UME^x 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

UME^x Spec. Sheet (PDF)

UME^x Operating Instructions (PDF)

Research Report: Determination of Aliphatic Amines Using the SKC UME^x 400 Diffusive Sampler (PDF)

The single-use UME^x 400 Passive Sampler for Amines was developed in collaboration with the National Institute of Working Life in Umea, Sweden. Constructed of tough polypropylene, the UME^x 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 UME^x 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 UME^x 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

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) 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 (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	Qty.	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

UME^x Spec. Sheet (PDF)

UME^x Operating Instructions (PDF)

Research Report: Determination of Aliphatic Amines Using the SKC UME^x 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.

Note: UME^x was developed in collaboration with:
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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This page was last modified April 19, 2009