LI Lin-na, JIANG Tao-qin, YANG Hui-zhong. Research on solid state phosphate anion-selective electrode with double membrane[J]. 2016, 35(1): 43-45+48. DOI: 10.13873/J.1000-9787(2016)01-0043-03.
双层膜固态磷酸根离子选择电极研究
摘要
研究了一种以玻碳为基底电极
掺杂钴—氧化钴的聚苯胺为中间体
层状镁铝复合金属氧化物PVC膜为敏感膜
具有双层膜结构的固态磷酸根离子选择电极。该电极的检测磷酸二氢根的线性范围在10
-1
1
0
-4
mol/L之间
响应斜率为-32.3 m V/dec
检测下限为7.65×10
-5
mol/L
电极响应时间较快
且具有较强的稳定性和抗干扰能力。
Abstract
A phosphate ion-selective electrode
which is based on glassy carbon electrode as basal electrode
polyaniline doped cobalt ions as transducer layer
and layered Mg / Al complex metallic oxide PVC membrane as sensitive memberance
double solid state phosphate anion selection electrode with double membrane is studied. The results show that the electrode has a linear potential response at concentration range of 10
-1
10
-4
mol / L
with a slope of- 32. 3 mV / dec and a detection limit of 7. 65 × 10
-5
mol / L
it has short response time
good stability and capacity of resisting disturbance.
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