FORMIC ACID 2011
Samples showed 91.5% recovery after one week of storage at ambient conditions compared to one-day old samples [1]. Breakthrough did not occur when a 25 mg/m3 test atmosphere (85% relative humidity) was sampled at 0.18 liter/minute for 300 minutes. This modification of NMAM 7903, which uses 2.5 mM Na 2B 4O 7·10 H 2O eluent, resulted in a LOD of 2
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