A METHOD OF CALIBRATION OF THE FORMIC-ACID MONOMER CONCENTRATION IN THE GAS-PHASE

被引：13

作者：

FINKBEINER, M ^{[1
]}

NEEB, P ^{[1
]}

HORIE, O ^{[1
]}

MOORTGAT, GK ^{[1
]}

机构：

[1] MAX PLANCK INST CHEM,DIV ATMOSPHER CHEM,D-55020 MAINZ,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1995年 / 351卷 / 06期

关键词：

D O I：

10.1007/BF00322726

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pyrolysis of t-butyl formate, (CH3)(3)C-O-CHO, has been carried out in a carrier gas stream of Ar or N-2 in a temperature range of 200-400 degrees C. Between 200 and 300 degrees C, the pyrolysis yielded an equimolar mixture of HCOOH and (CH3)(2)C = CH2. The results have been used as a calibration method for determining the concentration of the gas-phase HCOOH monomer without interference from the formation of the formic acid dimer. Using this technique, the gas-phase infrared absorption cross-section of HCOOH at 1105 cm(-1) (peak to valley) for the resolution of 0.5 cm(-1) has been determined to be 6.76 x 10(-19) cm(2) molecule(-1).

引用

页码：521 / 525

页数：5

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