Colorimetric Determination of Boron using Quinalizarin and Carmine

 

 

 

 

 

 

A study was conducted to investigate the determination of Boron colorimetrically using Quinalizarin and Carmine complexing agents.  Quinalizarin was found to be sensitive to water, which reduced the sensitivity of boron determination.  The carmine method was found to be more reliable. Boron content in a fertilizer sample was determined using the carmine method. Boron was determined in a fertiliser sample.

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