A PIEZOELECTRIC IMMUNOBIOSENSOR FOR ATRAZINE IN DRINKING-WATER

被引:140
作者
GUILBAULT, GG [1 ]
HOCK, B [1 ]
SCHMID, R [1 ]
机构
[1] GESELL BIOTECHNOL FORSCH GMBH,W-3300 BRAUNSCHWEIG,GERMANY
关键词
IMMUNOBIOSENSOR; PIEZOCRYSTAL; HERBICIDES; ATRAZINE; ANTIBODIES;
D O I
10.1016/0956-5663(92)85040-H
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
A piezoelectric crystal immunobiosensor has been developed for the assay of atrazine herbicides in drinking water. Determinations from 0-03-100-mu-g l-1 (parts per billion) of atrazine can be made with a relative SD of about +/-8%. Atrazine antibodies (polyclonal from sheep) are layered onto the gold electrode of 10 MHz piezoelectric crystals, which are precoated with protein A. The sensor is reversible, being reusable for about eight or nine assays.
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页码:411 / 419
页数:9
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