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Dzuman Z, Zachariasova M, Veprikova Z, Godula M, Hajslova J. Multi-analyte high performance liquid chromatography coupled to high resolution tandem mass spectrometry method for control of pesticide residues, mycotoxins, and pyrrolizidine alkaloids. Anal Chim Acta 2015; 863:29-40. [PMID: 25732310 DOI: 10.1016/j.aca.2015.01.021] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/12/2015] [Accepted: 01/14/2015] [Indexed: 10/24/2022]
Abstract
A new reliable and highly sensitive method based on high performance liquid chromatographic (HPLC) separation and high resolution tandem mass spectrometric detection (HRMS/MS) has been developed and validated for determination of 323 pesticide residues, 55 mycotoxins, and 11 plant toxins represented by pyrrolizidine alkaloids. The method was validated for three matrices, leek, wheat, and tea differing in nature/amount of co-extracts that may cause various matrix effects. For target analytes isolation, optimized QuEChERS-based (quick, easy, cheap, effective, rugged, and safe) extraction procedure was employed. Spectral HRMS/MS library has been established providing an entire spectrum of fragment ions for each analyte, which allows unbiased identification and confirmation of target compounds. The limits of quantification (LOQs) of target analytes were below 10 μg kg(-1) for 82%, 81%, and 61% for matrices leek, wheat, and tea, respectively. Recoveries were in the acceptable range (70-120%) according to SANCO/12571/2013 for most of target analytes, except for highly polar 'masked' mycotoxin deoxynivalenol-3-glucoside with recoveries 35%, 47%, and 42% for matrices leek, wheat, and tea, respectively. The linearities of calibration curves expressed as coefficients of determination were in the range of 0.9661-1.000, and repeatabilities expressed as relative standard deviations (RSDs) at LOQs lied in the range of 0.25-13.51%. The trueness of the method was verified using several certified reference materials (CRMs) and proficiency test samples.
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Affiliation(s)
- Zbynek Dzuman
- University of Chemistry and Technology, Prague, Technicka 3, Prague 6, 16628, Czech Republic
| | - Milena Zachariasova
- University of Chemistry and Technology, Prague, Technicka 3, Prague 6, 16628, Czech Republic.
| | - Zdenka Veprikova
- University of Chemistry and Technology, Prague, Technicka 3, Prague 6, 16628, Czech Republic
| | - Michal Godula
- Thermo Scientific, Slunecna 27, Prague 10, 10000, Czech Republic
| | - Jana Hajslova
- University of Chemistry and Technology, Prague, Technicka 3, Prague 6, 16628, Czech Republic
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102
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Biosynthesis of seven carbon-13 labeled Alternaria toxins including altertoxins, alternariol, and alternariol methyl ether, and their application to a multiple stable isotope dilution assay. Anal Bioanal Chem 2015; 407:1357-69. [PMID: 25577349 DOI: 10.1007/s00216-014-8307-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/13/2014] [Accepted: 10/30/2014] [Indexed: 11/27/2022]
Abstract
An unprecedented stable isotope dilution assay for the genotoxic altertoxins along with exposure data of consumers is presented to enable a first risk assessment of these Alternaria toxins in foods. Altertoxins were produced as the most abundant Alternaria toxins in a modified Czapek-Dox medium with a low level of glucose as the carbon source and ammonium sulfate as the sole nitrogen source. Labeled altertoxins were synthesized in the same way using [(13)C6]glucose. Moreover, labeled alternariol, alternariol methyl ether, altenuene, and alternuisol were biosynthesized in another modified medium containing [(13)C6]glucose and sodium [(13)C2]acetate. A stable isotope dilution LC-MS/MS method was developed and used for food analysis. For altertoxin I, altertoxin II, alterperylenol, alternariol, and alternariol methyl ether, the limits of detection ranged from 0.09 to 0.53 μg kg(-1). The inter-/intra-day (n = 3 × 6) relative standard deviations of the method were below 13%, and the recoveries ranged between 96 and 109%. Among the various commercial food samples, some of the organic whole grains revealed low-level contamination with altertoxin I and alterperylenol, and paprika powder, which was heavily loaded with alternariol, alternariol methyl ether, and tentoxin, showed higher contamination level of altertoxin I and alterperylenol. Altertoxin II and III and stemphyltoxin III were not detectable. In addition, if the food was contaminated with altertoxins, it was likely to be co-contaminated with the other Alternaria toxins, but not necessarily vice versa. Maximum concentrations of altertoxin I and alterperylenol were detected in sorghum feed samples containing 43 and 58 μg kg(-1), respectively. This was significantly higher than that in the measured food samples.
