Skip to main content

UMEx 400 Passive Sampler for Aliphatic Amines

The SKC UMEx 400 Passive Sampler collects amines in the 0.5 to 10 ppm range. The UMEx 400 Passive Sampler contains a tape treated with 1-Naphthyl-isothiocyanate (NITC). Each sampler incorporates a “blank/ correction” section in addition to the active sampling section. Analysis is by high-performance liquid chromatography with UV detection (HPLC-UV) for identification of amines that may be present in the sample.

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). The UMEx 400 sampler is designed for single use only. Do not reuse UMEx samplers.

UMEx 400 Passive Sampler for Aliphatic Amines
  • Same chemistry as active OSHA Method 60
  • Accurate and reliable
  • Validated sampling rates for:

• Methylamine
• Allyl amine
• Dimethylamine
• n-Butyl amine
• Isopropylamine

  • Economical and easy to use
  • No pump or training required
  • 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
  • Use for personal or area sampling
Sampling Rate    See Sampling Rates table below
Detection Principle    Formation of a stable amine derivative, made from a reaction of the amine with NITC
Concentration Range    0.5 to 10 ppm
Shelf-life    12 months from date of manufacture in refrigerator
Capacity    29 µg/sample
Analysis    Analysis by HPLC with UV detection at 254 nm
Accuracy    ± 25% for all amines except methylamine
± 35% for methylamine
Storage    Before use: < 4°C (39.2°F) 
After use: Samples can store at ambient temperatures for 14 days. For storage greater than 14 days, store at < 4°C (39.2°F).
Do not store with food.
Temperature Effects    No effect on sampling rate between 10 and 30°C (50 and 86°F)
Wind Effects    No effect from 5 to 100 cm/s
Interferences    None found; highly specific for amines
Dimensions    8.6 x 2.8 x 0.89 cm (3.4 x 1.1 x 0.35 inches)
Weight    10.8 g (0.38 oz)
Sampling Rates
Compound    Sampling Rate (ml/min)
Methylamine    18.4
Dimethylamine    18.2
Isopropylamine    13.9
Allyl amine    22.4
n-Butylamine    18.1
UMEx 400 Passive Samplers
Description Pack Size Part Number
UMEx 400 Passive Sampler for Aliphatic Amines

Designed for single use only. DO NOT reuse UMEx samplers.

10 500-400
Description Pack Size Part Number  
Stand for Indoor Sampling Each 690-302  690-302 Stand for mounting passive samplers for Indoor Sampling  
Shelter for Outdoor Sampling Each 690-303  690-303 Shelter for mounting passive samplers for Outdoor Sampling 
Stand for Indoor Sampling


Shelter for Outdoor Sampling


UMEX 400 Passive Sampler Instructions

UMEx 400