Certification of a reference material for aromatic hydrocarbons in Tenax samplersFunded under: FP2-BCR 4
A homogeneous and stable reference material CRM 112 consisting of aromatic hydrocarbons sorbed on Tenax in stainless steel sample tubes has been prepared and certified. An initial feasibility trial established that a homogeneous and stable batch could be prepared. Part of this batch was used in an intercomparison, which allowed the identification of various sources of error. Another test batch was used in a second intercomparison in an attempt to improve the analytical performance of the participating laboratories. A third batch (of 1000 tubes) was then prepared and certified on the basis of analyses carried out in ten laboratories. The certified values for benzene, toluene and m-zylene are, respectively, 1.053 +/- 0.014, 1.125 +/- 0.015 and 1.043 +/- 0.015 microg per tube.
Bibliographic Reference: Article: Analyst, Vol. 116 (1991) pp. 437-441
Record Number: 199110787 / Last updated on: 1994-12-02
Original language: en
Available languages: en