Chlorophyll a and pheopigments index in fresh waters

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Description of the programme

These interlaboratory comparisons (AGLAE's programme ‘1C’) in surface waters enable to meet the requirements of:

  • accreditation scopes related to physico-chemical analyses in waters (check AGLAE's accreditation Cofrac No. 1-1664)
  • approvals issued by Departments of environment

List of parameters

Détail des paramètres mis en oeuvre

Chlorophyll a and pheopigments index: after extraction, measurement of the absorbance by molecular absorption spectrometry then calculation of the concentrations using the LORENZEN or the SCOR-UNESCO equation