. Author manuscript; available in PMC: 2010 Sep 15.

Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Feb 21;877(26):2673–2695. doi: 10.1016/j.jchromb.2009.02.033

Table 1.

Head group-related ions observed in the product-ion spectra of the [M+Li]⁺ ions

^* Phospholipid	Head group (YH)	a
GPEtn		[M + Li - 43]⁺	[M + Li - 147]⁺	[M + Li - 141]⁺
GPSer		[M + Li - 87]⁺	[M + Li - 191]⁺	[M + Li - 185]⁺
GPGro		[M + Li - 74]⁺	[M + Li - 178]⁺	[M + Li - 172]⁺
GPA	H	[M + Li ]⁺	[M + Li- 104]⁺	[M + Li- 98]⁺

No study was conducted on the [M+Li]⁺ ions of GPIns.