@article{MTMT:1390067,
	title = {Comparison of extraction procedures for methylmercury determination by a SPME-GC-AFS system},
	url = {https://m2.mtmt.hu/api/publication/1390067},
	author = {Abrankó, László and Kmellar, B and Fodor, Péter},
	doi = {10.1016/j.microc.2006.04.001},
	journal-iso = {MICROCHEM J},
	journal = {MICROCHEMICAL JOURNAL},
	volume = {85},
	unique-id = {1390067},
	issn = {0026-265X},
	abstract = {In this study the comparison of three different alkaline extraction techniques carried out with methanolic NaOH followed by phenylation derivatization for the determination of methylmercury in marine fish was performed. The investigated three methods differed in the technique how the extraction assisting energy was introduced to the sample. Namely, closed vessel ultrasonic bath, an open vessel technique using an ultrasonic probe and the microwave assisted extraction procedures were characterized and optimized. Optimum values of 3 h at 75 degrees C for the ultrasonic bath, 25 min for the ultrasonic probe and 6 min at 60 W for the microwave method were obtained. All three methods were validated using the BCR-464 tuna fish certified reference material. (c) 2006 Elsevier B.V. All rights reserved.},
	year = {2007},
	eissn = {1095-9149},
	pages = {122-126},
	orcid-numbers = {Abrankó, László/0000-0002-0160-7280}
}

@article{MTMT:1148355,
	title = {Fate of selenium species in sesame seeds during simulated bakery process},
	url = {https://m2.mtmt.hu/api/publication/1148355},
	author = {Kapolna, E and Gergely, V and Dernovics, Mihály and Illes, A and Fodor, Péter},
	doi = {10.1016/j.jfoodeng.2006.01.075},
	journal-iso = {J FOOD ENG},
	journal = {JOURNAL OF FOOD ENGINEERING},
	volume = {79},
	unique-id = {1148355},
	issn = {0260-8774},
	abstract = {Hulled sesame seeds possessing relatively low selenium content were investigated for Se-speciation in order to assess the possible role of sesame seeds in Se-supplementation. As sesame seed is widely used by sprinkling over bakery products in Hungary, this study also deals with the effect of a simulated bakery process on selenium species distribution. Since fatty seeds, like sesame tend to become rancid in consequence of no appropriate or long storage time, the prospect of conversion of selenium species was under investigation. The sample was analysed for total selenium and selenium speciation by the means of a coupled technique, HPLC-UV-HG-AFS. Peculiar attention was paid to avoid the misidentification of selenium species when co-elution problems may occur by applying independent HPLC separation techniques (cation and anion-exchange chromatographies). For validating the total Se measurements, a certified reference material (BCR-422) was used. Different sample preparation techniques were applied to reach the maximal extraction efficiency. An adequate extraction efficiency (83%) was achieved, making the quantification of selenomethionine (552 ? 14 ?g SeMet as Se kg-1 in the original sesame) possible. Neither the simulated bakery process (roasting) nor forced oxidation caused any changes in the Se-species distribution of sesame seeds. ? 2006 Elsevier Ltd. All rights reserved.},
	keywords = {Selenium speciation; Sesame seed; Rancidity; Bakery process; Selenomethionine; HPLC–UV–HG–AFS},
	year = {2007},
	eissn = {1873-5770},
	pages = {494-501},
	orcid-numbers = {Dernovics, Mihály/0000-0002-7249-9328}
}

@article{MTMT:1390070,
	title = {SPME-GC-pyrolysis-AFS determination of methylmercury in marine fish products by alkaline sample preparation and aqueous phase phenylation derivatization},
	url = {https://m2.mtmt.hu/api/publication/1390070},
	author = {Jókainé Szatura, Zsuzsa and Abrankó, László and Fodor, Péter},
	doi = {10.1021/jf0501140},
	journal-iso = {J AGR FOOD CHEM},
	journal = {JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY},
	volume = {53},
	unique-id = {1390070},
	issn = {0021-8561},
	abstract = {Characterization of a cost-efficient analytical method based on alkaline sample digestion with KOH and NaOH, followed by aqueous phase phenylation derivatization with NaBPh4 and solid phase microextraction (SPME) for the determination of methylmercury in typical fish-containing food samples commercially available in Hungary, is reported. The sample preparation procedure along with the applied SPME-GC-pyrolysis-AFS system was validated by measuring certified reference materials (CRM) BCR-464, TORT-2, and a candidate CRM BCR 710. To carry out an estimation of average Hungarian methylmercury exposures via marine fish and/or fish-containing food consumption, 16 commercially available products and 3 pooled representative seafood samples of-according to a previous European survey-the three most consumed fish species in Hungary, herring, sardines, and hake, were analyzed. Methylmercury concentrations of the analyzed samples were in the range 0.016-0.137 mu g of MeHg g(-1) dry weight as Hg.},
	year = {2005},
	eissn = {1520-5118},
	pages = {5499-5505},
	orcid-numbers = {Abrankó, László/0000-0002-0160-7280}
}

