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Introd./ Rai, H.: Some problems in determination of photosyntheticpigments and their decomposition products/ Nusch, E.A.: Comparison ofdifferent methods for chlorophyll and phaeopigment determination/ Rott, E.: Spectrophotometric and chromatographic chlorophyll analysis:comparison of results and discussion of the trichomatic method/ Lenz,J.and Fritsche, P.: The estimation of chlorophyll in a water sample. Acomparative study on retention in a glass-fibre and membrane filter andon the reliability of two storage methods/ Marker, A., Crowther, C.A.and R.J.M.Gunn: Methanol and acetone as solvents for estimating chlorophyll A and phaeopigments by spectrophotometry/ Riemann, B.:A note on the use of methanol as an extraction solvent for chlorophyll Adetermination/ Staub, E.: Two chromatographic separation methods forchlorophyll analysis: TLC and its transformation to modern HPLC (abstract)/ Tolstoy, A.: Information on the standardization of pigmentmethodology in Nordic countries/ Marker, A.F.H.: A note on theextraction of chlorophyll from benthic algae using methanol/ Marker,A.F.H., Nusch, E.A., Rai, H. and B.Riemann: The measurement ofphotosynthetic pigments in freshwaters and standardization of methods:Conclusions and recommendations.