A Study on the Qualitative and Quantitative Analysis of Nanogram Samples by Transmission Infrared Spectroscopy with the Use of Silver Island Films
作者： Yuji Nishikawa , Kunihiro Fujiwara , Tetsuo Shima
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摘要: Qualitative and quantitative analysis of nanogram amounts substances by transmission infrared spectroscopy with the use silver island films was carried out. The effect thickness, comparison several plates (Ge, BaF2, ZnSe), dynamic range intensity enhancement vs. sample amount, stability after deposition were investigated extensively to determine optimum conditions. limits detection (LOD) also described. LOD values ranging from 5 ng/cm2 for polydimethylsiloxane 10 diethylphthalate obtained, these show a remarkable improvement in results normal spectroscopy. A study undertaken. good linear relationship respect amount triphenyl phosphate, 25 250 ng/cm2, obtained. data reproducible coefficient variation 15%, this comparable that obtained surface-enhanced Raman scattering methods.
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