Environmental Express Soil-Cell - Manual (Page 6)

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Soil-Cell: Operation and Instruction Manual Adaptation of EPA Method 3546
3.8 Put the Soil Extraction Cells into the HotBlock and heat for 30 minutes
at a block temperature of 130º C. This will give samples 10 – 20 minutes
at the appropriate temperature for extraction which is recommended by
Method 3546.
3.9 Remove the cells and allow them to cool to room temperature.
3.10 Unscrew the threaded outer cap and remove. Take care in doing this step
as pressure will develop in the Soil Extraction Cells during the heating
process.
3.11 Take out the stainless steel inner lid and rinse with the appropriate
solvent, taking care to collect this rinsate in the cell.
3.12 Proceed with filtering and rinsing, collecting all filtrates. A Buchner
funnel with vacuum is recommended but any appropriate laboratory
filtration device may be used.
3.13 The extract is now ready for concentration, cleanup, and analysis.
All QC samples, limitations, interferences, and reagent specifications are addressed
in depth in EPA Method 3546. Safety concerns are also part of the full method.
Follow the instructions listed in EPA Method 3546. These steps should only be used
as a guide.
Recommended Surrogates and Other Consumables
Description Catalog #
Base-Neutral, 100 ug/mL; Acid, 100 ug/mL, 25mL M0011
Base-Neutral, 100 ug/mL; Acid, 100 ug/mL with CLP, 25mL M0013
Nonatriacontane, 80 ug/mL; O-Terphenyl, 80 ug/mL, 25mL M0030
Pesticide/PCB Surrogate Solution, 200µg/mL, 1mL GCS130023-07
Herbicide Surrogate Solution, 2000µg/mL, 1mL GCS011025-01
Pelletized 60 Mesh Diatomaceous Earth, 4kg K6180-4
Sodium Sulfate, Anhydrous, 500g LC248801