US$ 137.50
Ideal for educational and DIY projects
environmental chemistry
the optical-grade crown body producing low-dispersion baseline measurements in refraction comparison studies
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Premium Diffraction Grating, 300 Lines/mm Size_55 x 13mm Ideal for educational and DIY300 lines per millimeter produces sharp diffraction spectra from white light and laser sources for wave optics coursework and spectroscopy demonstrations.
US$ 137.50
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US$ 13.50