【作者】 吴磊亮； 张海南； 李先文；

【Author】 WU Lei-liang,ZHANG Hai-nan and LI Xian-wen~*(Science School,Guangdong Ocean University,Zhanjiang 524088)

【机构】 广东海洋大学理学院；

【摘要】 以戊二醛为交联剂,使用壳聚糖膜,以磷钨酸与盐酸奎宁形成的分子缔合物为电活性物,制备一种基于壳聚糖膜的磷钨酸-奎宁药物传感器。传感器的响应范围为1.0×10^-2～3.2×10^-5mol/L,平均级差为57.0 mV/pC,传感器的检测限为1.0×10^-5mol/L,pH在3.0～6.0范围内,电势随pH变化不超过±1 mV。对盐酸奎宁的回收率为102.7%。此传感器制作简便,廉价,维护方便,操作灵活,响应迅速,稳定重现性好,可以用于盐酸奎宁药物含量的测定。更多还原

【Abstract】 With glutaraldehyde as bridging agent,this article uses the chitosan membrane,with the molecular association which is composed of phosphotungstic acid and quinine hydrochloride as electroactive substance to prepare phos-photungstic acid-quinine drug sensor which is based on chitosan membrane.The range of response of the transducer is 1.0×10^-2～3.2×10^-5 mol/L.Average grading 57.0 mV/pc,the detection limit of the transducer is 1.0×10^-5mol/L,pH in the 3.0～6.0,electric potential that changes with pH should not exceed by±1 mV;the recovery rate is 102.7%.Conclusion:This transducer is easy to operate and maintain and in a low price.It is used to measure the content of the hydrochloric acid quinine,agile to operate,quickly to response,stable and it has a good recall.更多还原