UMEx 100 Passive Samplers, for Formaldehyde, Pk/10

UMEx 100 Passive Samplers, for Formaldehyde, Pk/10

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Part Number: 500-100

UMEx 100 Passive Samplers, for Formaldehyde, Pk/10 Overview

UMEx 100 Passive Sampler for Formaldehyde; detection range from 5 ppb to 5 ppm; 15-minute to 24-hour samples and 7-day samples (sampling periods between 24 hours and 7 days have not been evaluated); single use only, pk/25 
Limited shelf-life; storage at ≤ 39.2 F (4 C) required.


Meets OSHA Method 1007 specifications 
If sampling in an atmosphere containing formalin, visit www.skcinc.com/knowledgecenter and search on “formalin”.

The convenient UMEx 100 Passive Sampler features sensitive method-validated chemistry for detection of low levels of formaldehyde. The single-use UMEx 100 contains a tape treated with 2,4-dinitrophenylhydrazine (DNPH) for reliable collection. Sampling rates are validated from 15 minutes to 24 hours or 7 days. Analysis is performed by high-performance liquid chromatography (HPLC).

 

Performance Profile

Sampling Rate for Formaldehyde

28.6 ml/min with a RSD of 7.6% at wind velocity of 5 to 100 cm/sec for 15 minutes to 24 hours
20.4 ml/min at wind velocities < 5 cm/sec for 1 to 7 days

See the More Information tab for UMEx 100 sampling rates for other aldehydes.
Detection Principle
 Formation of stable DNPH-hydrazone in the presence of formaldehyde
Validation Range
 0.06 to 3.0 ppm
Lower Detection Limits
 15 min: 200 ppb (0.24 mg/m3)
8 hrs: 5 ppb (0.006 mg/m3)
24 hrs: 2 ppb (0.002 mg/m3)
7 days: 0.2 ppb (0.0002 mg/m3)
Shelf-life
 12 mos from date of manufacture at < 39.2 F ([4 C])
Capacity
 29 µg/sample
Analysis
 Solvent extraction and analysis by HPLC (high-performance liquid chromatography) with UV detection
Accuracy
 ± 25%, exceeds OSHA requirements
Storage
 Before use: ≤ 39.2 F (4 C)
After use: ≤ 39.2 F (4 C) and analyze within 3 weeks
Do not store with food.
Temperature Effects
 No effect on sampling rate between 10 and 30 C
Humidity Effects
 No effect from 10 to 80% relative humidity (RH)
Do not use sampler below 10% RH.
Wind Effects
 No effect from 5 to 100 cm/sec
Interferences‡
 Large amounts of carbonyl compounds may reduce the uptake of formaldehyde.

Use in ozone levels < 0.5 ppm.
Dimensions
 3.4 x 1.1 x .35 in (8.6 x 2.8 x .89 cm)
Weight
 0.38 oz (10.8 gm)
Note: If sampling in an atmosphere containing formalin, see Sampling Formaldehyde from Formalin Using Passive Samplers for field study information.

 

  • Passive Sampler Use : Formaldehyde
  • Passive Sampler Use : Other Aldehydes
  • Passive Sampler Sorbent : Treated Tape
  • Validation Level : Calculated
  • Validation Level : Full
  • Validation Level : OSHA
  • Validation Level : Partial

UMEx 100 passive sampler with callouts

UMEx 100 Passive Sampler for Formaldehyde — The Professional's No. 1 Choice
The UMEx 100 Passive Sampler for formaldehyde is constructed of tough polypropylene, and contains a tape treated with 2,4-dinitrophenylhydrazine (DNPH) for reliable collection of formaldehyde. Samplers are provided in individual aluminized pouches that can be used to transport the sampler to a laboratory after sampling. The shelf-life date is printed on a label on the outside of each pouch for easy inventory management. The UMEx 100 Sampler includes a clip for attachment to a worker’s collar for occupational sampling or in an appropriate location for environmental monitoring. 
 
UMEx 100 for Other Aldehydes 
UMEx 100 can be used to sample other aldehydes. See the Passive Sampling Guide for UMEx 100 sampling rates for other aldehydes or check below for calculated sampling rates. 

Using the UMEx 100 Passive Sampler
Sampling with the UMEx 100 Passive Sampler for formaldehyde is easy and requires no pump or training. Simply remove the sampler from the pouch, record sampling information, and slide the cover to the "on" position. Clip the sampler on a worker for occupational sampling up to 12 hours or in an appropriate location for environmental monitoring for up to 24 hours or for 7 days. When sampling is complete, simply slide the cover to the "off" position, place the sampler back in the pouch immediately, and seal. Send the sampler to an accredited laboratory for analysis by high-performance liquid chromatography. The UMEx 100 sampler is designed for single use only. Do not reuse UMEx samplers.


