Watson-shwartz differentiation test

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Last updated 6:24 AM on 11/28/25
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9 Terms

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Urobilinogen

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Porphobilinogen

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Ehrlich-reactive

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Urobilinogen/porphobilinogen

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Excess Urobilinogen

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WATSON-SCHWARTZ DIFFERENTIATION TEST

Classical test for differentiating among urobilinogen, porphobilinogen, and Ehrlich-reactive compounds.

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WATSON-SCHWARTZ DIFFERENTIATION TEST Tube 1:

Urine (2mL) + Chloroform (2mL) + Sodium Acetate (4mL)

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WATSON-SCHWARTZ DIFFERENTIATION TEST Tube 2:

Urine (2mL) + Butanol (2mL) + Sodium Acetate (4mL)