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J Sep Sci


Title:Separation and analysis of trace volatile formaldehyde in aquatic products by a MoO(3)/polypyrrole intercalative sampling adsorbent with thermal desorption gas chromatography and mass spectrometry
Author(s):Ma Y; Zhao C; Zhan Y; Li J; Zhang Z; Li G;
Address:"School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, China"
Journal Title:J Sep Sci
Year:2015
Volume:20150318
Issue:8
Page Number:1388 - 1393
DOI: 10.1002/jssc.201400951
ISSN/ISBN:1615-9314 (Electronic) 1615-9306 (Linking)
Abstract:"An in situ embedded synthesis strategy was developed for the preparation of a MoO3 /polypyrrole intercalative sampling adsorbent for the separation and analysis of trace volatile formaldehyde in aquatic products. Structural and morphological characteristics of the MoO3 /polypyrrole intercalative adsorbent were investigated by a series of characterization methods. The MoO3 /polypyrrole sampling adsorbent possessed a higher sampling capacity and selectivity for polar formaldehyde than commonly used commercial adsorbent Tenax TA. Finally, the MoO3 /polypyrrole adsorbent was packed in the thermal desorption tube that was directly coupled to gas chromatography with mass spectrometry for the analysis of trace volatile formaldehyde in aquatic products. Trace volatile formaldehyde from real aquatic products could be selectively sampled and quantified to be 0.43-6.6 mg/kg. The detection limit was achieved as 0.004 mug/L by this method. Good recoveries for spiked aquatic products were achieved in range of 75.0-108% with relative standard deviations of 1.2-9.0%"
Keywords:Adsorption Animals Decapodiformes *Food Analysis Formaldehyde/*analysis Gas Chromatography-Mass Spectrometry Hot Temperature Limit of Detection Molybdenum/*analysis Oxides/*analysis Penaeidae Polymers/*analysis/chemistry Pyrroles/*analysis Reproducibility;
Notes:"MedlineMa, Yunjian Zhao, Cheng Zhan, Yisen Li, Jianbin Zhang, Zhuomin Li, Gongke eng Research Support, Non-U.S. Gov't Germany 2015/02/14 J Sep Sci. 2015 May; 38(8):1388-93. doi: 10.1002/jssc.201400951. Epub 2015 Mar 18"

 
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