摘要
研究了以间苯二酚杯 [4 ]芳烃为敏感涂层的石英压电晶体 (PQC)传感器 ,在中性磷酸盐缓冲液体系中对神经传递质多巴胺和抗坏血酸的响应 ,发现间苯二酚杯 [4 ]芳烃对多巴胺有很好的响应选择性 ,这归因于间苯二酚杯 [4 ]芳烃与多巴胺分子结构相匹配 ,形成主客体超分子体系 .以间苯二酚杯 [4 ]芳烃为涂层的PQC传感器对液相中多巴胺具有响应快、重现性好、灵敏度高的特点 ,线性响应范围为 3.5～ 5 0 0 μg
The resorcincalix[4]arene derivative has been synthesized and studied as a sensitive material for the determination of dopamine in liquid through a piezoelectric quartz crystal (PQC) sensor. The PQC-coated resorcincalix[4]arene is highly selective for dopamine in comparison with ascorbic acid. The new selectivity dimension is attributed to host-guest interactions between resorcincalix [4] arene and dopamine. The PQC is used for monitoring of dopamine in liquid at phosphate buffer (pH = 7.40) with fast response time, good sensitivity and reproducibility. It exhibits a linear response in the range 3.5 similar to 500 mug/g of dopamine.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2002年第6期1084-1087,共4页
Acta Chimica Sinica
基金
国家自然科学基金资助项目 (No .2 9975 0 14
2 0 175 0 0 9)
