Citation
Aa. Bumber et al., Use of ultramicroelectrodes for determining lead in natural waters by stripping voltammetry, J ANALYT CH, 55(7), 2000, pp. 666-668
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348
→ ACNP
Volume
55
Issue
7
Year of publication
2000
Pages
666 - 668
Database
ISI
SICI code
1061-9348(200007)55:7<666:UOUFDL>2.0.ZU;2-5
Abstract
An in situ obtained graphite-fiber-based thin-film mercury microelectrode w
as used for determining lead(II) in natural water by stripping voltammetry
without removing oxygen and using no supporting electrolyte. Under the opti
mum voltammetric conditions (E-el = -1.2 V, t(el) = 5 min, c(Hg(II)) = 1 x
10(-7) M, Delta E = 40 mV, v = 105 mV/s), the calibration graph was linear
in the range of actual lead(II) concentrations in natural waters. At a lead
(II) concentration of 0.002 mg/L, the RSD was 11%.