Comparison of Infrared Spectroscopy and Raman Spectroscopy

At Aites Co., Ltd., we have newly introduced "Microscopic FT-IR" this fiscal year. The "Microscopic FT-IR," which combines FT-IR and optical microscopy, allows for the measurement of tiny substances on the order of several tens of micrometers, which are difficult to measure with conventional FT-IR, using an aperture (field of view diaphragm). There are three main measurement methods for Microscopic FT-IR: "transmission method," "reflection method," and "ATR method." While the transmission method is the basic measurement method in Microscopic FT-IR measurements, the reflection method or ATR method may be more suitable depending on the shape of the sample and the feasibility of sampling.

We would like to introduce our "Chemical Analysis - Trust Us Service." When conducting component analysis of foreign substances or stains on products, it can be challenging to determine whether organic analysis or inorganic analysis is more suitable, and which specific analysis within organic or inorganic is the most appropriate. We provide a comprehensive service for customers who are struggling with the selection of analysis methods. Since each analysis device can measure different targets, it is necessary to choose a method that fits the purpose based on the information available.

This document introduces the characteristics of each spectroscopy method and the spectra obtained when comparing infrared spectroscopy and Raman spectroscopy. Both infrared spectroscopy and Raman spectroscopy are vibrational spectroscopies that investigate the vibrational energy of molecules, but the shapes of the spectra obtained from each method differ even when measuring the same substance. Infrared spectroscopy and Raman spectroscopy are complementary, and information that cannot be obtained from either analysis alone can be acquired more detailed and accurately by conducting both analyses. For more details, please refer to the published catalog.