What criteria should I use for the selection of liquid chromatography (LC) or capillary electrophoresis (CE) as separation and analysis technique?

One criteria for selecting LC over CE is when analytes exhibit variations in size, charge, and hydrophobicity. LC also provides better control over separation conditions, allowing for adjustments in mobile phase composition. Another criteria is when longer separation times are acceptable. LC typically allows for longer separation times compared to CE. Lastly, LC is preferred over CE when working with complex samples containing different compounds.