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Un chantillon inconnu de 3,0 cm' de quinine a produit une fluorescence de 110. Aprs addition de 0,5 cm' de quinine 5 ppm, la fluorescence

Un chantillon inconnu de 3,0 cm' de quinine a produit une fluorescence de 110. Aprs addition de 0,5 cm' de quinine 5 ppm, la fluorescence s'est avre tre de 120. Calculez la concentration de la solution de quinine inconnue.

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