SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
|
1995年
/
51卷
/
04期
关键词:
D O I:
10.1016/0584-8539(94)01261-E
中图分类号:
O433 [光谱学];
学科分类号:
0703 ;
070302 ;
摘要:
The high optical field intensity of a propagating wave within a waveguide is used to detect low levels, down to 20 ppm, of polyenes in degraded PVC using resonance Raman spectroscopy. An analysis of the waveguide resonance Raman spectra enables an estimation of the polyene sequence distribution within the degraded polymer sample.