UMEx 100 for Other Aldehydes
UMEx 100 can be used to sample other aldehydes. See the Passive Sampling Guide for UMEx 100 sampling rates for other aldehydes or check below for calculated sampling rates.

Compound
Sampling Rate†
(ml/min)
Formaldehyde
(full validation)
28.6
(velocity 5 to 100 cm/sec, 15 min to 24 hrs)
20.4
(velocity < 5 cm/sec, 1 to 7 days)
Acetaldehyde
22.8 †
Benzaldehyde
13.5 †
Butyraldehyde
15.8 †
Crotonaldehyde
9.71 †
Chloroacetaldehyde
19.4 **
Decylaldehyde
10.4 **
Glutaraldehyde
14.0 †
Heptanaldehyde

12.8 **
Hexanaldehyde

9.66 †
Isovaleraldehyde  

15.5 †
Nonanaldehyde
11.6 **
o-Phthaldehyde
12.83 **
Propionaldehyde
14.0 †
o-Tolualdehyde
12.7 **
Valeraldehyde
15.4 **

 

† Partial validation; see the Passive Sampling Guide
** Calculated sampling rate; see the Passive Sampling Guide

 

UMEx 200 for Sulfur Dioxide and/or Nitrogen Dioxide
UMEx 200 uses tape treated with triethanolamine (TEA) for the passive collection and analysis of sulfur dioxide and/or nitrogen dioxide. Analysis is by ion chromatography (IC) with conductivity detection. See UMEx 200 for Sulfur Dioxide and/or Nitrogen Dioxide for more information.

 

References

Levin, J.O. and Lindahl, R., "Diffusive Air Sampling of Reactive Compounds - A Review," Analyst, Vol. 119, January 1994, pp. 79-83

Levin, J.O., Lindahl, R., and Andersson, K., "Monitoring of Parts-per-billion Levels of Formaldehyde using a Diffusive Sampler," APCA Journal, Vol. 39, No. 1, January 1989, pp. 44-47

Levin, J.O., Lindahl, R., Andersson, K., and Hallgren, C., "High-Performance Liquid Chromatography Determination of Diethylamine in Air Using Diffusive Sampling Thiourea Formation," Chemosphere, Vol.18, Nos. 11-12, pp. 2121-2129

Levin, J., Lindahl, R., and Andersson, K., "High-performance Liquid Chromatographic Determination of Formaldehyde in Air in the ppb and ppm Range Using Diffusive Sampling and Hydrazone Formation," National Institute of Occupational Health, Research Department in Umea, Analytical Chemistry Division, P.B. 6104, S-90006 Umea, Sweden Environmental Technical Letter 9, 1988, pp. 1423-1430

Levin, J.O., Lindahl, R., and Andersson, K., "A Passive Sampler for Formaldehyde in Air Using 2, 4-Dinitrophenylhydrazine-coated Glass Fiber Filters," Environmental Science & Technology, Vol 20, No. 12, 1986, pp. 1273-1276

Levin, J.O., Lindahl, R., Heeremans, C., and van Oosten, K., "Certification of Reference Materials Related to the Monitoring of Aldehydes in Air by Derivatization with 2,4-Dinitrophenylhydrazine," Analyst, Vol. 121, September 1996, pp. 1273-278

Lindahl, R., Levin, J.O., "Laboratory Validation of a Diffusive Sampler for the Determination of Glutaraldehyde in Air," Journal of Chromatography A, 710, 1995, pp. 175-180

Lindahl, R., Levin, J.O., and Jarvholm, B., "Self-assessment as a Method for Determination of Exposure to Formaldehyde," Indoor Air, Vol. 4, 1999, pp. 453-458

Lindahl, R., Levin, J.O., and Martensson, M., "Validation of a Diffusive Sampler for the Determination of Acetaldehyde in Air," Analyst, Vol. 121, September 1996, pp. 1177-1181

Pengelly, I., Groves, J. A., Levin, J.O., Lindahl, R., "An Investigation into the Differences in Composition of Formaldehyde Atmospheres Generated from Different Source Material and the Consequences for Diffusive Sampling," Applied Occupational Hygiene Vol. 40, No. 5, 1996, pp. 555-567

OSHA Method 1007 Formaldehyde (Diffusive Samplers), May 2005