
| | - Hamid Rashidi Nodeh
- Department of Food Science and Technology, Faculty of Food Industry and Agriculture, Standard Research Institute, Karaj, Iran
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15
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El-Shahawi M, Khraibah N. Development of a highly sensitive voltametric sensor for trace determination of melamine residues in milk and water samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Abdolmohammad-Zadeh H, Zamani A, Shamsi Z. A simple magnetic solid-phase extraction method based on magnetite/graphene oxide nanocomposite for pre-concentration and determination of melamine by high-performance liquid chromatography. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:9826-9834. [PMID: 31927730 DOI: 10.1007/s11356-020-07681-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
In this study, a clean and simple magnetic solid-phase extraction (MSPE) procedure using magnetite/graphene oxide nanocomposite as an adsorbent was developed for melamine separation and preconcentration from water and dairy products. After synthesis and characterization of the adsorbent, adsorption isotherms and kinetic studies of the adsorption were carried out. The analyte quantification was performed by reversed phase high-performance liquid chromatography after elution of the preconcentrated analytes from the adsorbent surface. Several factors affecting the extraction/preconcentration procedure such as pH, adsorbent amount, extraction time, sample volume, type, and volume of eluent were investigated. The optimizing of some important parameters was assessed by employing a response surface method. The constructed calibration curve in the optimized conditions is linear in the working range of 0.10-100 μg L-1 with a correlation coefficient of 0.9999. The detection limit, limit of quantification, and enrichment factor are 0.03 μg L-1, 0.10 μg L-1, and 500, respectively. The melamine relative recoveries from different real samples are between 97.20 and 103.10% with relative standard deviations of 1.07-4.98%.
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Affiliation(s)
- Hossein Abdolmohammad-Zadeh
- Analytical Spectroscopy Research Lab., Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, 35 Km Tabriz-Marageh Road, Tabriz, 53714-161, Iran.
| | - Abbasali Zamani
- Department of Environmental Science, Faculty of Sciences, University of Zanjan, Zanjan, 45371-38791, Iran
| | - Zahra Shamsi
- Analytical Spectroscopy Research Lab., Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, 35 Km Tabriz-Marageh Road, Tabriz, 53714-161, Iran
- Department of Environmental Science, Faculty of Sciences, University of Zanjan, Zanjan, 45371-38791, Iran
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17
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A highly sensitive competitive immunosensor based on branched polyethyleneimine functionalized reduced graphene oxide and gold nanoparticles modified electrode for detection of melamine. Food Chem 2020; 304:125397. [DOI: 10.1016/j.foodchem.2019.125397] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/06/2019] [Accepted: 08/18/2019] [Indexed: 12/25/2022]
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18
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Wang HB, Bai HY, Mao AL, Gan T, Liu YM. Poly(adenine)-templated fluorescent Au nanoclusters for the rapid and sensitive detection of melamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 219:375-381. [PMID: 31059889 DOI: 10.1016/j.saa.2019.04.075] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/10/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
A rapid and label-free fluorescence sensing strategy has been established for the sensitive determination of melamine (MA) on the basis of poly(adenine) (poly (A))-templated Au nanoclusters (AuNCs). The poly(A)-templated AuNCs possessed excellent luminescence and photo-stability. In the presence of Hg2+, the luminescence of AuNCs was quenched by Hg2+ through the metallophilic interactions between Au+ and Hg2+. When melamine was introduced, the fluorescence intensity of sensing system could be recovered. There was a greater coordination interaction between Hg2+ and melamine, which blocked the Hg2+-mediated fluorescence quenching of AuNCs. The assay allowed sensitive determination of melamine with a linear detection range from 50 nM to 100 μM. The limit of detection was as low as 16.6 nM. Furthermore, the label-free strategy was successfully employed for the detection of melamine concentration in real samples.
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Affiliation(s)
- Hai-Bo Wang
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, PR China.
| | - Hong-Yu Bai
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, PR China
| | - An-Li Mao
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, PR China
| | - Tian Gan
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, PR China.
