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- Posts: 34
- Joined: Thu Oct 08, 2015 9:25 am
- Location: Pretoria, SA
I would like to ask, what method is best for preparing samples for the analysis of Diesel Range Organics in water samples? I am currently using the SPE method and I have learnt that when I run standards straight(without the extraction) the recovery is perfect but once I take a standard of the exact concentration and run it through the extraction method I lose a wholly lot of the diesel constituent.
I tried looking for a different SPE cartridge but so far have not been able to find another kind. No I do not know what to do anymore. I tried to send one of the standards I prepared to another lab to check what the get but they complained about the solvent (propanol) I used for that standard.
Kind regards
Gugu