C. Blythe, L. Pereira, R.Lewis, S. Aspey
L. Pereira, R.Lewis, S. Aspey
Environmental protection is of increasing concern in many countries, with more legislation being introduced for maximum levels permitted for micro-pollutants in water, soil, etc. Very low detection limits (mg/L level and below) are required for monitoring organic compounds in drinking water which requires sample preparation and pre-concentration.
The required sample pre-treatment consists of extracting traces of organic pollutants from the aqueous media, concentrating them and often removing other components of the matrix, which may interfere with the chromatographic analysis by LC or GC. Porous graphitic carbon (PGC) retains highly polar and water-soluble compounds and, therefore, this material can be used for the trace-level determination of polar and very polar water pollutants. Many pollutants when degraded produce very polar metabolites and these are often very well retained on PGC, allowing the handling of large volumes of water prior to breakthrough, and therefore improved limits of detection.
This poster describes a SPE-LC/ESI/MS method for the analysis of polar degradation products of atrazine (ammeline, ammelide, cyanuric acid, atrazin-desethyl-desisopropyl, atrazin-desethyl and atrazin-desisopropyl), to allow their determination in environmental waters at the sub mg/L level.
Poster presented at:
3rd National Meeting on Environmental Mass Spectrometry - 2006