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, PR China
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19
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Ma L, Tong W, DU L, Huang S, Wei J, Xiao D. Optimization of an Aqueous Two-Phase System for the Determination of Trace Ethyl Carbamate in Red Wine. J Food Prot 2019; 82:1377-1383. [PMID: 31335183 DOI: 10.4315/0362-028x.jfp-18-594] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, a novel method using gas chromatography-mass spectrometry coupled with ethanol and K2HPO4 aqueous two-phase system (ATPS) was established for the quantitative determination of trace ethyl carbamate (EC) in red wine. The parameters that influence EC extraction in an aqueous two-phase system, including extraction temperature, time, pH, and ethanol concentration, were optimized. Method validation results indicated that the regression coefficient of the proposed method was 0.9979 in the linear range of 10 to 100 μg/L, and the limits of detection and quantification were 2.8 and 9.2 μg/L, respectively. Four red wine samples made from different grape varieties were processed by the proposed method for the repeatability verification, and EC concentrations were between 15.8 and 37.3 μg/L, with the relative standard deviations ranging from 3.5 to 6.6%. Results of the precision assay showed the average recovery of EC in red wine at 95.4 to 107.1%, with the relative standard deviations ranging from 1.4 to 6.2%. This method proved to be simple and reliable for quantitative determination of trace EC in red wine and would give guidance for quality monitoring of various red wines in the production process.
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Affiliation(s)
- Lijuan Ma
- 1 Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.,2 Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.,3 State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Wenzhe Tong
- 2 Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Liping DU
- 1 Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.,2 Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.,3 State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Shiyong Huang
- 2 Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Jinyan Wei
- 2 Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Dongguang Xiao
- 1 Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.,2 Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.,4 Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China (ORCID: https://orcid.org/0000-0003-2043-9961 [L.M.])
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20
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Facile detection of melamine by a FAM-aptamer-G-quadruplex construct. Anal Bioanal Chem 2019; 411:2521-2530. [PMID: 30863884 DOI: 10.1007/s00216-019-01688-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/26/2019] [Accepted: 02/12/2019] [Indexed: 12/19/2022]
Abstract
The development of a novel method for melamine detection that uses a FAM-aptamer-G-quadruplex construct due to the efficient quenching ability of an aptamer-linked G-quadruplex is reported herein. The construct, which is labeled with the fluorescent dye 6-carboxyfluorescein (FAM), consists of two parts: a melamine-binding aptamer and a G-rich sequence that can form a G-quadruplex structure. Because of the specific recognition of melamine by the T-rich aptamer, this aptamer folds into a hairpin structure in the presence of melamine, which draws the G-quadruplex closer to the FAM fluorophore, leading to the quenching of the fluorescence of FAM. Thus, a highly sensitive and selective fluorescence strategy for assaying melamine was established. Under optimal conditions, the fluorescence quenching is proportional to the concentration of melamine within the range 10-90 nM, and the method has a detection limit of 6.32 nM. Further application of the method to plastic cup samples suggested that it permitted recoveries of between 97.15% ± 1.02 and 101.92% ± 2.07. The detected amounts of melamine spiked into the plastic cup samples and the corresponding amounts measured by HPLC were in good accordance, indicating that this fluorescent method is reliable and practical. Owing to its high sensitivity, excellent selectivity, and convenient procedure, this strategy represents a promising alternative method of melamine screening. Graphical abstract.
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21
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Karunathilaka SR, Yakes BJ, He K, Brückner L, Mossoba MM. First use of handheld Raman spectroscopic devices and on-board chemometric analysis for the detection of milk powder adulteration. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.04.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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22
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Zhou Q, Tan XC, Guo XJ, Huang YJ, Zhai HY. Preparation and characterization of molecularly imprinted solid-phase extraction column coupled with high-performance liquid chromatography for selective determination of melamine. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180750. [PMID: 30839739 PMCID: PMC6170576 DOI: 10.1098/rsos.180750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/15/2018] [Indexed: 06/09/2023]
Abstract
We synthesized a selective molecularly imprinted solid-phase extraction (MIP-SPE) column and established an extraction and enrichment method using this MIP-SPE column. By coupling with HPLC, we developed a new method to detect trace amounts of melamine in eggs. The MIP-SPE column was synthesized by in situ thermal-initiated polymerization using melamine as the template, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker and azodiisobutyronitrile as the initiator. HPLC was used to evaluate the identification and enrichment capability of the MIP-SPE column and for the measurement of melamine in the sample. The melamine concentration exhibited an excellent linear relationship in the range of 0.1-25.0 µg ml-1 (r = 0.9983). The identification capability of the MIP-SPE column was apparently superior to that of the non-imprinted polymer solid-phase extraction column; an average enrichment factor of 46.8-fold (RSD = 3.5%) was obtained for 0.4 µg ml-1 melamine by the MIP-SPE column. When the MIP-SPE HPLC method was applied to the detection of melamine in eggs, an average recovery rate of 93.5-102.0% (RSD = 3.6-4.9%) and a limit of detection of 0.05 µg kg-1 were obtained. This method is simple, fast and cost-effective; thus, it can greatly simplify the pre-treatment of complex samples and can be used in the detection of residual melamine in eggs and other products.
