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Miniaturized reference electrodes based on Ag/AgiX internal reference elements. I. Manufacturing and performance

机译:基于Ag / AgiX内部参比元素的小型参比电极。一,制造与性能

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We report the manufacturing and performance of miniaturized reference electrodes (MREs) of wide applicability, with highly stable potential in both aqueous and organic media, and minimal low sensitivity to Cl- ions (- 3.4 mV/log a(Cl-)) and pH (0.082 mV/pH). These MREs are based on an Ag/AgiX internal reference element (IRE), where AgiX is a low solubility silver salt (X = Cl-, SCN-, or PO43-). IREs are imbedded in a photopolymerized acrylic hydrogel, with no solid salt supply present in the system. Polymer matrices were tested for swelling/dissolution, and for loss of both electrolyte and silver ions. MREs have a potential stability of +/-0.5 mV over 30 h, and a low temperature coefficient of 0.15 mV K-1 (in the range of 281.8-298.6 K). [References: 59]
机译:我们报道了具有广泛适用性的微型参比电极(MRE)的制造和性能,在水性和有机介质中均具有高度稳定的电势,并且对Cl-离子(-3.4 mV / log a(Cl-))和pH值的灵敏度低至最低(0.082 mV / pH)。这些MRE基于Ag / AgiX内部参考元素(IRE),其中AgiX是低溶解度的银盐(X = Cl-,SCN-或PO43-)。 IRE嵌入光聚合丙烯酸水凝胶中,系统中不存在固体盐。测试聚合物基质的溶胀/溶解性,以及电解质和银离子的损失。 MRE在30小时内的电位稳定性为+/- 0.5 mV,低温系数为0.15 mV K-1(在281.8-298.6 K范围内)。 [参考:59]

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