| 摘要 |
PCT No. PCT/IL96/00071 Sec. 371 Date Mar. 30, 1998 Sec. 102(e) Date Mar. 30, 1998 PCT Filed Aug. 4, 1996 PCT Pub. No. WO97/06432 PCT Pub. Date Feb. 20, 1997A highly sensitive assay for the determination of Cr(VI), in the presence of Cr(III) and in the presence of other cations by cyclic voltammetry. The determination is carried out with a gold or gold-plated electrode with a self-assembled monolayer of a pyridine derivative of the kind of 4-(2-ethanethiol) pyridine. Determinations can be affected at extremly low levels of the order of 1 ppt (part per trillion 1012). |
