A SIMPLE, EFFECTIVE, AND GENERAL-METHOD OF ENHANCING PEAK INTENSITIES IN ATTENUATED TOTAL REFLECTANCE FOURIER-TRANSFORM INFRARED-SPECTRA OF POWDERED SOLIDS

被引：5

作者：

LYNCH, BM

CHISHOLM, SL

机构：

[1] Spectroscopy Laboratory, Department of Chemistry, Saint Francis Xavier University, Nova Scotia B2G ICO, Antigonish

来源：

LANGMUIR | 1992年 / 8卷 / 02期

关键词：

D O I：

10.1021/la00038a003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Attenuated total reflectance Fourier transform infrared (ATR FT-IR) spectral features of inorganic and organic powders are markedly enhanced when overlaid by nondissolving liquids as compared with measurements for dry materials. The extent of enhancement is controlled by the ratio of refractive indices of the liquid as compared with that of the ATR reflective element and quantitatively follows the predicted depth of penetration of the evanescent wave. This simple, nondestructive modification of sampling for ATR spectroscopy should find general use in analytical vibrational spectroscopy for powdered materials; it is of particular value for less intense peaks.

引用

页码：351 / 352

页数：2

共 3 条

[1]

HARRICK NJ, 1979, INTERNAL REFLECTION, P30

[2] ABNORMALLY HIGH IR FREQUENCIES FOR THE CARBONYL GROUP OF SEMICARBAZONES OF THE BENZALDEHYDE AND ACETOPHENONE SERIES [J].

KOLB, VM ;

STUPAR, JW ;

JANOTA, TE ;

DUAX, WL .

JOURNAL OF ORGANIC CHEMISTRY, 1989, 54 (10) :2341-2346

[3] ATTENUATED TOTAL REFLECTANCE SPECTRA OF COLLOIDAL AND PARTICULATE SILICA SAMPLES IN AQUEOUS-MEDIA [J].

SMITHPALMER, T ;

LYNCH, BM ;

ROBERTS, C ;

LU, YJ .

APPLIED SPECTROSCOPY, 1991, 45 (06) :1022-1025

← 1 →