Which of the following colour reagents are used in Resin column chromatography?(a) Marquis reagent(b) Benedict reagent(c) Ninhydrin(d) Nessler’s reagentI had been asked this question during an interview.This intriguing question originated from Amino-Acid Analysers in section Chromatography of Analytical Instrumentation

Which of the following colour reagents are used in Resin column chroma

1.	Which of the following colour reagents are used in Resin column chromatography?(a) Marquis reagent(b) Benedict reagent(c) Ninhydrin(d) Nessler’s reagentI had been asked this question during an interview.This intriguing question originated from Amino-Acid Analysers in section Chromatography of Analytical Instrumentation
Answer» The correct choice is (d) Nessler’s reagent For EXPLANATION I would say: Ninhydrin is the COLOUR reagent used in RESIN column chromatography. The colour REACTION occurs during a known period and controlled TEMPERATURE.

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