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Affiliation(s)
- Q. Zhou
- Department of Pharmacy, GuangDong Pharmaceutical University, GuangZhou 510006, People's Republic of China
| | - X. C. Tan
- School of Chemistry and Chemical Engineering, GuangXi University for Nationalities, Nanning 530000, People's Republic of China
| | - X. J. Guo
- Department of Pharmacy, GuangDong Pharmaceutical University, GuangZhou 510006, People's Republic of China
| | - Y. J. Huang
- Department of Pharmacy, GuangDong Pharmaceutical University, GuangZhou 510006, People's Republic of China
| | - H. Y. Zhai
- Department of Pharmacy, GuangDong Pharmaceutical University, GuangZhou 510006, People's Republic of China
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23
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Karunathilaka SR, Yakes BJ, He K, Chung JK, Mossoba M. Non-targeted NIR spectroscopy and SIMCA classification for commercial milk powder authentication: A study using eleven potential adulterants. Heliyon 2018; 4:e00806. [PMID: 30258995 PMCID: PMC6151857 DOI: 10.1016/j.heliyon.2018.e00806] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 09/13/2018] [Indexed: 12/25/2022] Open
Abstract
A non-targeted detection method using near-infrared (NIR) spectroscopy combined with chemometric modeling was developed for the rapid screening of commercial milk powder (MP) products as authentic or potentially mixed with known and unknown adulterants. Two benchtop FT-NIR spectrometers and a handheld NIR device were evaluated for model development. The performance of SIMCA classification models was then validated using an independent test set of genuine MP samples and a set of gravimetrically prepared mixtures consisting of MPs spiked with each of eleven potential adulterants. Classification models yielded 100% sensitivities for the benchtop spectrometers. Better specificity, which was influenced by the nature of the adulterant, was obtained for the benchtop FT-NIR instruments than for the handheld NIR device, which suffered from lower spectral resolution and a narrower spectral range. FT-NIR spectroscopy and SIMCA classification models show promise for the rapid screening of commercial MPs for the detection of potential adulteration.
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Affiliation(s)
- Sanjeewa R. Karunathilaka
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, 5001 Campus Drive, College Park, MD 20740, USA
| | - Betsy Jean Yakes
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, 5001 Campus Drive, College Park, MD 20740, USA
| | - Keqin He
- University of Maryland, Joint Institute for Food Safety and Applied Nutrition, 2134 Patapsco Building, College Park, MD 20742, USA
| | - Jin Kyu Chung
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, 5001 Campus Drive, College Park, MD 20740, USA
| | - Magdi Mossoba
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, 5001 Campus Drive, College Park, MD 20740, USA
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24
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Magnetic molecular imprinting polymers based on three-dimensional (3D) graphene-carbon nanotube hybrid composites for analysis of melamine in milk powder. Food Chem 2018; 255:226-234. [DOI: 10.1016/j.foodchem.2018.02.078] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 01/27/2018] [Accepted: 02/13/2018] [Indexed: 01/07/2023]
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25
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Development of ELISA-Like Fluorescence Assay for Melamine Detection Based on Magnetic Dummy Molecularly Imprinted Polymers. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8040560] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Gao N, Huang P, Wu F. Colorimetric detection of melamine in milk based on Triton X-100 modified gold nanoparticles and its paper-based application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 192:174-180. [PMID: 29136582 DOI: 10.1016/j.saa.2017.11.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
In this study, we have developed a method for rapid, highly efficient and selective detection of melamine. The negatively charged citrate ions form an electrostatic layer on gold nanoparticles (AuNPs) and keep the NPs dispersed and stable. When citrate-capped AuNPs were further modified with Triton X-100, it stabilized the AuNPs against the conditions of high ionic strength and a broad pH range. However, the addition of melamine caused the destabilization and aggregation of NPs. This may be attributed to the interaction between melamine and the AuNPs through the ligand exchange with citrate ions on the surface of AuNPs leading Triton X-100 to be removed. As a result, the AuNPs were unstable, resulting in the aggregation. The aggregation induced a wine red-to-blue color change, and a new absorption peak around 630nm appeared. Triton X-100-AuNPs could selectively detect melamine at the concentration as low as 5.1nM. This probe was successfully applied to detect melamine in milk. Furthermore, paper-based quantitative detection system using this colorimetric probe was also demonstrated by integrating with a smartphone.
