Method for determination of atmospheric ammonia

Determination of ammonia in air is complicated by interference from particle-borne ammonium ions. This problem can however be solved by utilizing the well-known fact that when ambient air passes through a tube, gas molecules diffuse much more quickly than particles to the tube wall. The here presented method is based on both theorethical consideration and practical tests.

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Last updated: 2021-05-05

IVL Swedish Environmental Research Institute

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