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103
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Frenich AG, Romero-González R, del Mar Aguilera-Luiz M. Comprehensive analysis of toxics (pesticides, veterinary drugs and mycotoxins) in food by UHPLC-MS. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.06.020] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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104
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Modified QuEChERS method combined with ultra-high performance liquid chromatography tandem mass spectrometry for the simultaneous determination of 26 mycotoxins in sesame butter. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 970:68-76. [DOI: 10.1016/j.jchromb.2014.06.033] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 05/16/2014] [Accepted: 06/29/2014] [Indexed: 11/23/2022]
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105
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Taevernier L, Veryser L, Vandercruyssen K, D’Hondt M, Vansteelandt S, De Saeger S, De Spiegeleer B. UHPLC-MS/MS method for the determination of the cyclic depsipeptide mycotoxins beauvericin and enniatins in in vitro transdermal experiments. J Pharm Biomed Anal 2014; 100:50-57. [DOI: 10.1016/j.jpba.2014.07.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/16/2014] [Accepted: 07/19/2014] [Indexed: 01/20/2023]
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106
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Walravens J, Mikula H, Rychlik M, Asam S, Ediage EN, Di Mavungu JD, Van Landschoot A, Vanhaecke L, De Saeger S. Development and validation of an ultra-high-performance liquid chromatography tandem mass spectrometric method for the simultaneous determination of free and conjugated Alternaria toxins in cereal-based foodstuffs. J Chromatogr A 2014; 1372C:91-101. [PMID: 25465007 DOI: 10.1016/j.chroma.2014.10.083] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/14/2014] [Accepted: 10/25/2014] [Indexed: 11/24/2022]
Abstract
A UPLC-ESI+/--MS/MS method for the simultaneous determination of free (alternariol, alternariol monomethyl ether, altenuene, tenuazonic acid, tentoxin, altertoxin-I) and conjugated (sulfates and glucosides of alternariol and alternariol monomethyl ether) Alternaria toxins in cereals and cereal products (rice, oat flakes and barley) was developed. Optimization of the sample preparation and extraction methodology was achieved through experimental design, using full factorial design for extraction solvent composition optimization and fractional factorial design to identify the critical factors in the sample preparation protocol, which were in turn subjected to optimization. Final extracts were analysed using an Waters Acquity UPLC system coupled to a Quattro Premier XE mass spectrometer equipped with an electrospray interface operated in both positive and negative ionization mode. Chromatographic separation was achieved using an Acquity UPLC HSS T3 column, and the applied gradient elution programme allowed for the simultaneous determination of 10 Alternaria toxins in a one-step chromatographic run with a total run time of only 7min. Subsequently, the method, applying isotopically labelled internal standards ([2H4]-alternariol monomethyl ether and [13C6,15N]-tenuazonic acid), was validated for several parameters such as linearity, apparent recovery, limit of detection, limit of quantification, precision, measurement uncertainty and specificity (in agreement with the criteria mentioned in Commission Regulation No. 401/2006/EC and Commission Decision No. 2002/657/EC). During validation, quality of the bioanalytical data was improved by counteracting the observed heteroscedasticity through the application of weighted least squares linear regression (WLSLR). Finally, 24 commercially available cereal-based foodstuffs were subjected to analysis, revealing the presence of tenuazonic acid in both rice and oat flake samples (<LOQ - 68±7μgkg-1) and tentoxin in rice samples (<LOQ - 10.9±2.0μgkg-1).
