How can we spot the PhosphatidylEthanolamine band in TLC?

While doing TLC of phospholipids we can obtain bands of phosphatidylcholine(PC) by iodine vapours but the band of phosphatidylethanolamine bandor spot doesn't exist so what may be the reason for that or which other reagent can be used inplace of iodine or ninhydrin which also doesn't give band.