期刊
APPLIED SPECTROSCOPY
卷 62, 期 6, 页码 604-610出版社
SAGE PUBLICATIONS INC
DOI: 10.1366/000370208784658101
关键词
fluorescence resonance energy transfer; FRET; surface imprinted polymeric sensors; SIP; methyl salicylate; MCM silica; Tb3+; nerve gas surrogate detection
An in situ mesopourous surface imprinted polymeric (SIP) sensor was synthesized for a highly sensitive, selective, and kinetically faster detection of the high-vapor-pressure nerve gas surrogate methyl salicylate (MES). Visual detection occurred on the filtrate thin films at 25 pM. Other nerve gas surrogates, TP, DMP, DMMP, PMP, and 1,4-thioxane, were tested and showed a decrease in sensitivity compared to MES. In addition, 2,6-dipicolinic acid (DPA), a biological indicator, was also investigated and showed a decrease in sensitivity compared to MES. Finally, the detection plateau was reached at 40 s and at 1.5 X 10(-4) M from pH 6-11.
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