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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Prog Lipid Res. 2011 Mar 31;50(3):278–301. doi: 10.1016/j.plipres.2011.03.003

Figure 13.

Figure 13

A positive ion mode ESI mass spectrum of a mixture of common plasticizers and plastic stabilizers extracted from an Eppendorf tube upon its exposure to a chloroform:methanol (1/1, v/v) solvent mixture. The signals of fatty acid amides are labeled according to the length of their carbon chains. The ions of both types, (M + H)+ and (M + Na)+, were detected. A very similar pattern was reported by Nichols et al [94], and was erroneously attributed to the lipids present in meibomian gland secretions.