QUALITATIVE-ANALYSIS OF NANOGRAM SAMPLES WITH FOURIER-TRANSFORM INFRARED TRANSMISSION SURFACE ELECTROMAGNETIC-WAVE SPECTROSCOPY

被引：45

作者：

NISHIKAWA, Y ^{[1
]}

FUJIWARA, K ^{[1
]}

SHIMA, T ^{[1
]}

机构：

[1] KONICA CO LTD,CTR RES & DEV,ANALYT LAB,1 SAKURA MACHI,HINO,TOKYO 191,JAPAN

来源：

APPLIED SPECTROSCOPY | 1990年 / 44卷 / 04期

关键词：

Spectroscopy; Infrared - Surfaces--Spectroscopic Analysis;

D O I：

10.1366/0003702904087280

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The intensity enhancement of infrared spectra with Ag island films in surface electromagnetic wave spectroscopy (SEWS), which is commonly associated with the ATR method, was observed with the use of an ordinary transmission configuration. We refer to this as 'transmission SEWS' or 'T-SEWS.' With 10 nm Ag, the magnitude of enhancement factor was about 200 for the NO2 symmetric stretching band at 1350 cm-1 with p-nitrobenzoic acid. In order to estimate its effectiveness as a qualitative analytical method, T-SEWS spectra were compared with normal transmission spectra with the use of several samples. The results showed that T-SEWS is useful in detecting and identifying nanogram amounts of substances which do not have reactive functional groups-e.g., triphenyl phosphate (TPP) or polydimethylsiloxane (PDMS), which do not have-COOH,-SO3H, -C=S, etc.

引用

页码：691 / 694

页数：4

共 18 条

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