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Peak Splitting in HPLC

What are common causes of peak splitting in HPLC?

How to resolve it?

@ard

The two common causes of peak splitting in HPLC are a blocked frit and a void in the packing at the head of the column.

  • The problem of the peak splitting can be solved by reverse flushing most of the times as it removes the contaminant from the column.
  • Washing the column with 90% Organic phase such as Acetonitrile or Methanol can also solved the problem.