08 August 2018 0 2K Report

Professional advise will be appreciated, What potential risks if my sample solvent is stronger than my mobile phase in HPLC analysis? What happen or causes and solution

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Kindly assist about the evaluation of the concentration of the standard preparation against an independent standard preparation, prior to determine the selected sample calibration curve graph.

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What is most recommended samples purification between Column chromatography and Preparative Layer Plates (PLC) for HPLC analysis?

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Which method of separation is more preferable, HPLC, NMR or GC for the determination of diatereoselectivity in polar or non-polar aldol products?

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What is simple methodology for the determination of diastereoselectivity by H NMR in the reaction mixture?

I need comprehensive procedure for the determination of diastereoselectivity by H NMR in the reaction mixture?

05 June 2018 7,161 2 View

Problem with ChiralPack IB column, can anyone help with best cleaning procedure?

Please, I have problems with ChiralPack IB column, can anyone suggest any possible solution because having poor baseline and can't find corresponding peaks.

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