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


Annexes


Annexes

pdf pts_1c_chlorophyll_a_pheopigments_index_fresh_waters_2022.pdf


pdf aglae_-_2022_proficiency_tests_4.pdf