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Winter 2021, Volume 37, No. 1

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Winter 2021, Vol.37, No.1

Visualization of fabric fluffiness and dryness —Evaluation of laundry detergents using X-ray computed tomography—

Yukari Sekine

For manufacturers who market a wide range of products, including household products, pharmaceuticals and/or nutraceutical products, it is important to communicate the characteristics of their products to consumers. This often requires a good evaluation technique that can show the product characteristics intuitively. X-ray imaging techniques, which can visualize the internal...

The “Molecular Grabber” method: Development of new crystalline sponge method New Idea for structural analysis of compounds using protein

Takashi Matsumoto, Akihito Yamano, Ryosuke Nakashima and Kunihiko Nishino

Molecular structure determination is very useful for the development of medicines, aroma chemicals and agrochemicals. Single crystal X-ray diffraction (SC-XRD) analysis is the most powerful technique for molecular structure determination. However, SC-XRD analysis requires good quality crystals. In fact, the biggest hurdle for SC-XRD analysis is crystallization.  Crystallization trials require...

Powder X-ray Diffraction Basic Course Second installment: Selection of equipment configuration to obtain high-quality data

Masashi Omori

It is necessary to obtain high-quality data for highly accurate analysis. The characteristics of high-quality data may be high intensity, high resolution, high P/B (peak-to-background ratio), and high S/N (signal-to-noise ratio). Deciding which features are important depends on the purpose of analysis. Therefore, we need to consider measurement conditions after...

X-ray fluorescence analysis of halogen elements

Wataru Matsuda

Halogen elements correspond to Group 17 in the periodic table and include fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). Materials and products containing halogens are widely used in our daily life. For example, fluorine is contained in Teflon® resin and toothpaste, chlorine is contained in salt and vinyl...

High-resolution receiving optics for SmartLab X-ray diffraction system with a Hybrid Pixel Array Multi-Dimensional Detector (HyPix): HyRES220, HyRES400

Diffraction-based characterization of epitaxial thin films, such as the measurement of the composition, strain, and lattice constants, requires complicated alignment processes of the X-ray optics. Rigaku’s multipurpose X-ray diffractometer, “SmartLab,” features an automatic alignment function, which greatly simplifies the process. However, it still requires a timeconsuming re-alignment process when, for...

OIL-MULTI-PAK for multi-elements analysis of oils using pre-calibration package

X-ray fluorescence (XRF) spectrometry allows both simple sample preparation and high precision analysis.  The method is highly popular among various fields, including quality control and research & development.  Recent advanced data processing techniques and higher instrument sensitivities have improved analytical accuracies in “standardless FP analysis” using Fundamental Parameter (FP) method...