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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 and 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, vol.~26, No~12, p.~1393-1398. ISSN~0951-4198. Available from: https://dx.doi.org/10.1002/rcm.6238.
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