Comparison of Photoacoustic and Diffuse Reflectance Infrared Spectroscopy as Near-Surface Analysis Techniques
Comparison of Photoacoustic and Diffuse Reflectance Infrared Spectroscopy as Near-Surface Analysis Techniques
复制标题
光声和漫反射红外光谱作为近表面分析技术的比较
DOI：
10.1366/0003702914337821
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发表时间：
1991
影响因子：
3.5
通讯作者：
Charles Q. Yang
中科院分区：
文献类型：
--
作者：
Charles Q. Yang
傅里叶变换红外光声光谱(FT-IR/PAS)已作为一种近表面分析技术应用于各种类型的样品。漫反射红外傅里叶变换光谱(DRIFTS)也被报道用于表征纤维材料的表面物种。本研究采用FT-IR/PAS和漂移法对化学改性纺织织物、纤维和薄膜进行了研究。对两种方法的近表面分析能力进行了评价和比较。尽管漫反射红外光谱显示近表面物种的谱带强度增强，但FT-IR/PAS的采样深度似乎比漂移要小得多。这些数据表明，FT-IR/PAS是一种有用的聚合物纤维和薄膜的近表面分析技术。
Fourier transform infrared photoacoustic spectroscopy (FT-IR/PAS) has been applied as a near-surface analysis technique for various types of samples. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) also was reported for characterizing surface species of fibrous materials. In this research, chemically modified textile fabrics, fibers, and films were studied by both FT-IR/PAS and DRIFT. The capability of near-surface analysis for both techniques was evaluated and compared. Even though diffuse reflectance infrared spectra show an enhancement in the band intensity of near-surface species, FT-IR/PAS appears to have a much smaller sampling depth than DRIFTS. All the data demonstrate that FT-IR/PAS is a useful near-surface analysis technique for polymeric fibers and films.