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EPA Phenols in water and soil

Analysis of phenols

ALEXYS Phenols Analyzer




Chlorophenols and nitrophenols are used in industry and agriculture for several purposes. In the end they may be found in river or drinking water. The MAC (maximum admissible concentration) in the EEC countries for phenols in drinking water is 0.5 μg/L. In the 70’s the US environmental protection agency (EPA) made a list of the eleven most important phenol contaminants as priority pollutants.

The ALEXYS Phenols Analyser is routinely applied for analysis of environmental phenols using an isocratic or gradient LC system. Detection limits in the low PPB range are obtained. By using on-column sample enrichment in combination with large volume in jection the detection limits are easily improved by a factor 10 – 100.

Application Notes

System configuration

For the analysis of phenols we selected the SenCell with HyREF reference electrode. This cell not only has an excellent reproducibility but also the best possible detection sensitivity. The HyREF is maintenance free, and compatible with high modifier percentages. A 2 mL injection loop is added for large volume injections. The ALEXYS system comprises the following parts:

  • AS 110 autosampler, cool
  • P6.1L HPLC pump
  • Clarity data acquisition software
  • DECADE Elite electrochemical detector
  • SenCell with GC WE, HyREF ALEXYS with DECADE Elite

The isocratic HPLC system has an additional pulsedamper option and pump for a high pressure gradient.


Part no Description
180.0074W ALEXYS EPA Phenols in water (isocratic)
180.0075W ALEXYS EPA Phenols in water (gradient)