Comparison of Infrared Spectroscopy and Raman Spectroscopy

By conducting two analyses, it is possible to obtain more detailed and accurate results!

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 by conducting both analyses, information that cannot be obtained from either method alone can be acquired in a more detailed and accurate manner. For more details, please refer to the catalog provided. 【Characteristics of Infrared Spectroscopy】 ■ Infrared absorption occurs when the dipole moment changes with vibration (infrared active). ■ Vibrations that cause a distortion in electron distribution (breaking molecular symmetry) have high infrared activity. * For more information, please refer to the PDF document or feel free to contact us.

• Analysis and prediction system

Spectroscopic analysis is suitable for component analysis of foreign substances and qualitative analysis.

We will introduce a comparison between Raman spectroscopy analysis by Aites Co., Ltd. and FTIR. Spectroscopic analysis is suitable for component analysis of foreign substances and qualitative analysis. Both Raman and FT-IR can obtain spectra based on the structure of the analysis target. However, since each has its strengths and weaknesses, it is necessary to use both according to the analysis target. 【Features】 ■ Measurement in the order of a few micrometers, which is difficult with IR analysis, is possible. ■ No sampling is required. *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Analysis Equipment

Detect and analyze the absorption wavelengths of organic molecular groups (functional groups)!

At Aites Co., Ltd., we conduct "FT-IR analysis" to confirm the degradation of resins. The degradation of resins can manifest as visible discoloration or invisible changes. Discoloration can be detected through changes in appearance, but invisible changes can lead to a decrease in strength and become the source of various issues. Analysis using IR allows us to understand the changes in molecular structure caused by these alterations. *For more details, please refer to the PDF document or feel free to contact us.*

• Non-destructive testing
• Other services and technologies

We will suggest appropriate analysis methods based on the condition of polymer materials and samples!

At Aites Co., Ltd., we conduct material degradation analysis. We propose appropriate analytical methods based on the condition of polymer materials and samples. By analyzing the degradation process that the material has undergone and optimizing the polymer materials and usage environment, it is possible to extend the product's lifespan. *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing
• Other services and technologies

It is possible to monitor the progress of the adhesive curing reaction (degree of curing)!

FT-IR spectra sensitively reflect the bonding state of organic materials, making it possible to monitor the progress of adhesive curing reactions (degree of curing). The procedure for measuring the degree of curing of the resin involves comparing the spectra of unreacted materials with those of materials after 100% reaction to identify the changing regions. The degree of curing for unreacted materials is set at 0%, and that for reacted materials is set at 100%. The peak intensity of the measurement sample spectrum is interpolated to determine the reaction rate (degree of curing). 【Procedure for Measuring Degree of Curing】 ■ Compare the spectra of unreacted materials with those of materials after 100% reaction to identify the changing regions. ■ Set the degree of curing for unreacted materials at 0% and for reacted materials at 100%. ■ Interpolate the peak intensity of the measurement sample spectrum to determine the reaction rate (degree of curing). *For more details, please refer to the PDF document or feel free to contact us.

• others

Analysis of inorganic compounds such as metal oxides is also possible! We will introduce the analysis of black spots on the surface of copper-clad laminates.

We would like to introduce a case where discoloration on the surface of a copper-clad laminate was analyzed using Raman spectroscopy. Our Raman spectroscopic analysis can analyze not only organic substances but also inorganic compounds such as metal oxides. Please feel free to contact us when needed. [Analysis Details] ■ Analysis of black spots on the surface of the copper-clad laminate - Slight discoloration is observed on the surface - Upon magnification, a condition resembling black stains is seen - A spectrum of CuO was obtained from the discolored area - The nature of the discoloration is believed to be copper oxide formed on the surface of the copper *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

Depth-direction measurements using Raman spectroscopy! Material analysis of each layer is possible from the surface of multilayer films.