@article{MTMT:1721069,
	title = {Determination of arsenic species in seafood samples from the Aegean Sea by liquid chromatography-(photo-oxidation)-hydride generation-atomic fluorescence spectrometry},
	url = {https://m2.mtmt.hu/api/publication/1721069},
	author = {Schaeffer, R and Marczika Andrásné Sörös, Csilla and Ipolyi, I and Fodor, Péter and Thomaidis, N S},
	doi = {10.1016/j.aca.2005.01.032},
	journal-iso = {ANAL CHIM ACTA},
	journal = {ANALYTICA CHIMICA ACTA},
	volume = {547},
	unique-id = {1721069},
	issn = {0003-2670},
	year = {2005},
	eissn = {1873-4324},
	pages = {109-118}
}

@article{MTMT:1148346,
	title = {Preparation, homogeneity and stability studies of a candidate LRM for Se speciation},
	url = {https://m2.mtmt.hu/api/publication/1148346},
	author = {Bodo, E T and Stefánka, Zsolt and Ipolyi, I and Marczika Andrásné Sörös, Csilla and Dernovics, Mihály and Fodor, Péter},
	doi = {10.1007/s00216-003-1941-y},
	journal-iso = {ANAL BIOANAL CHEM},
	journal = {ANALYTICAL AND BIOANALYTICAL CHEMISTRY},
	volume = {377},
	unique-id = {1148346},
	issn = {1618-2642},
	abstract = {A laboratory reference material (LRM) was prepared from Brazil nuts (Bertholletia excelsa) for quality control (QC) purposes of selenium speciation. The preparation of this LRM led through the usual operation steps applied during routine reference material production from biota samples-preparation of the raw material, homogenisation, storage design, checking of homogeneity, microbiological status and possible irradiation effects, and monitoring the species stability vs time at different storage temperatures. The selenium speciation studies to check species stability were carried out on a HPLC-UV-HG-AFS measurement set-up. Special attention was paid to the correct identification of selenium species by applying independent HPLC separation techniques (ion-pairing and anion-exchange chromatography). The concentration of selenomethionine (SeMet) and total Se content were quantified (79.9 ?g g-1 (calculated as Se) and 82.9 ?g g-1, respectively). The homogeneity and stability of this candidate reference material passed the relevant tests recommended by Bureau Communautaire de Re?fe?rence (BCR). ? Springer-Verlag 2003.},
	year = {2003},
	eissn = {1618-2650},
	pages = {32-38},
	orcid-numbers = {Dernovics, Mihály/0000-0002-7249-9328}
}

@article{MTMT:1719773,
	title = {Speciation of inorganic selenium and selenoamino acids by an HPLC-UV-HG-AFS system},
	url = {https://m2.mtmt.hu/api/publication/1719773},
	author = {Ipolyi, I and Corns, W and Stockwell, P and Fodor, Péter},
	journal-iso = {J AUTOM METHOD MANAG},
	journal = {JOURNAL OF AUTOMATED METHODS & MANAGEMENT IN CHEMISTRY},
	volume = {23},
	unique-id = {1719773},
	issn = {1463-9246},
	year = {2001},
	eissn = {1464-5068},
	pages = {167-172}
}

