Need suggestion for PCB analysis

[therdem]

Hi,
I am using ISO 12766-1 for PCB analysis.
In a month I will receive 1000/week samples.
I need faster sample preparation method.
Any suggestion?
Epa 3546 suggest microwave but it doesn't say about acid? ISO uses H2SO4, could it possible to use for pcb preparetion.

[Steve Reimer]

What matrix are your samples going to be?
I have done a relatively large # of wipes for short turn around but if you want to do 1000/week you better have a well worked out procedure. If you have to prep a large number of soils you will need a lot of help.
Extract cleanup with concentrated sulfuric acid is always good, it helps to confirm that it is in fact PCBs. I used 100mg Florisil cartridges for the final step, after acid treatment. That way no acid will find its way into the GC.
1mL 100mg cartridges will pass 1 mL of hexane extract through without significant loss of PCBs and no extra eluent.