Quantification of the amount of 1-(1-enyl-palmitoyl)-2-linoleoyl-GPE (P-16:0/18:2) in a sample. The trait is 1-(1-enyl-palmitoyl)-2-linoleoyl-GPE (P-16:0/18:2) measurement (EFO_0800440, an Experimental Factor Ontology entry).