@article{MTMT:1466228,
	title = {Speciation of Se(IV) and the selenoamino acids by high-performance liquid chromatography-direct hydride generation-atomic fluorescence spectrometry},
	url = {https://m2.mtmt.hu/api/publication/1466228},
	author = {Ipolyi, I and Stefánka, Zsolt and Fodor, Péter},
	doi = {10.1016/S0003-2670(01)00868-6},
	journal-iso = {ANAL CHIM ACTA},
	journal = {ANALYTICA CHIMICA ACTA},
	volume = {435},
	unique-id = {1466228},
	issn = {0003-2670},
	abstract = {The speciation of selenocystine (SeCys), selenomethionine (SeMet), selenoethionine (SeEt) and Se(IV) was performed by on-line coupling of high-performance liquid chromatography (HPLC) and atomic fluorescence spectrometry (AFS) with hydride generation (HG) as high efficiency sample introduction system. Reversed-phase liquid chromatography was applied to separate the selenium species with 0.01M ammonium acetate buffer (pH=4) eluent containing 0.5% (v/v) methanol and 0.1moll-1 of DDAB. The operating conditions for chromatographic separation (gradient elution, run time) and hydride generation (concentration of HCl and NaBH4 solution, argon and hydrogen flow rates) were carefully optimized. The efficiency of hydride generation for all of the four species was measured. Detection limits (DLs) obtained for SeCys, SeMet, SeEt and Se(IV) are 18, 70, 96, and 16μgl-1, respectively. The analytical performance of the method was controlled by measuring the selenium content of spiked selenium food supplements. The range of obtained recoveries is 90-110%. © 2001 Elsevier Science B.V.},
	year = {2001},
	eissn = {1873-4324},
	pages = {367-375}
}

@article{MTMT:1148344,
	title = {Comparison of sample preparation methods based on proteolytic enzymatic processes for Se-speciation of edible mushroom (Agaricus bisporus) samples},
	url = {https://m2.mtmt.hu/api/publication/1148344},
	author = {Stefánka, Zsolt and Ipolyi, I and Dernovics, Mihály and Fodor, Péter},
	doi = {10.1016/S0039-9140(01)00398-8},
	journal-iso = {TALANTA},
	journal = {TALANTA},
	volume = {55},
	unique-id = {1148344},
	issn = {0039-9140},
	abstract = {A sequential sample preparation process was developed for the speciation analysis for Se-enriched edible mushroom, Agaricus bisporus containing 110.2 ?g of total Se/g sample. Five different sample extraction methods were compared and the most efficient method (a three-step process involving the use of water extraction and two proteolytic enzymes - pepsin and trypsin) proved to be the most suitable for extracting selenium, with an extraction efficiency of 75%. As the analogues of these enzymes play an important role in human digestion the bioavailability of the selenium present in the sample was estimated. Selenocystine (SeCys2) and Se(IV) were detected in considerable amounts (27.7 ?g Se/g sample and 46.4 ?g Se/g sample, respectively). For the quality control of peak identification a spiking procedure was developed, using a low selenium mushroom containing 4.3 ?g of total Se/g sample. During the analysis with HPLC-HHPN (Hydraulic High Pressure Nebuliser)-AFS complicated background effects and matrix problems were observed: stable and reproducible signals generated by the low selenium mushroom and the compounds used in sample preparation were detected. The three-step sample preparation method connected with the HPLC-HHPN-AFS system proved to be applicable for the speciation analysis of the Se-enriched Agaricus bisporus. ? 2001 Elsevier Science B.V. All rights reserved.},
	year = {2001},
	eissn = {1873-3573},
	pages = {437-447},
	orcid-numbers = {Dernovics, Mihály/0000-0002-7249-9328}
}

@article{MTMT:1489454,
	title = {Speciation of arsenic in coarse and fine urban aerosols using sequential extraction combined with liquid chromatography and atomic fluorescence detection},
	url = {https://m2.mtmt.hu/api/publication/1489454},
	author = {Slejkovec, Z and Salma, Imre and van Elteren, JT and Zemplen-Papp, E},
	doi = {10.1007/s002160051580},
	journal-iso = {FRESENIUS J ANAL CHEM},
	journal = {FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY},
	volume = {366},
	unique-id = {1489454},
	issn = {0937-0633},
	year = {2000},
	eissn = {1432-1130},
	pages = {830-834},
	orcid-numbers = {Salma, Imre/0000-0001-8319-1647}
}

