Sample Pretreatment and Analysis Methods in Foreign Object Analysis and Specific Examples of Issues

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【Lecture Summary】 This presentation will introduce the analysis using microscope FT-IR (Fourier Transform Infrared Spectroscopy) focused on foreign substances mixed in food and foreign substances mixed in rubber and plastic products. It will cover sampling methods, pretreatment methods, analytical techniques, methods for analyzing the obtained spectra, and examples of analyses combined with other devices. 【Lecture Summary】 In foreign substance analysis, regardless of how precise the methods become, it is challenging to accurately identify the foreign components by measuring the sample containing the foreign substances as is. The success of all analyses, including foreign substance analysis, largely depends on how efficiently and with high purity the target substances can be extracted and purified.

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Applications/Examples of results

Part 1: Analysis Methods and Specific Cases of Microscopic Foreign Substances Contaminated in Products 1. What is foreign substance contamination? 1-1 Types of foreign substances 2. Procedures for foreign substance analysis and selection of equipment: FT-IR, EPMA, micro X-ray diffraction, SEM, thermal decomposition GC/MS, DSC, etc. 3. Specific cases: Food, pharmaceuticals, textiles, dental materials, excrement, rubber, glass, metals, etc. 【Q&A】 Part 2: Sample Pretreatment and Collection Methods for Foreign Substance Analysis, and Cases of Malfunctions and Analysis Due to Foreign Substances 1. Overview of foreign substance analysis 2. Pretreatment and collection methods for foreign substance samples 3. Tools for collection 4. Equipment for foreign substance collection 5. Cases of malfunctions and analysis due to foreign substances 5-1 Abnormal color development in photographic film 5-2 Qualitative analysis of foreign substances in liquid crystal substrates, etc. 【Q&A】