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Affiliation(s)
- Nan Gao
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Pengcheng Huang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Fangying Wu
- College of Chemistry, Nanchang University, Nanchang 330031, China.
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27
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Jiang H, Zhang M, Bhandari B, Adhikari B. Application of electronic tongue for fresh foods quality evaluation: A review. FOOD REVIEWS INTERNATIONAL 2018. [DOI: 10.1080/87559129.2018.1424184] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hongyao Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Min Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University,Wuxi, Jiangsu, China
| | - Bhesh Bhandari
- School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD, Australia
| | - Benu Adhikari
- School of Applied Sciences, RMIT University, Melbourne, VIC, Australia
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28
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Rahman MM, Ahmed J. Cd-doped Sb 2O 4 nanostructures modified glassy carbon electrode for efficient detection of melamine by electrochemical approach. Biosens Bioelectron 2017; 102:631-636. [PMID: 29248717 DOI: 10.1016/j.bios.2017.12.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/25/2017] [Accepted: 12/05/2017] [Indexed: 11/24/2022]
Abstract
Cadmium doped antimony oxide (Cd-doped Sb2O4) nanostructures (CAO-NSs) were synthesized by a facile hydrothermal method in alkaline phase at low temperature to detect the melamine from aqueous solution. The calcined CAO-NSs were characterized systematically by FE-SEM, EDS, UV/Vis., FTIR spectroscopy, powder XRD, and XPS techniques. The glassy carbon electrode (GCE) was modified with the CAO-NSs and sensing performance towards the selective melamine was explored by the electrochemical approach in phosphate buffer solution. The melamine undergoes a reduction reaction in the presence of CAO-NSs/GCE in PBS. The CAO-NSs/GCE attained the higher sensitivity (3.153μAμM-1cm-2) for a wide ranges of concentration (LDR: 0.05nM-0.5mM), an ultra-low limit of detection (LOD: 14.0 ± 0.05p.M.; S/N = 3), long-term stability, excellent repeatability, and reproducibility. This method might represent an efficient way of sensitive sensor development for the toxic melamine and their derivatives for the safety of biomedical and health care fields in broad scales.
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Affiliation(s)
- Mohammed M Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
| | - Jahir Ahmed
- Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3100, Bangladesh
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29
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Altunay N, Demir Ö, Gürkan R. Ionic liquid based ion-pairing microextraction combined with spectrophotometry for preconcentration and quantitation of melamine in milk and milk-based products. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.08.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Melamine Detection in Milk and Dairy Products: Traditional Analytical Methods and Recent Developments. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0984-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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31
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Sensitive determination of melamine in milk and powdered infant formula samples by high-performance liquid chromatography using dabsyl chloride derivatization followed by dispersive liquid–liquid microextraction. Food Chem 2017; 221:139-146. [DOI: 10.1016/j.foodchem.2016.10.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 09/08/2016] [Accepted: 10/02/2016] [Indexed: 11/21/2022]
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32
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Nascimento CF, Santos PM, Pereira-Filho ER, Rocha FR. Recent advances on determination of milk adulterants. Food Chem 2017; 221:1232-1244. [DOI: 10.1016/j.foodchem.2016.11.034] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 10/07/2016] [Accepted: 11/07/2016] [Indexed: 12/16/2022]
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33
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Chen H, Tan C, Lin Z, Wu T. Detection of melamine adulteration in milk by near-infrared spectroscopy and one-class partial least squares. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:832-836. [PMID: 27816741 DOI: 10.1016/j.saa.2016.10.051] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/24/2016] [Accepted: 10/26/2016] [Indexed: 06/06/2023]
Abstract
Melamine is a noxious nitrogen-rich substance and has been illegally adulterated in milk to boost the protein content. The present work investigated the feasibility of using near-infrared (NIR) spectrum and one-class partial least squares (OCPLS) for detecting the adulteration of melamine. A total of 102 liquor milks were prepared for experiment. A special variable importance (VI) index was defined to select 40 most significant variables. Thirty-two pure milk samples constitute the training set for constructing a one-class model and the other samples were used for the test set. The results showed that on the independent test set, it can achieve an acceptable performance, i.e., the total accuracy of 89%, the sensitivity of 90%, and the specificity of 88%. It seems that the combination of NIR spectroscopy and OCPLS classifier can serve as a potential tool for rapid and on-site screening melamine in milk samples.
