1968 Volume 32 Issue 4 Pages 417-423
Modifications of the anthrone-sulfuric acid method and the phenol-sulfuric acid method are described. By employing the principle of two-point determination of Mokrasch and by modifying the conditions for color development, fructose in the presence of 100-fold excess of glucose can be determined with an error of about 15% by the modified anthrone-sulfuric acid method. The modified phenol-sulfuric acid method also gave the same order of sensitivity and specificity to fructose as the modified anthrone-sulfuric acid method.
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