Our "Micro Raman Spectrophotometer" employs a confocal optical system, allowing for the adjustment of the focal position in the depth direction, similar to a microscope, enabling material analysis of each layer from the surface of multilayer films. Using the confocal function of the micro Raman spectrophotometer, the focus of the Raman laser light can be varied in the depth direction. Additionally, by continuously changing the focal position, it is possible to acquire spectra continuously in the depth direction. 【Features】 ■ Adoption of a confocal optical system ■ Enables material analysis of each layer from the surface of multilayer films ■ Capable of varying the focus of the Raman laser light in the depth direction ■ Allows for continuous acquisition of spectra in the depth direction *For more details, please refer to the PDF document or feel free to contact us.

• others

In preparation for this summer's extreme heat, we have completed a "Heatwave Countermeasure Catalog" that will help improve the working environment in the manufacturing and logistics industries. The catalog includes a wide range of products for facility improvements, such as fireproof certified heat-shielding sheets that cut radiant heat by 97%, heat-shielding curtains, roof and window countermeasure products, and fans suitable for large spaces, as well as black globe thermometers that can measure WBGT, wearable alert bands, mobile cooling shelters, and fan-equipped work clothing. We have consolidated measures for "building countermeasures," "work space countermeasures," and "personal countermeasures" into one volume. It can also be used as reference material for discussions in safety and health committees. Please take a look at the specific measures that simultaneously achieve heat countermeasures and energy conservation/CO₂ reduction.

We are pleased to announce the establishment of the "Kyushu Sales Office" aimed at strengthening our business foundation in the Kyushu area. With the opening of the new sales office, we will be able to respond more quickly and flexibly to our customers in the Kyushu region, while enhancing our support system closely tied to the local community. We will also deepen our collaboration with local partner companies, aiming for further growth of our business while strengthening our trust with the community. We kindly ask for your continued support for the Kyushu Sales Office and our company. Thank you very much. 【Overview of Kyushu Sales Office】 Establishment Date: January 1, 2026 Company Name: BM Nagano Co., Ltd. Kyushu Sales Office Location: 1-15-20 Hakataekimae, Hakata Ward, Fukuoka City, Fukuoka Prefecture, 812-0011, NMF Hakataekimae Building 2nd Floor

We have recently started a demonstration experiment aimed at addressing antibiotic-resistant bacteria in dairy farming. Utilizing compost environments, we will examine the impact of using our technology-based aqueous solutions on microbial dynamics. This experiment is being conducted with field cooperation, aiming to establish a new approach that contributes to the realization of a sustainable livestock environment and the reduction of antibiotic usage. In this trial, we will set up a spray group (Group H) and a non-spray group (Group C), and will conduct a time-series comparison before spraying, immediately after spraying, and at 1, 3, 7, 14, 28, and 42 days, as well as at the maturation stage. We will perform sampling from the upper, middle, and lower layers of the compost at a depth of 10 cm, while simultaneously collecting temperature logs (external temperature and two internal compost temperatures) to analyze microbial changes and fermentation status from multiple angles. Based on scientific data, we will pursue a balance between safety and effectiveness, and work towards contributing to the livestock industry.

[SCM Brochure Update] We have updated the brochure for the remote-controlled unmanned excavation method, Safety Climber Method, which is promoted by K-F as a supporting member. The name of the latest brochure is: scm_panf_260219.pdf We hope you find it useful. *For technical questions regarding the Safety Climber Method or inquiries about pricing, please contact the Safety Climber Association Secretariat.

Kort Valuta Inc. (Head Office: Shibuya, Tokyo; CEO: Hideki Shibata; hereinafter “the Company”) announces that Yashima Taxi Co., Ltd. (Head Office: Koto-ku, Tokyo; CEO: Toyoko Nagamine; hereinafter “Yashima Taxi”) has reported positive results— including improvements in hiring, retention, and revenue—one year after implementing the employee benefit service utilizing the “Custom Point Allocation” feature of the TwooCa app, which incorporates a digital employee ID provided by the Company. Press Release: https://prtimes.jp/main/html/rd/p/000000061.000076589.html (*1) Applicable only to benefits that do not fall under “wages” as defined by the Labor Standards Act. (*2) Based on results reported by Yashima Taxi.