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Affiliation(s)
- Hui Chen
- Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan 644000, China; Hospital, Yibin University, Yibin, Sichuan 644000, China
| | - Chao Tan
- Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan 644000, China.
| | - Zan Lin
- Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan 644000, China; The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Tong Wu
- Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan 644000, China
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34
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Yang X, Jia Z, Tan Z, Xu H, Luo N, Liao X. Determination of melamine in infant formulas by fluorescence quenching based on the functionalized Au nanoclusters. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.05.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Wang T, Ma J, Chen Y, Li Y, Zhang L, Zhang Y. Analysis of melamine and analogs in complex matrices: Advances and trends. J Sep Sci 2016; 40:170-182. [DOI: 10.1002/jssc.201600854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/20/2016] [Accepted: 09/20/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Tingting Wang
- School of Materials and Chemical Engineering/School of safety engineering; Ningbo University of Technology; Ningbo China
| | - Junfeng Ma
- Department of Biological Chemistry; The Johns Hopkins University School of Medicine; Baltimore MD USA
| | - Yihui Chen
- Xiangshan Entry-Exit Inspection and Quarantine Bureau; Xiangshan China
| | - Ying Li
- School of Materials and Chemical Engineering/School of safety engineering; Ningbo University of Technology; Ningbo China
| | - Lihua Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
| | - Yukui Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
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36
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Zhang K, Liu X. Reprint of “Mixed-mode chromatography in pharmaceutical and biopharmaceutical applications”. J Pharm Biomed Anal 2016; 130:19-34. [DOI: 10.1016/j.jpba.2016.09.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 05/04/2016] [Accepted: 05/05/2016] [Indexed: 01/31/2023]
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37
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Li R, Yang G, Yang J, Han J, Liu J, Huang M. Determination of melamine in milk using surface plasma effect of aggregated Au@SiO2 nanoparticles by SERS technique. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.03.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Lu Y, Hu F, Miyakawa T, Tanokura M. Complex Mixture Analysis of Organic Compounds in Yogurt by NMR Spectroscopy. Metabolites 2016; 6:metabo6020019. [PMID: 27322339 PMCID: PMC4931550 DOI: 10.3390/metabo6020019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/08/2016] [Accepted: 06/13/2016] [Indexed: 11/16/2022] Open
Abstract
NMR measurements do not require separation and chemical modification of samples and therefore rapidly and directly provide non-targeted information on chemical components in complex mixtures. In this study, one-dimensional (¹H, (13)C, and (31)P) and two-dimensional (¹H-(13)C and ¹H-(31)P) NMR spectroscopy were conducted to analyze yogurt without any pretreatment. ¹H, (13)C, and (31)P NMR signals were assigned to 10 types of compounds. The signals of α/β-lactose and α/β-galactose were separately observed in the ¹H NMR spectra. In addition, the signals from the acyl chains of milk fats were also successfully identified but overlapped with many other signals. Quantitative difference spectra were obtained by subtracting the diffusion ordered spectroscopy (DOSY) spectra from the quantitative ¹H NMR spectra. This method allowed us to eliminate interference on the overlaps; therefore, the correct intensities of signals overlapped with those from the acyl chains of milk fat could be determined directly without separation. Moreover, the ¹H-(31)P HMBC spectra revealed for the first time that N-acetyl-d-glucosamine-1-phosphate is contained in yogurt.
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Affiliation(s)
- Yi Lu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Fangyu Hu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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39
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Mixed-mode chromatography in pharmaceutical and biopharmaceutical applications. J Pharm Biomed Anal 2016; 128:73-88. [PMID: 27236100 DOI: 10.1016/j.jpba.2016.05.007] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 05/04/2016] [Accepted: 05/05/2016] [Indexed: 01/19/2023]
Abstract
Mixed-mode chromatography (MMC) is a fast growing area in recent years, thanks to the new generation of mixed-mode stationary phases and better understanding of multimode interactions. MMC has superior applications in the separation of compounds that are not retained or not well resolved by typical reversed-phase LC methods, especially for polar and charged molecules. Due to the multiple retention modes that a single MMC column can offer, often MMC provides additional dimension to a separation method by adjusting the mobile phase conditions. Mixed-mode media is also an effective way to clean up complex sample matrices for purification purposes or for sensitive detection of trace amounts of analytes. In this article, we discuss mixed-mode stationary phases and separation mechanisms and review recent advances in pharmaceutical and biopharmaceutical applications including the analysis and/or purification of counterions, small molecule drugs, impurities, formulation excipients, peptides and proteins.
