Dopamine hydrochloride was purchased from Fluka AG (Switzerland). All other chemicals were of analytical grade. Nafion ® (5 wt.% ethanol solution) was obtained from Aldrich Co. The phosphate buffer solutions were made up with 0.05 M NaH2PO 4 and 0.05 M Na2HPO 4. The dopamine hydrochioride and ascorbic acid solutions were prepared with phosphate buffer and the electrochemical experiments were kept under nitrogen atmosphere. All solutions were prepared with twice distilled water.
第1个回答 2007-05-18
神经传导物质 hydrochloride 从 Fluka AG 被购买。 (瑞士) 所有的其他化学药品是有分析的等级。 Nafion? (5 wt。%乙醇解决)从 phosphate 缓冲解决与 0.05 M NaH2PO 4 和 0.05 M Na2HPO 4 一起化妆的 Aldrich 公司被获得. 解决与 phosphate 缓冲一起准备的神经传导物质 hydrochioride 和 ascorbic 酸和电气化学的实验在氮大气之下被保持。 所有的解决与两次一起准备蒸馏了水。
第2个回答 2007-05-18
神经传导物质 hydrochloride 被从 Fluka AG(瑞士) 购买。 所有的其他化学药品是有分析等级的。 Nafion? (5 wt。% 乙醇解决) 被从 Aldrich 公司获得磷酸盐缓冲解决与 0.05 M NaH2 波河 4 而且 0.05M Na2 HPO 4 一起完成 . 神经传导物质 hydrochioride 和 ascorbic 酸解决与磷酸盐缓冲一起准备,而且电气化学的实验被在氮气氛之下保持。 所有的解决与两次蒸馏的水一起准备。本回答被网友采纳