采用了AtlantisC18反相色谱柱(适用于分离极性分子的反相色谱柱),成功地分离了去甲肾上腺素(NA),肾上腺素(A),多巴胺(DA)等儿茶酚胺(CAs)类物质,研究了CAs在Atlantis C18和Novle pak C18柱的保留特性,比较了流动相中离子对试剂辛烷基磺...采用了AtlantisC18反相色谱柱(适用于分离极性分子的反相色谱柱),成功地分离了去甲肾上腺素(NA),肾上腺素(A),多巴胺(DA)等儿茶酚胺(CAs)类物质,研究了CAs在Atlantis C18和Novle pak C18柱的保留特性,比较了流动相中离子对试剂辛烷基磺酸钠(B8)浓度对CAs容量因子k’的作用,确认采用AtlantisC18柱分离CAs,色谱条件优化空间更大,更适于复杂生物样品分析。色谱条件:Atlantis C18柱,电化检测,流动相:NaH2PO450 mmol/L、柠檬酸钠50 mmol/L缓冲液-乙腈(体积比(75∶25),检测限(S/N=2)在0.93—2.43pg,绝对回收率均在98.02%以上,样品日内RSD1.5%以下。方法精密、准确。展开更多
基金This work was supported by the Natural Science Foundation of Jiangsu Province(No.04KJA180110),Social Development Foundation of Nantong(No.S40057,S5040),the National Natural Science Foundation of China(No. 30370462),the NSFC-RGC Joint Research Scheme of the National Natural Science Foundation of China(No.30318004)and RFDP of the State Educational Ministry of China(No. 20050284025).