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40
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Lu Y, Xia Y, Liu G, Pan M, Li M, Lee NA, Wang S. A Review of Methods for Detecting Melamine in Food Samples. Crit Rev Anal Chem 2016; 47:51-66. [DOI: 10.1080/10408347.2016.1176889] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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41
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Fashi A, Yaftian MR, Zamani A. Determination of melamine in dairy products using electromembrane–LPME followed by HPLC. Food Chem 2015; 188:92-8. [DOI: 10.1016/j.foodchem.2015.04.132] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 04/23/2015] [Accepted: 04/28/2015] [Indexed: 11/16/2022]
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42
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Yang EY, Shin HS. Simultaneous and quantitative determination of anion biocides in soil by liquid chromatography-tandem mass spectrometry. ANALYTICAL SCIENCE AND TECHNOLOGY 2015. [DOI: 10.5806/ast.2015.28.5.317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Rapid detection of melamine in milk liquid and powder by surface-enhanced Raman scattering substrate array. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.03.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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44
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Li G, Zhong Q, Wang D, Zhang X, Gao H, Shen S. Determination and formation of Ethyl Carbamate in Chinese spirits. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.03.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Demirhan BE, Demirhan B, Kara HS. Room-temperature phosphorescence determination of melamine in dairy products using l-cysteine-capped Mn-doped zinc sulfide (ZnS) quantum dots. J Dairy Sci 2015; 98:2992-3000. [DOI: 10.3168/jds.2014-9221] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 01/30/2015] [Indexed: 11/19/2022]
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46
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Fan Y, Ma X, Li Z, Chen M. Fast Derivatization Followed by Gas Chromatography–Mass Spectrometry for Simultaneous Detection of Melamine, Ammeline, Ammelide, and Cyanuric Acid in Fish and Shrimp. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0171-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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A novel dispersive micro solid phase extraction using PCX as the sorbent for the determination of melamine and cyromazine in milk and milk powder by UHPLC-HRMS/MS. Talanta 2015; 134:144-152. [DOI: 10.1016/j.talanta.2014.10.036] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/13/2014] [Accepted: 10/16/2014] [Indexed: 11/22/2022]
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Wang H, Chen D, Yu L, Chang M, Ci L. One-step, room temperature, colorimetric melamine sensing using an in-situ formation of silver nanoparticles through modified Tollens process. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:281-285. [PMID: 25222324 DOI: 10.1016/j.saa.2014.08.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 04/12/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
We have developed a rapid, sensitive, one-step, and selective colorimetric detection method for melamine (MEL) in milk powder based upon an in-situ formation of silver nanoparticles (AgNPs) through modified Tollens process at room temperature. The triazine ring N atoms of MEL molecule were strategically designed to complex the Ag(+) through electron donor-acceptor interaction. During the AgNPs formation procedure, the MEL molecule, which has been covalently bonded with the Ag(+) ions, was adsorbed to the surface of as-prepared AgNPs, resulting in the aggregation of the adjacent AgNPs with detectable decreases of absorption signal. The concentration of MEL can be determined with the naked eye or a UV-vis spectrometer at which the yellow-to-brown color change associated with aggregate enhancement takes place. This method enables rapid (less than 30 min) and sensitive (limit of detection, LOD, 10 nM) detection, and it was also able to discriminate MEL from sixteen other milk relevant coexisting compounds. This assay does not utilize organic cosolvents, enzymatic reactions, light-sensitive dye molecules, lengthy protocols, or sophisticated instrumentation thereby overcoming some of the limitations of conventional methods.
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Affiliation(s)
- Huiying Wang
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China.
| | - Dinglong Chen
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China; School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Longquan Yu
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
| | - Ming Chang
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
| | - Lijie Ci
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
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A fast and environmental friendly analytical procedure for determination of melamine in milk exploiting fluorescence quenching. Food Chem 2015; 169:314-9. [DOI: 10.1016/j.foodchem.2014.07.144] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 07/02/2014] [Accepted: 07/30/2014] [Indexed: 11/17/2022]
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50
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Domingo EDC, Tireli AA, Nunes CA, Batista AV, Guerreiro MC, Pinto SM. Rapid extraction of melamine in powdered milk for direct electrospray ionization tandem mass spectrometry analysis. Talanta 2015; 132:535-40. [DOI: 10.1016/j.talanta.2014.10.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 09/25/2014] [Accepted: 10/01/2014] [Indexed: 10/24/2022]
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