Personal sampler for NOx.

  title={Personal sampler for NOx.},
  author={E. D. Palmes and C Tomczyk},
  journal={American Industrial Hygiene Association journal},
  volume={40 7},
A personal sampler system for NOx (NO + NO2) and NO2 has been developed for monitoring workplace air. The NO2 sampler previously reported from this laboratory uses triethanolamine to trap NO2 which diffuses through a tube of appropriate dimensions. The NOx sampler contains the same elements as the NO2 device, but it is also fitted with a chromic acid impregnated disc; this disc converts NO to NO2 which is then trapped by the triethanolamine along with preformed NO2. The trapped NO2 in all cases… CONTINUE READING