IP 443: Extraction of the soluble organic fraction (SOF) of diesel particulates collected on filters - Soxhlet extraction method

refining-and-midstream
analytical-testing; ip-test-methods
  • Published: January 1999
  • REF/ISBN: IP443-2934869
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Overview:

Scope

This standard describes a procedure for extracting the soluble organic fraction from filters that have been used to collect the particulate emissions from diesel engine exhausts.

NOTE 1 The extract can be used to produce a solution of the soluble organic fraction for further analysis by gas chromatography for the fuel- and lubricating oil-derived hydrocarbons in diesel particulates as described in IP 442.

NOTE 2 A procedure for determining the SOF gravimetrically is described in annex A. The method is suitable for quantities in the sub-milligram to milligram range.

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