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Affiliation(s)
- Jeroen Walravens
- Department of Bioanalysis, Laboratory of Food Analysis, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| | - Hannes Mikula
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria
| | - Michael Rychlik
- BIOANALYTIK Weihenstephan, ZIEL Research Center for Nutrition and Food Sciences, Technische Universität München, Alte Akademie 10, 85354 Freising, Germany
| | - Stefan Asam
- Chair of Analytical Food Chemistry, Technische Universität München, Alte Akademie 10, 85354 Freising, Germany
| | - Emmanuel Njumbe Ediage
- Department of Bioanalysis, Laboratory of Food Analysis, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - José Diana Di Mavungu
- Department of Bioanalysis, Laboratory of Food Analysis, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Anita Van Landschoot
- Faculty of Bioscience Engineering, Laboratory of Biochemistry and Brewing, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium
| | - Lynn Vanhaecke
- Department of Veterinary Public Health and Food Safety, Laboratory of Chemical Analysis, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Sarah De Saeger
- Department of Bioanalysis, Laboratory of Food Analysis, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
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107
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Malachová A, Sulyok M, Beltrán E, Berthiller F, Krska R. Optimization and validation of a quantitative liquid chromatography–tandem mass spectrometric method covering 295 bacterial and fungal metabolites including all regulated mycotoxins in four model food matrices. J Chromatogr A 2014; 1362:145-56. [DOI: 10.1016/j.chroma.2014.08.037] [Citation(s) in RCA: 323] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 07/11/2014] [Accepted: 08/08/2014] [Indexed: 11/28/2022]
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108
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Biancardi A, Dall’Asta C. A simple and reliable liquid chromatography-tandem mass spectrometry method for the determination of aflatoxin B1in feed. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:1736-43. [DOI: 10.1080/19440049.2014.955535] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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109
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Fernandes PJ, Barros N, Santo JL, Câmara JS. High-Throughput Analytical Strategy Based on Modified QuEChERS Extraction and Dispersive Solid-Phase Extraction Clean-up Followed by Liquid Chromatography-Triple-Quadrupole Tandem Mass Spectrometry for Quantification of Multiclass Mycotoxins in Cereals. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9947-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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110
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Škrbić B, Živančev J, Godula M. Multimycotoxin analysis of crude extracts of nuts with ultra-high performance liquid chromatography/tandem mass spectrometry. J Food Compost Anal 2014. [DOI: 10.1016/j.jfca.2014.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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111
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Multiclass analysis of mycotoxins in biscuits by high performance liquid chromatography–tandem mass spectrometry. Comparison of different extraction procedures. J Chromatogr A 2014; 1343:69-78. [DOI: 10.1016/j.chroma.2014.04.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/02/2014] [Accepted: 04/04/2014] [Indexed: 11/23/2022]
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112
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Analytical Procedures for the Determination of Aflatoxin B1 in Eggs of Laying Hens Using Immunoaffinity Columns and Liquid Chromatography with Post-Column Derivatisation and Fluorescence Detection. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9836-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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113
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Cajka T, Vaclavikova M, Dzuman Z, Vaclavik L, Ovesna J, Hajslova J. Rapid LC-MS-based metabolomics method to study the Fusarium infection of barley. J Sep Sci 2014; 37:912-9. [PMID: 24515453 DOI: 10.1002/jssc.201301292] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 01/27/2014] [Accepted: 02/02/2014] [Indexed: 11/05/2022]
Abstract
Ultra high performance liquid chromatography with quadrupole/time-of-flight mass spectrometry was applied to evaluate the potential of nontarget metabolomic fingerprinting in order to distinguish Fusarium-infected and control barley samples. First, the sample extraction and instrumental conditions were optimized to obtain the broadest possible representation of polar/medium-polar compounds occurring in extracts obtained from barley grain samples. Next, metabolomic fingerprints of extracts obtained from nine barley varieties were acquired under ESI conditions in both positive and negative mode. Each variety of barley was tested in two variants: artificially infected by Fusarium culmorum at the beginning of heading and a control group (no infection). In addition, the dynamics of barley infection development was monitored using this approach. The experimental data were statistically evaluated by principal component analysis, hierarchical clustering analysis, and orthogonal partial least-squares discriminant analysis. The differentiation of barley in response to F. culmorum infection was feasible using this metabolomics-based method. Analysis in positive mode provided a higher number of molecular features as compared to that performed under negative mode setting. However, the analysis in negative mode permitted the detection of deoxynivalenol and deoxynivalenol-3-glucoside considered as resistance-indicator metabolites in barley.
