Method 104

Dimethylphthalate (DMP), Diethylphthalate (DEP), Di-n-butylphthalate (DBP), Di-2-ethylhexylphthalate (DEHP), and Di-n-octylphthalate (DNOP) by GC/FID


This method describes the sample collection and analysis of dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), di-2-ethylhexyl phthalate (DEHP), and di-n-octyl phthalate (DNOP). Samples are collected by drawing known volumes of air through OVS-Tenax sampling tubes. Samples are desorbed with toluene and analyzed by GC using a flame ionization detector (FID).


(OSHA)

Request-A-Quote

No Obligation Quotation for Analytical Services

If you would like us to provide a quote for laboratory analysis, just provide us with as much information as you can about your project (the more, the better) and we'll provide you a quote via email. As you are searching or browsing our Analytical Guide, you'll see the Request-A-Quote icon... just click on it to start the request process.
Request-A-Quote

Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   A 15 day storage test from sampling to analysis showed recoveries of DMP, DEP, DBP, DEHP and DNOP greater than 93%.
Preservatives:   Store at room temperature.
Required Preps:   OVS-Tenax sampling tube: The tube contains a glass fiber filter and two sections of Tenax adsorbent separated by a foam plug.
Collection Method:   OVS-Tenax sampling tube: 240 L at 1.0 L/min.
Analytical Methodology:   GC/FID
Documentation:   104

Analyte List*

Analyte Formula CAS Number Detection Limit
bis-(2-Ethylhexyl)phthalate
C24H38O4
117-81-7
3.9
 µg
Di-n-octyl phthalate
C24H38O4
117-84-0
3.3
 µg
Dimethylphthalate
C10H10O4
131-11-3
6.5
 µg
Diethylphthalate
C12H14O4
84-66-2
4.8
 µg
Di-n-butylphthalate
C16H22O4
84-74-2
2.4
 µg

* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.