DOPR reagent analysis

There are more substances than colors, so to increase analysis precision use a kit with multiple reagents. Exact color of a reaction depends on adulteration, quantity, lighting, temperature, exposure to air, storage, as well as reagent quality and degradation. Positive or negative result does not indicate if a substance is safe. No substance is 100% safe.

DOPR

dopr

Reagent colour reaction chart for DOPR
Documented reagent colour reactions for DOPR.

Marquis reagent — DOPR

White · Brown

DOPR

Source text (English): brownish

Mecke reagent — DOPR

White · Brown · Green

DOPR

Source text (English): green

Mandelin reagent — DOPR

Yellow · Green

DOPR

Source text (English): green

Liebermann reagent — DOPR

White · Green

DOPR

Source text (English): dark green

Froehde reagent — DOPR

White · Yellow · Green

DOPR

Source text (English): yellow > light green

Gallic reagent — DOPR

No reaction

DOPR

Source text (English): no color change

Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.

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