REFERENCE DOCUMENTS - RAL25/0004 (As Published)

     Page                    : 8 of 8
     Work Order              : ES2406465
     Client                  : ENVIRONMENTAL ADVISORS
     Project                 : 125 NSC LAKE McDONALD DVE, COOROY

     Preparation Methods                               Method      Matrix   Method Descriptions
     Methanolic Extraction of Soils for Purge          ORG16       SOIL     In house: Referenced to USEPA SW 846 - 5030A. 5g of solid is shaken with surrogate and 10mL methanol prior
     and Trap                                                               to analysis by Purge and Trap - GC/MS.
     Tumbler Extraction of Solids                      ORG17       SOIL     In house: Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1
                                                                            DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the
                                                                            desired volume for analysis.
     QuECheRS Extraction of Solids                     ORG71       SOIL     In house: Sequential extractions with Acetonitrile/Methanol by shaking. Extraction efficiency aided by the addition
                                                                            of salts under acidic conditions. Where relevant, interferences from co-extracted organics are removed with
                                                                            dispersive clean-up media (dSPE). The extract is either diluted or concentrated and exchanged into the
                                                                            analytical solvent.




Document Set ID: 23717062
Version: 0, Version Date: 01/01/1900