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UMEx 400
Passive Sampler for Amines
Easy, Economical, and Reliable Collection of Amines
- Accurate and reliable
- Economical and easy to use
- No pump or training required
- Low-cost single-use sampler
- Sample medium and blank correction in one unit
- Highly sensitive and specific analysis method
- Small and unobtrusive
- Simple-to-use "on/off" sliding cover
- Safe
- No glass or chemical liquids in the sampler
- Concentration range from 0.5 to 10 ppm
- Personal or area sampling
UMEx
Spec. Sheet (PDF)
UMEx Operating
Instructions (PDF)
Research Report: Determination of Aliphatic Amines Using the SKC UMEx 400 Diffusive Sampler (PDF)
The single-use 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 treated with 1-Naphthyl-isothiocyanate
(NITC) for reliable collection of amines. Samplers are provided in individual
aluminized
pouches that can be reused to transport the sampler to a laboratory after sampling.
For convenience and quality control assurance against contamination, each sampler
incorporates a "blank correction" section in addition to the active sampling
section so there is no need to send extra samplers to the laboratory. The shelf-life
date
is printed on a label on the outside of each pouch for easy inventory management.
The UMEx 400 Sampler includes a clip for attachment to a worker's
collar for personal sampling or in an appropriate location for area sampling.
 |
 |
UMEx Sampler with sliding cover in "off" position |
UMEx Sampler with sliding cover in "on" position |
Using the Passive Sampler
Sampling with the UMEx 400 Sampler is very easy and requires no pump or training. Simply remove the badge from the pouch, record sampling information on the back of the sampler, and slide the cover to the "on" position. Clip the sampler on a worker for personal sampling or in an appropriate location for area sampling for up to 8 hours. When sampling is complete, simply slide the cover to the "off" position, place the sampler back in the pouch, and seal. Send the sampler to an accredited laboratory for analysis by high-performance liquid chromatography with UV detection (HPLC-UV).
Performance Profile
| 0.5 to 10 ppm | |
| 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 |
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 |
Ordering Information
| Description | Cat. No. | |
| UMEx 400 Passive Sampler for Amines UMEx samplers are designed for single use only. Do Not reuse UMEX samplers. Limited shelf-life; storage < 39.2 F (4 C) required. Do not store with food. |
10 |
500-400 |
UMEx
Spec. Sheet (PDF)
UMEx
Operating Instructions (PDF)
Research Report: Determination of Aliphatic Amines Using the SKC UMEx 400 Diffusive Sampler (PDF)
List of Laboratories for Analyzing 400-Series UMEx Passive Samplers
References
Lindahl, R., Levin, J.O., and Andersson, K., "Determination of Volatile Amines
in Air by Diffusive Sampling, Thiourea Formation and High-Performance Liquid
Chromatography," Journal of Chromatography, 643, 1993, pp. 34-41.
Jan O. Levin
Arbetslivsinstitutet
National Institute for Working Life
Programme for Chemical Exposure Assessment
Box 7654, SE 907 13
Umea, Sweden
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