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p-Dimethylaminobenzaldehyde (DMAB), ea. (5g/bottle)
p-Dimethylaminobenzaldehyde (DMAB), ea. (5g/bottle)


 

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Product Number: 3700-0400
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Description
 
Chromatographic Grade™

For Post-column Analysis of Sulfa Drugs in feed and animal tissues

p-Dimethylaminobenzaldehyde (DMAB; Ehrlich's Reagent) reacts rapidly with many primary amines to form a complex with maximum absorbance at 450nm Reversed-phase LC followed by post-column derivatization is used to determine the levels of Sulfamethazine, Sulfathiazole and related compounds in feeds, premixes and animal tissues. Although these compounds have a UV chromophore, so do most of the other constituents in the complex sample matrix. Forming a colored derivative post-column allows shifting of the detection wavelength into the visible range thus greatly enhancing selectivity.


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