@article{MTMT:31102875, title = {Determination of methylmercury in rice using microwave-assisted extraction coupled with thermal decomposition amalgamation atomic absorption spectrometry (MAE-TDA-AAS)}, url = {https://m2.mtmt.hu/api/publication/31102875}, author = {Luo, Qing and Gao, Xu and Hu, Yuanan and Lin, Kunde and Wang, Xuejun and Cheng, Hefa}, doi = {10.1039/c8ay02738b}, journal-iso = {ANAL METHOD}, journal = {ANALYTICAL METHODS: ADVANCING METHODS AND APPLICATIONS}, volume = {11}, unique-id = {31102875}, issn = {1759-9660}, abstract = {This work developed a method for rapid determination of methylmercury (MeHg) in rice, a staple cereal widely consumed in Asia, based on microwave-assisted extraction coupled with thermal decomposition amalgamation atomic absorption spectrometry (MAE-TDA-AAS). Orthogonal design was applied to optimize the parameters of MAE, and the optimal conditions were found to be as follows: 1.5 g of rice powder extracted using 12 mL toluene and 6 mL 30% HCl solution at 110 degrees C for 5 min under microwave irradiation. MeHg extracted into the organic phase (4.0 mL) was then back-extracted into 2.0 mL 1.5% L-cysteine solution, followed by quantitation by TDA-AAS on a direct mercury analyzer. The MeHg recovery rate of this method determined from a spiked rice sample was 80.8% (77.5-84.1%, 95% confidence limits), while those for MeHg in certified reference materials, TORT-2 and SRM-2976, were 97.6% (91.0-104.1%, 95% confidence limits) and 93.8% (90.4-97.2%, 95% confidence limits), respectively. The limit of detection and limit of quantification for MeHg in rice were 0.13 and 0.43 ng g(-1), respectively, and the relative standard deviation was below 5%. The extracts of 15 rice samples collected from two provinces in China were analyzed by both TDA-AAS and the well-developed high performance liquid chromatography coupled with inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) method, and comparable results were obtained. Overall, these findings demonstrate that the MAE-TDA-AAS method developed in this study is a convenient and reliable method for quick determination of MeHg in rice and probably other food grains, and it is an order of magnitude more sensitive than the previous methods established for analysis of mercury species in fish and seafood.}, year = {2019}, eissn = {1759-9679}, pages = {1361-1370}, orcid-numbers = {Hu, Yuanan/0000-0001-7103-8119; Lin, Kunde/0000-0003-3186-5296; Cheng, Hefa/0000-0003-4911-6971} } @article{MTMT:26085173, title = {Correlation between total mercury and methyl mercury-in whole blood of South Korean}, url = {https://m2.mtmt.hu/api/publication/26085173}, author = {Jung, SA and Chung, D and On, J and Moon, MH and Lee, J and Pyo, H}, doi = {10.5012/bkcs.2013.34.4.1101}, journal-iso = {B KOR CHEM SOC}, journal = {BULLETIN OF THE KOREAN CHEMICAL SOCIETY}, volume = {34}, unique-id = {26085173}, issn = {0253-2964}, year = {2013}, eissn = {1229-5949}, pages = {1101-1107} } @article{MTMT:21577663, title = {A reliable method to determine methylmercury and ethylmercury simultaneously in foods by gas chromatography with inductively coupled plasma mass spectrometry after enzymatic and acid digestion}, url = {https://m2.mtmt.hu/api/publication/21577663}, author = {Chung, S W C and Chan, B T P}, doi = {10.1016/j.chroma.2010.12.112}, journal-iso = {J CHROMATOGR A}, journal = {JOURNAL OF CHROMATOGRAPHY A}, volume = {1218}, unique-id = {21577663}, issn = {0021-9673}, year = {2011}, eissn = {1873-3778}, pages = {1260-1265} } @article{MTMT:21092533, title = {Electrode reactions and electroanalysis of organomercury compounds}, url = {https://m2.mtmt.hu/api/publication/21092533}, author = {Kurmaz, VA and Gul, tyai VP}, doi = {10.1070/RC2010v079n04ABEH004062}, journal-iso = {RUSS CHEM REV+}, journal = {RUSSIAN CHEMICAL REVIEWS}, volume = {79}, unique-id = {21092533}, issn = {0036-021X}, year = {2010}, eissn = {1468-4837}, pages = {307-350} } @article{MTMT:22008740, title = {Applications of chemical vapor generation in non-tetrahydroborate media to analytical atomic spectrometry}, url = {https://m2.mtmt.hu/api/publication/22008740}, author = {Wu, P and He, LA and Zheng, CB and Hou, XD and Sturgeon, RE}, doi = {10.1039/c003483e}, journal-iso = {J ANAL ATOM SPECTROM}, journal = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY}, volume = {25}, unique-id = {22008740}, issn = {0267-9477}, year = {2010}, eissn = {1364-5544}, pages = {1217-1246} } @article{MTMT:21092535, title = {Orthogonal array optimization of microwave-assisted derivatization for determination of trace amphetamine and methamphetamine using negative chemical ionization gas chromatography-mass spectrometry}, url = {https://m2.mtmt.hu/api/publication/21092535}, author = {Chung, LW and Lin, KL and Yang, TCC and Lee, MR}, doi = {10.1016/j.chroma.2009.03.020}, journal-iso = {J CHROMATOGR A}, journal = {JOURNAL OF CHROMATOGRAPHY A}, volume = {1216}, unique-id = {21092535}, issn = {0021-9673}, year = {2009}, eissn = {1873-3778}, pages = {4083-4089} } @article{MTMT:21092536, title = {Solvent-enhanced microwave-assisted derivatization following solid-phase extraction combined with gas chromatography-mass spectrometry for determination of amphetamines in urine}, url = {https://m2.mtmt.hu/api/publication/21092536}, author = {Chung, LW and Liu, GJ and Li, ZG and Chang, YZ and Lee, MR}, doi = {10.1016/j.jchromb.2008.09.003}, journal-iso = {J CHROMATOGR B}, journal = {JOURNAL OF CHROMATOGRAPHY B}, volume = {874}, unique-id = {21092536}, issn = {1570-0232}, year = {2008}, eissn = {1873-376X}, pages = {115-118} } @article{MTMT:22008744, title = {Mercury speciation and analysis in drinking water by stir bar sorptive extraction with in situ propyl derivatization and thermal desorption-gas chromatography-mass spectrometry}, url = {https://m2.mtmt.hu/api/publication/22008744}, author = {Ito, R and Kawaguchi, M and Sakui, N and Honda, H and Okanouchi, N and Saito, K and Nakazawa, H}, doi = {10.1016/j.chroma.2008.09.037}, journal-iso = {J CHROMATOGR A}, journal = {JOURNAL OF CHROMATOGRAPHY A}, volume = {1209}, unique-id = {22008744}, issn = {0021-9673}, year = {2008}, eissn = {1873-3778}, pages = {267-270} } @article{MTMT:21092538, title = {Effect of sample matrix on sensitivity of mercury and methylmercury quantitation in human urine, saliva, and serum using GC-MS}, url = {https://m2.mtmt.hu/api/publication/21092538}, author = {Zachariadis, GA and Kapsimali, DC}, doi = {10.1002/jssc.200800345}, journal-iso = {J SEP SCI}, journal = {JOURNAL OF SEPARATION SCIENCE}, volume = {31}, unique-id = {21092538}, issn = {1615-9306}, year = {2008}, eissn = {1615-9314}, pages = {3884-3893} } @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:22008986, title = {Atomic spectrometry update. Advances in atomic emission, absorption and fluorescence spectrometry, and related techniques}, url = {https://m2.mtmt.hu/api/publication/22008986}, author = {Evans, EH and Day, JA and Palmer, C and Price, WJ and Smithe, CMM and Tyson, JF}, doi = {10.1039/b705527g}, journal-iso = {J ANAL ATOM SPECTROM}, journal = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY}, volume = {22}, unique-id = {22008986}, issn = {0267-9477}, year = {2007}, eissn = {1364-5544}, pages = {663-696} } @article{MTMT:21577665, title = {Sample preparation in alkaline media}, url = {https://m2.mtmt.hu/api/publication/21577665}, author = {Nóbrega, J A and Santos, M C and de Sousa, R A and Cadore, S and Barnes, R M and Tatro, M}, doi = {10.1016/j.sab.2006.02.006}, journal-iso = {SPECTROCHIM ACTA B}, journal = {SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY}, volume = {61}, unique-id = {21577665}, issn = {0584-8547}, year = {2006}, eissn = {1873-3565}, pages = {465-495} }