@article{MTMT:1719683,
	title = {Selenium speciation with on-column preconcentration high-performance liquid chromatography - atomic fluorescence spectrometry using ultrasonic nebulization technique},
	url = {https://m2.mtmt.hu/api/publication/1719683},
	author = {Mester, Zoltán and Fodor, Péter},
	doi = {10.1016/S0003-2670(99)00010-0},
	journal-iso = {ANAL CHIM ACTA},
	journal = {ANALYTICA CHIMICA ACTA},
	volume = {386},
	unique-id = {1719683},
	issn = {0003-2670},
	abstract = {A system has been developed to determine two inorganic selenium species Se(IV) and Se(VI). In this novel technique liquid chromatography (LC) is coupled to an atomic fluorescence spectrometer (AFS) using an ultrasonic nebulizer (USN) as interface. The effect of hydrogen and argon gas flow rates, nebulization temperature, loop volume, pump rate and phosphate buffer conditions were investigated. A simple on-column preconcentration method was worked out. The detection limit for Se(IV) and Se(VI) using this preconcentration method are 8.6 and 30ngcm-3, respectively. Copyright (C) 1999 Elsevier Science B.V.},
	year = {1999},
	eissn = {1873-4324},
	pages = {89-97},
	orcid-numbers = {Mester, Zoltán/0000-0002-2377-2615}
}

@article{MTMT:22008536,
	title = {Determination of selenoamino acids by high-performance liquid chromatography-hydraulic high pressure nebulization-atomic fluorescence spectrometry},
	url = {https://m2.mtmt.hu/api/publication/22008536},
	author = {Puskel, E and Mester, Zoltán and Fodor, Péter},
	doi = {10.1039/a901651a},
	journal-iso = {J ANAL ATOM SPECTROM},
	journal = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY},
	volume = {14},
	unique-id = {22008536},
	issn = {0267-9477},
	year = {1999},
	eissn = {1364-5544},
	pages = {973-976},
	orcid-numbers = {Mester, Zoltán/0000-0002-2377-2615}
}

@article{MTMT:1710628,
	title = {High performance liquid chromatography - hydride generation - atomic fluorescence spectroscopic determination of arsenic species in water},
	url = {https://m2.mtmt.hu/api/publication/1710628},
	author = {Mester, Zoltán and Fodor, Péter},
	doi = {10.1016/S0021-9673(96)00625-5},
	journal-iso = {J CHROMATOGR A},
	journal = {JOURNAL OF CHROMATOGRAPHY A},
	volume = {756},
	unique-id = {1710628},
	issn = {0021-9673},
	year = {1996},
	eissn = {1873-3778},
	pages = {292-299},
	orcid-numbers = {Mester, Zoltán/0000-0002-2377-2615}
}

@article{MTMT:1710615,
	title = {Determination of Arsenic Species by High Performance Liquid Chromatography –Hydride Generation- Ultrasonic Nebulizer – AFS},
	url = {https://m2.mtmt.hu/api/publication/1710615},
	author = {Mester, Zoltán and Woller, Ágnes and Fodor, Péter},
	doi = {10.1006/mchj.1996.0094},
	journal-iso = {MICROCHEM J},
	journal = {MICROCHEMICAL JOURNAL},
	volume = {54},
	unique-id = {1710615},
	issn = {0026-265X},
	abstract = {A technique to determine four species of arsenic (AsIII, AsV, dimethylarsinic (DMAs), and monomethylarsonic (MMAs) acids) where high-performance liquid chromatography was coupled to an atomic fluorescence spectrometer using an ultrasonic nebulizer as an interface has been further improved by the use of hydride generation. The effect of hydride conditions on signal intensities has been investigated. The detection limits for AsIII, AsV, DMAs, and MMAs were 2.5, 6, 3.2, and 2 ng, respectively (at 250 mm3 volume injected). The linearity for all four arsenic species were in the range 25-1000 ng. © 1996 Academic Press, Inc.},
	year = {1996},
	eissn = {1095-9149},
	pages = {184-194},
	orcid-numbers = {Mester, Zoltán/0000-0002-2377-2615}
}

@article{MTMT:2897834,
	title = {BREAKDOWN OF ORGANIC MERCURY-COMPOUNDS BY HYDROCHLORIC ACID-PERMANGANATE OR BROMINE MONOCHLORIDE SOLUTION FOR THE DETERMINATION OF MERCURY BY COLD-VAPOR ATOMIC-ABSORPTION SPECTROMETRY},
	url = {https://m2.mtmt.hu/api/publication/2897834},
	author = {SZAKACS, O and LASZTITY, A and Horváth, Zalán},
	doi = {10.1016/S0003-2670(01)84416-0},
	journal-iso = {ANAL CHIM ACTA},
	journal = {ANALYTICA CHIMICA ACTA},
	volume = {121},
	unique-id = {2897834},
	issn = {0003-2670},
	year = {1980},
	eissn = {1873-4324},
	pages = {219-224}
}