Amines Passive Sampler:  UMEx 400

The UMEX 400 Passive Sampler for Amines was developed in collaboration with the National Institute of Working Life in Umea, Sweden. Constructed of tough polypropylene, the UMEX 400 contains a tape impregnated with 1-naphthyl-isothiocyanate (NITC) for reliable collection of amines.

  • Constructed of tough polypropylene
  • Contains a tape impregnated with 1-naphthyl-isothiocyanate


Concentration Range 0.5 to 10 ppm
Detection Principle Formation of a stable amine derivative, made from a reaction of the amine with the NITC
Analysis Method Analysis by HPLC with UV detection at 254 nm
Accuracy ± 25% for all amines except methyl amine
± 35% for methyl amine
Shelf-life 12 months from date of manufacture in freezer

Before use: < 39.2 F (4 C)

After use: Samples can store at ambient temperatures for 14 days

For storage greater than 14 days, store at < 39.2 F (4 C).

Caution: Do not store with food.

Temperature Effects No effect on sampling rate from 50 to 86 F (10 to 30 C)
Humidity Effects No effect on sampling rate from 10 to 80% relative humidity (RH)
Wind Velocity Effects No effect from 5 to 100 cm/sec
Interferences None found; highly specific for amines
Validation Partial
Dimensions 3.4 x 1.1 x 0.35 in (8.6 x 2.8 x 0.89 cm)
Weight 0.38 oz (10.9 grams)
Slide Cover Blue

Sampling Rates

Compound Sampling Rate
Methyl amine 18.4 14.0
Dimethyl amine 18.2 5.8
Isopropyl amine 13.9 9.5
Allyl amine 22.4 7.7
n-Butyl amine 18.1 9.2

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