Profile: Angstrom Advanced Inc. designs, manufactures and supplies variety of scientific instruments and Hydrogen & Nitrogen plants for academic and industrial fields. We provide several product lines including X-ray Diffractometer, Lab Gas Generator, Atomic Force Microscope/Scanning Electron Microscope, Heavy Metal Analyzer, Raman Spectrometer, and Inductively Coupled Plasma Atomic Emission Spectroscopy(ICP-AES). We also offer Inductively Coupled Plasma Optical Emission Spectrometry(ICP-OES), ICP Mass Spectrometer(ICP-MS), Gas Chromatogrphy, GC-MS, High Performance Liquid Chromatogrphy(HPLC), Particle Size Analyzer, Hydrogen Generating Plant, and Nitrogen Generating Plant. HGH-300 and HGH-500 high purity hydrogen generators are based on the technology of astronautic fuel cells, in which hydrogen is produced by the electrolysis of water, and the produced oxygen is released into the atmosphere. The hydrogen generator consists of electrolyzing/separating pool, power supply, pressure control, desiccation& purification, flow display etc. The core part -- electrolyzing & separating pool, uses a tube shaped positive pole and a plate shaped negative pole. Both poles are made of stainless steel. The electrolyzing & separating pools store electrolytes, produce hydrogen as well as release hydrogen at the same time.