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菠菜组织微电极是一种新型的酶电极。应用该电极测定神经递质多巴胺(DA)时表现出较高的灵敏度和较好的选择性,它能够有效地消除抗坏血酸(AA)的干扰。其线性范围为1.7×10~(-6)～1.6×10~(-4)mol/L,检出下限为7.1×10~(-7)mol/L。对其在体测定DA的可行性研究,表明它是一种能够用于在体测神经递质的微电极。
Spinach tissue microelectrode is a new type of enzyme electrode. The electrode showed high sensitivity and good selectivity for the determination of neurotransmitter dopamine (DA), which can effectively eliminate the ascorbic acid (AA) interference. The linear range was 1.7 × 10 -6 -6 1.6 × 10 -4 mol / L, the detection limit was 7.1 × 10 -7 mol / L. Feasibility studies on its in vivo determination of DA indicate that it is a microelectrode that can be used to measure neurotransmitters in vivo.