引用本文:
庄云龙, 漆德瑶. 钠离子选择性双管微电极及在生物医学中的适用性[J]. 应用化学,
1990, 7(5): 94-96.
Citation: Zhuang Yunlong, Qi Deyao. DOUBLE-BARRELED SODIUM ION-SELECTIVE MICROELECTRODE FOR BIOMEDICAL MEASUREMENTS[J]. Chinese Journal of Applied Chemistry, 1990, 7(5): 94-96.
Citation: Zhuang Yunlong, Qi Deyao. DOUBLE-BARRELED SODIUM ION-SELECTIVE MICROELECTRODE FOR BIOMEDICAL MEASUREMENTS[J]. Chinese Journal of Applied Chemistry, 1990, 7(5): 94-96.
钠离子选择性双管微电极及在生物医学中的适用性
English
DOUBLE-BARRELED SODIUM ION-SELECTIVE MICROELECTRODE FOR BIOMEDICAL MEASUREMENTS
Abstract:
A double-barreled sodium ion-selective microelectrode based on N, N'-bis(dibenzyl)-3,6-dioxaoctyl diamide, with tip diameter of 2.5μm, has been constructed. The microelectrode shows a linear relationship in the range of 10-3~5×10-1mol·dm-3(25℃) in NaCl solution.The selectivity coefficients with respect to K+, Mg2+, and Ca2+ are 0.053, 6.2×10-4, and 5.8×10-3, respectively. The response characteristics of the microelectrode for Na+ in body fluids was measured. The Na+ concentrations in some clinical microsamples were determined using this microelectrode.
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