Umex 400 Amines
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.
Specifications
| 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 |
| Storage |
Before use: < 39.2 F (4 C) For storage greater than 14 days, store at < 39.2 F (4 C). |
| 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 (ml/min) |
RSD |
| 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 |
