| Urobilinogen reacts with a chromogen to form an azo dye which appears as various shades of pink or purple. |
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| After incubation, the color was developed with the peroxidase substrate and the stable chromogen. |
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| Immunoreactivity was visualized using diaminobenzidine as the chromogen, with Harris modified hematoxylin as the counterstain. |
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| The extract from the heartwood is not a dye until it undergoes oxidation into hematein, which is an acid chromogen. |
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| Immunohistochemistry was performed on an automated immunostainer using the antibodies listed in Table 2 with diaminobenzidine as the chromogen. |
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| These nitrites then react to form a diazonium salt which in turn reacts with a chromogen to produce the final color. |
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| The second step was a normalization of the staining intensity range to adjust for batch specific background and maximal staining intensity by the chromogen. |
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| They can be detected by an attack on deoxyribose which originates fragments which, when heated with thiobarbituric acid at low pH, will generate a pink chromogen. |
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| The latter enzyme reacts with a chromogen to produce the final color. |
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| A positive reaction is indicated if there is a colour reaction on the addition of chromogen and substrate. |
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| It is produced as a consequence of the mycelim of certain chromogen fungi that eat the reserve substances accumulated in the sapwood. |
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| The chromogen is oxidized by a hydroperoxide in the presence of haem and changes colour from yellow to blue. |
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| Witt suggested the term chromogen for specific chromophore-auxochrome combinations. |
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| Diaminobenzidine was used as a chromogen and diaminobenzidine enhancer was applied, and hematoxylin was used for counterstaining. |
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| Add substrate and chromogen as described previously. |
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| Then, this binding is measured by means of a substrate and chromogen. |
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