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Affiliation(s)
- Tomas Cajka
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, Institute of Chemical Technology, Prague, Czech Republic
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114
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Iamanaka BT, Nakano F, Lemes DP, Ferranti LS, Taniwaki MH. Aflatoxin evaluation in ready-to-eat brazil nuts using reversed-phase liquid chromatography and post-column derivatisation. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:917-23. [PMID: 24552594 DOI: 10.1080/19440049.2014.895857] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A high-performance liquid chromatography-fluorescence (HPLC-FD) method for aflatoxin quantification in brazil nuts was developed. Samples of brazil nuts collected in Brazilian markets were extracted with methanol:water and cleaned using an immunoaffinity column. Aflatoxins were eluted with methanol and a post-column derivatisation was performed with bromine, using a Kobra Cell system. The optimised method for total aflatoxins was sensitive, with detection and quantification limits of 0.05 and 0.25 µg kg⁻¹, respectively. The method was accurate, with recovery values of 87.6%; 85.3% and 85.0% for 0.5, 5.0 and 14.6 µg kg⁻¹ spiked levels, respectively. It was shown that the method was applicable to brazil nuts. From a total of 95 brazil nut samples analysed from 21 São Paulo supermarket samples and 51 Manaus and 23 Belém street markets samples, 37.9% showed detectable levels of aflatoxins and three exceeded the recommended Codex Alimentarius limit of 10 µg kg⁻¹ for ready-to-eat brazil nuts.
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115
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Berthiller F, Burdaspal P, Crews C, Iha M, Krska R, Lattanzio V, MacDonald S, Malone R, Maragos C, Solfrizzo M, Stroka J, Whitaker T. Developments in mycotoxin analysis: an update for 2012-2013. WORLD MYCOTOXIN J 2014. [DOI: 10.3920/wmj2013.1637] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This review highlights developments in mycotoxin analysis and sampling over a period between mid-2012 and mid-2013. It covers the major mycotoxins: aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxins, patulin, trichothecenes and zearalenone. A wide range of analytical methods for mycotoxin determination in food and feed were developed last year, in particular immunochemical methods and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS)-based methods. After a section on sampling and sample preparation, due to the rapid spread and developments in the field of LC-MS/MS multimycotoxin methods, a separate section has been devoted to this area of research. It is followed by a section on mycotoxins in botanicals and spices, before continuing with the format of previous reviews in this series with dedicated sections on method developments for the individual mycotoxins.
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Affiliation(s)
- F. Berthiller
- University of Natural Resources and Life Sciences, Vienna
- Department for Agrobiotechnology (IFA-Tulln), Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - P.A. Burdaspal
- National Centre for Food, Spanish Food Safety and Nutrition Agency, Carretera de Majadahonda a Pozuelo km 5, 228220 Majadahonda, Spain
| | - C. Crews
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - M.H. Iha
- Instituto Adolfo Lutz, Laboratrio I de Ribeiro Preto, Av Dr Arnaldo 355, CEP 14085-410, Ribeiro Preto SP, Brazil
| | - R. Krska
- University of Natural Resources and Life Sciences, Vienna
- Department for Agrobiotechnology (IFA-Tulln), Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - V.M.T. Lattanzio
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/o, Bari 700126, Italy
| | - S. MacDonald
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - R.J. Malone
- Trilogy Analytical Laboratory, 870 Vossbrink Drive, Washington, MO 63090, USA
| | - C. Maragos
- USDA, ARS National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA
| | - M. Solfrizzo
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/o, Bari 700126, Italy
| | - J. Stroka
- Institute for Reference Materials and Measurements (IRMM), European Commission Joint Research Centre, Retieseweg 111, 2440 Geel, Belgium
| | - T.B. Whitaker
- Biological and Agricultural Engineering Department, N.C. State University, P.O. Box 7625, Raleigh, NC 27695-7625, USA
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116
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Arroyo-Manzanares N, Huertas-Pérez JF, Gámiz-Gracia L, García-Campaña AM. A new approach in sample treatment combined with UHPLC-MS/MS for the determination of multiclass mycotoxins in edible nuts and seeds. Talanta 2013; 115:61-7. [DOI: 10.1016/j.talanta.2013.04.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/03/2013] [Accepted: 04/08/2013] [Indexed: 10/26/2022]
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