Multimer ion adducts identified in metabolite standards.

Over one hundred pure metabolite standards were analyzed using the described LCMS method. Multimer ion adducts were identified in 24 of the metabolite standards.采用所述液相色谱-质谱联用（Liquid Chromatography-Mass Spectrometry，LCMS）方法，对一百余种纯代谢物标准品完成了分析测试。在其中24种代谢物标准品内，成功鉴定出多聚离子加合物（Multimer ion adducts）。