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本文报导一种以十二烷基三辛基碘化铵(DTOA-I)为定域体、邻苯二甲酸二丁酯为增塑剂的 PVC 膜 Au(CN)_2~-电极的制备方法.较佳的膜组成为 DTOA-I 5mg;DBP0.4ml;PVC90mg.该电极对 Au(CN)_2~-在浓度为5×10~(-7)～10~(-2)M 范围内接近能斯特响应,响应斜率为57.0mV(16℃);稳定性和选择性较好.
This paper reports a preparation method of PVC membrane Au (CN) _2 ~ -electrode with dodecyl trioctyl ammonium iodide (DTOA-I) as the domain and dibutyl phthalate as plasticizer The optimal membrane composition was DTOA-I 5mg, DBP 0.4ml and PVC90mg.The electrode pairs of Au (CN) 2 ~ were close to the concentration range of 5 × 10 -7 -7 10 -2 Nernst response, the response slope of 57.0mV (16 ℃); stability and selectivity better.