I thought that I would start measuring snow samples again, but the GC-MS let me down. I have not measured any samples since I got back from christmas vacation and it seems that there was a bit of junk that got built up in the system. So I was back to a little cleaning exercise. But I got the job done. After a liner change and some good column baking the baseline was a lot better than before and bleeding has almost stopped. However I still have some diethylphtalate contamination consistently showing up at 15.5 min. I am still guessing, what the source could be.
Anyway – I am (and even more important: the GC-MS is) ready to get some snow measurements done!
