EZkem stocks a variety of gas diffusion membranes (used with the gas diffusion modules) — teflon membranes for chloroform extraction, polypropylene membranes for cyanide or ammonia/ TKN analysis and our Type C membranes (by dialysis on a gas diffusion module) for soil and dairy analysis such as phosphate, nitrate and nitrite chemistries.

Let us know if you have questions or contact us for the EPA list for approved gas diffusion test procedures such as converting your phenol based ammonia (that requires distillation) to a simple, fast and easy gas diffusion method.