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Corresponding OH concentration and temperature profiles were determined for a variety of low-pressure flames using the method of laser-induced saturated fluorescence as described earlier by the authors. For the example of a well-characterized H2-O2-Ar flame, the parameters influencing the accuracy of species concentration and temperature measurements are discussed in detail. Good agreement with both literature data and a chemical-kinetic computer model was obtained. The temperature was shown to be a sensitive parameter in the modelling. For different flame conditions, OH concentration and temperature profiles in CH4-O2 and C2H2-O2 flames are reported which may be used for detailed comparisons with chemical-kinetic flame models.