【摘要】 本文首次报道用安培电化学检测器探讨毛细管电泳分离的场放大进样效应，分析了系统峰的形成以及场放大进样对电泳分离检测的影响。采用25μm内径毛细管电泳分离，对去甲肾上腺素（NE）和儿茶酚（CAT）分别可达0．4nmol／L和1．5nmol／L的浓度检测限，有效提高了毛细管电泳安培法检测的灵敏度。更多还原

【Abstract】 Field-amplified sample injection in capillary electrophoresis with amperometric detection is reported. The effects of the injection mode on separation and detection are discussed. The concentration limits of 0. 4 nmol/L for NE and 1. 5 nmol/L for catechol are achieved in 25 μm i. d. capillary.更多还原