NEW TECHNIQUE FOR MEASURING ABSORPTION-COEFFICIENTS OF STRONGLY ABSORBING LIQUIDS - OPTOTHERMAL STUDY OF SUNFLOWER OIL, OLEIC-ACID AND ITS CHLOROFORM SOLUTIONS AT 3.39 MICRONS

被引：5

作者：

BICANIC, D

CHIRTOC, M

CHIRTOC, I

VANVELDHUIZEN, B

FAVIER, JP

HELANDER, P

机构：

[1] INST ISOTOPES & MOLEC TECHNOL,R-3400 CLUJ NAPOCA,ROMANIA

[2] AB VARILAB,S-14144 HUDDINGE,SWEDEN

[3] AGR UNIV WAGENINGEN,DEPT ORGAN CHEM,6703 HB WAGENINGEN,NETHERLANDS

来源：

SPECTROSCOPY LETTERS | 1995年 / 28卷 / 01期

关键词：

OPTOTHERMAL SPECTROSCOPY; OLEIC ACID; SUNFLOWER OIL ABSORPTION COEFFICIENTS; INFRARED LASER SPECTROSCOPY;

D O I：

10.1080/00387019508011658

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Optothermal window (OW) cell and a low power infrared (IR) laser (He-Ne) were used to measure absorption coefficient beta of sunflower oil, oleic acid (C18:1) and its solutions in chloroform at 3.39 mum. Values of beta as high as 2782 cm-1 (for C18:1) were measured in a simple and reproducible fashion without the need to know actual sampling pathlength. Failure of C-H stretch vibration to follow Bouger-Beer's law was observed and 0.35 % detection limit of C18:1 in CH3Cl at 30 Hz determined.

引用

页码：101 / 110

页数：10