GC-MS sample preparation

Micropollutant enrichment

1. To be concentrated, the sample is loaded onto a pre-conditioned SPE column
2. Next, the column is washed with water and dried under a stream of nitrogen
3. The analytes are then eluted with acetone
4. The acetone is evaporated in the rotary evaporator
5. Finally, the analytes are dissolved in GC-MS buffer