【摘 要】
：
以TDAA—1—AuCl_4缔合物为电活性物质,研制了一种PVC膜Au(Ⅲ)离子选择电极,其对于Au(Ⅲ)的Nernst响应在5×10~(-7)-4×10~(-4)M范围内为57mV。本文详细地测试了电极的响应时
【机 构】
：
山西大学化学系,山西大学化学系 进修教师
论文部分内容阅读
以TDAA—1—AuCl_4缔合物为电活性物质,研制了一种PVC膜Au(Ⅲ)离子选择电极,其对于Au(Ⅲ)的Nernst响应在5×10~(-7)-4×10~(-4)M范围内为57mV。本文详细地测试了电极的响应时间、稳定性、重现性、内阻及常见阴离子和部分阳离子的电势选择性系数,并用该电极测定了岩石矿物中的微量金、获得了较满意的结果。
A PVC membrane Au (Ⅲ) ion selective electrode was developed by using TDAA-1-AuCl_4 association compound as electroactive material. Its Nernst response to Au (Ⅲ) was in the range of 5 × 10 -7 -4 × 10 ~ (-4) M within the range of 57mV. In this paper, the electrode response time, stability, reproducibility, internal resistance and the potential selectivity of common anions and some cations were tested in detail. The determination of trace gold in rock and mineral by the electrode was carried out, and the satisfactory results were obtained.
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