Hemp gummies and cannabidiol (CBD) gummies are edible CBD products that may promote sleep, calm, and pain relief. While hemp seed oil and CBD come from the same plant, they have different chemical ...

State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Zijingang Campus, ...

A spectrometer is a pretty common lab instrument, useful for determining the absorbance of a sample across a spectrum of light. The standard design is simple; a prism or diffraction grating to ...