江南大学 轻工过程先进控制教育部重点实验室
纸质出版:2013
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[1]宋小娟,杨慧中.基于红菲绕啉银的硝酸根离子选择电极研究[J].传感器与微系统,2013,32(10):41-43+47.
SONG Xiao-juan, YANG Hui-zhong. Study on nitrate ion-selective electrode based on silver bis (bathophenanthroline) nitrate[J]. 2013, 32(10): 41-43+47.
[1]宋小娟,杨慧中.基于红菲绕啉银的硝酸根离子选择电极研究[J].传感器与微系统,2013,32(10):41-43+47. DOI: 10.13873/j.1000-97872013.10.002.
SONG Xiao-juan, YANG Hui-zhong. Study on nitrate ion-selective electrode based on silver bis (bathophenanthroline) nitrate[J]. 2013, 32(10): 41-43+47. DOI: 10.13873/j.1000-97872013.10.002.
研究了一种硝酸根离子选择电极
该电极以红菲绕啉银作为活性物质(I)
以四十二烷基溴化铵(TDAB)为添加剂
以邻硝基苯苯醚(NPPE)为增塑剂
以聚氯乙烯(PVC)为基膜。经过实验比较
得到对硝酸根有最佳响应的膜比例是I∶PVC∶TDAB∶NPPE为3∶32∶1∶64(重量比)
其能斯特响应的线性范围为10-1
1
0-5mol/L
斜率为-54 mV/dec
检测下限是3.7×10-6mol/L。考查了电极的pH范围
干扰离子的影响
响应时间。结果表明:该电极在pH为2.5
9
.5的范围内比较稳定;对于其他离子的选择性系数的数量级均在10-2及以下;响应时间在1 min之内。该电极选择性好
反应迅速
制作简单
对水中硝酸根的检测具有一定的研究意义。
A nitrate ion-selective electrode is investigated by using silver bis(bathophenanthroline) nitrate as sensing material(I)
tetradodecylammonium bromide(TDAB) as lipophilic cationic additive
and nitrophenylphenyl ether(NPPE) as plasticizing solvent
polyvinyl chloride(PVC) as basement membrane.Through experiments
the obtained optimal response membrane ratio I∶PVC∶TDAB∶NPPE to nitrate is 3∶32∶1∶64(W/W).The Nernst linear response range is 1×10-1
1
×10-5mol/L to nitrate with a slope of-54 mV/dec and the lowest detection limitation is 3.7×10-6mol/L.The pH value range
influence of interfering ions and response time are studied.The results indicate t
hat the electrode is stable at range of pH value 2.5
9
.5 with a fast response time within 1 min.The selectivity coefficients of other ions are in the order of 10-2 or even lower.The electrode has good selectivity to nitrate
fast response and is easy to fabricate
which has certain research significance to nitrate detection in water.
太湖蓝藻事件探析 [J]. 董敬锋,刘锦文. 新西部(理论版) . 2012(04)
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Theoretical and experimental studies of metallated phenanthroline derivatives as carriers for the optimization of the nitrate sensor [J] . George E Andredakis,Elizabeth A Moschou,Katherine Matthaiou,George E Froudakis,Nikolas A Chaniotakis. Analytica Chimica Acta . 2001 (2)
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