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Table 4 Potential outcomes of pre-tests to determine the suitability of in vivo fluorescence analysis and their interpretation

From: Testing particles using the algal growth inhibition test (OECD 201): the suitability of in vivo chlorophyll fluorescence measurements

Case Suspension containing: Interpretation Suitability of in vivo fluorescence
Algae (i) Materials (ii) Algae + materials (iii)
1 Fluorescence signal No/low fluorescence signal Fluorescence signal comparable to (1) No interference Yes
2 Fluorescence signal No / low fluorescence signal Reduced fluorescence signal compared to (1) Reduction of fluorescence by materials No
3 Fluorescence signal Fluorescence signal Fluorescence signal Autofluorescence of materials No