This document mainly introduces the method of using solid-phase extraction and gas chromatography-mass spectrometry to analyze phenols in water.
This document describes a simplified approach to concentrating trace compounds in water using polymeric resins, specifically the Agilent AccuBond ENV cartridge made of polystyrene-divinylbenzene. The note demonstrates the accuracy and precision achievable for selected phenols at 10 ppb levels using this material combined with a retention time locked gas chromatography/mass spectrometry method.
| Sorbent Material | Polystyrene-divinylbenzene (PS-DVB) |
|---|---|
| Cartridge Capacity | 1000 mg |
| Cartridge Volume | 6-mL |
| Sample Delivery Rate | 20 to 25 mL/min |
| Phenol Recovery | Exceeded 70% |
| Other Phenols Recovery | Greater than 90% |
| Precision (RSD) | Better than 5% |
A 1-liter sample can be extracted in less than an hour.
The sample delivery rate is high, between 20 and 25 mL/min.