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fecl3 reacts with the -OH group which gives the purple colur

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14y ago
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5mo ago

The FeCl3 test for phenylketonuria is based on the reaction between phenylpyruvic acid in urine and FeCl3, forming a green-colored complex due to the chelation of the iron ion. This reaction is specific for detecting phenylketonuria because phenylpyruvic acid is elevated in individuals with this disorder, leading to the formation of the colored complex. The color intensity of the complex formed is directly proportional to the concentration of phenylpyruvic acid present in the sample.

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Q: What is the basic chemistry involved in the FeCl3 test for phenylketonuria?
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