UMEx 100 Passive Sampler for Formaldehyde

UMEx 100 Passive Sampler for Formaldehyde
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Product SKU: 500-100/Qty 10

Product: UMEx 100 Passive Sampler for Formaldehyde

UMEx 100 Passive Sampler for Formaldehyde

Meets OSHA Method 1007 Specifications


  • Accurate and reliable for formaldehyde collection
    - Accuracy exceeds OSHA standards
    - Uses popular 2,4-DNPH chemistry
    - Validated by OSHA and Swedish Institute
  • Economical and easy to use
    - No pump or training required
    - Low-cost sampler
    - Sample medium and blank/correction in one unit
  • Documented uptake rates
    - For 15-minute to 24-hour samples
    - For 7-day samples*
  • Conforms to EU ISO 16000-4-2004
  • Meets specifications of OSHA Method 1007
  • Low 2 ppb limit of detection
  • Versatile sampler
    - Workplace sampling
    - Long-term indoor air sampling


The Exponentially Better Sampler

  • Sample and blank/correction in one unit: SKC UMEx Samplers provide the convenience and economy of the sample and blank/correction in one sampler — no extra samplers to order and ship!
  • Lower limit of detection: 2,4-Dinitrophenylhydrazine (DNPH) chemistry detects formaldehyde as low as 2 ppb.
  • Highly selective: DNPH is highly selective for formaldehyde.
  • Easy analysis: High-performance liquid chromatography (HPLC) analysis is simple, allows easy separation of sample components, and may be used with several sensitive selective detectors.
  • Validated sampling rates: Accurate sampling for 15 minutes to 24 hours or 7 days*



Cat. No.


UMEx 100 Passive Sampler
UMEx 100 Passive Sampler for Formaldehyde†
- Limited shelf-life
- Freezer storage required


Treated tape, for QC purposes only P20084 50

* Sampling periods between 24 hours and 7 days have not been evaluated.

† If sampling in an atmosphere containing formalin, see for field study information.


Tech Tips

Q: Why is my lab finding higher background levels of formaldehyde on sampling media than those reported by SKC?

Page 3 of OSHA Method 1007 reports that storing samplers at elevated temperatures will cause DNPH to decompose. The decomposition product, 2,4-dinitroaniline, may be seen as formaldehyde by some labs if they are using a short/fast GC column with inadequate plate count. EPA Method TO-11A, Section 13.2.2 recommends a GC column efficiency of > 5000 theoretical plates. This column will allow for the effective separation of the formaldehyde peak from interfering peaks.

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