Hydrogen gas generators. Hydrogen Gas the safer and more convenient alternative to helium for GC carrier gas. For GC carrier gas, PEAK Scientific's Precision Hydrogen Trace gas generators deliver up to %* hydrogen on demand and provide a safer, convenient and reliable alternative to helium cylinders which have been subject to significant price increases .
Show just you, you with your graphics, or just your graphics. Add frames, images, and text as needed. Organize by topic and rearrange in the order you want. Prezi Video is easy to use. Simply drag in photos or PowerPoint files and add text. When you're ready, present live in a video conference, or record your presentation to share later.