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@article{983982,
author = {Hsieh, YiandTing and Chen, WenandTsen and Tomalová, Iva and Preisler, Jan and Chang, HuanandTsung},
article_number = {12},
doi = {http://dx.doi.org/10.1002/rcm.6238},
keywords = {Melamine; Gold Nanoparticles; SALDI MS},
language = {eng},
issn = {0951-4198},
journal = {Rapid Communications in Mass Spectrometry},
title = {Detection of melamine in infant formula and grain powder by surface-assisted laser desorption/ionization mass spectrometry},
url = {http://onlinelibrary.wiley.com/doi/10.1002/rcm.6238/abstract;jsessionid=04DA26CB9CF54ABD25D35FC3AED0E339.d03t01},
volume = {26},
year = {2012}
}
TY - JOUR
ID - 983982
AU - Hsieh, Yi-Ting - Chen, Wen-Tsen - Tomalová, Iva - Preisler, Jan - Chang, Huan-Tsung
PY - 2012
TI - Detection of melamine in infant formula and grain powder by surface-assisted laser desorption/ionization mass spectrometry
JF - Rapid Communications in Mass Spectrometry
VL - 26
IS - 12
SP - 1393-1398
EP - 1393-1398
PB - Wiley InterScience
SN - 09514198
KW - Melamine
KW - Gold Nanoparticles
KW - SALDI MS
UR - http://onlinelibrary.wiley.com/doi/10.1002/rcm.6238/abstract;jsessionid=04DA26CB9CF54ABD25D35FC3AED0E339.d03t01
L2 - http://onlinelibrary.wiley.com/doi/10.1002/rcm.6238/abstract;jsessionid=04DA26CB9CF54ABD25D35FC3AED0E339.d03t01
N2 - We have developed a method for the determination of melamine (MEL), ammeline (AMN), and ammelide (AMD) by surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) using gold nanoparticles (Au NPs). The major peaks for MEL, AMN, and AMD at m/z 127.07, 128.05, and 129.04 are assigned to the [MEL + H]+, [AMN + H]+, and [AMD + H]+ ions. Because the three tested compounds adsorb weakly onto the surfaces of the Au NPs through Au–N bonding, they can be easily concentrated from complex samples by applying a simple trapping/centrifugation process. The SALDI-MS method provides limits of detection of 5, 10, and 300 nM for MEL, AMN, and AMD, respectively, at a signal-to-noise ratio of 3. The signal variation for 150-shot average spectra of the three analytes within the same spot was 15%, and the batch-to-batch variation was 20%. We have validated the practicality of this approach by the analysis of these three analytes in infant formula and grain powder. This simple and rapid SALDI-MS approach holds great potential for screening of MEL in foods.
ER -
HSIEH, Yi-Ting, Wen-Tsen CHEN, Iva TOMALOVÁ, Jan PREISLER a Huan-Tsung CHANG. Detection of melamine in infant formula and grain powder by surface-assisted laser desorption/ionization mass spectrometry. \textit{Rapid Communications in Mass Spectrometry}. Wiley InterScience, 2012, roč.~26, č.~12, s.~1393-1398. ISSN~0951-4198. Dostupné z: https://dx.doi.org/10.1002/rcm.6238.
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