THE CONTROL OF ERRORS IN INFRARED SPECTROPHOTOMETRY .6. THE EVALUATION OF OPTICAL-CONSTANTS BY COMBINED TRANSMISSION AND ATTENUATED TOTAL REFLECTION MEASUREMENTS

被引：39

作者：

GOPLEN, TG ^{[1
]}

CAMERON, DG ^{[1
]}

JONES, RN ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT CHEM,MEGURO KU,TOKYO 152,JAPAN

来源：

APPLIED SPECTROSCOPY | 1980年 / 34卷 / 06期

关键词：

OPTICAL VARIABLES MEASUREMENT;

D O I：

10.1366/0003702804731050

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An improved technique is described for the determination of the optical constants of liquids in the infrared. It is based on a combination of transmission and attenuated total reflection (ATR) measurements. A novel application of the Kramers-Kronig transform function is involved whereby a single-valued integration constant is derived from a vector of refractive index measurements obtained by ATR. These are measured over a wavenumber range where the absorbance is low. The accuracy of the method is evaluated on the basis of a statistical treatment of the propagation of the estimated errors in the experimentally measured quantities, viz. , the transmittance, the cell thickness, and the ATR measurements which establish the integration constant (anchor point) of the Kramers-Kronig transform function.

引用

页码：652 / 656

页数：5