@Article{SardinhaAranCrisFerr:2017:MiNaBo,
author = "Sardinha, Andr{\'e} Ferreira and Arantes, Tatiane M. and
Cristovan, Fernando H. and Ferreira, Neidenei Gomes",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Federal Goiano} and {Universidade Federal de S{\~a}o Paulo
(UNIFESP)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "From micro to nanocrystalline boron doped diamond applied to
cadmium detection",
journal = "Thin Solid Films",
year = "2017",
volume = "625",
pages = "70--80",
month = "Mar.",
keywords = "Boron doped diamond, Cadmium detection, Heavy metals, Square wave
anodic stripping voltammetry.",
abstract = "Cadmium detection was investigated by Square Wave Anodic Stripping
Voltammetry (SWASV) measurements by using boron doped diamond
electrodes with different morphologies from micro to
nanocrocrystalline grains as Boron Doped Diamond (BDD) and Boron
Doped Nanocrystalline Diamond (BDND), respectively. The argon
concentrations, in the argon/hydrogen ratio, used were 0, 50, 60,
70, and 80 vol.%. SWASV technique was applied in 4 × 10\− 4
mol L\− 1 ammonium acetate buffer pH 4.2. The peak currents
were measured for Cd2 + concentration ranging from 1 to 20
\μg L\− 1. This change in film grain size and
roughness affected how cadmium was deposited on the electrode
surfaces, thus affecting its electroanalytical response from SWASV
measurements as well as its selectivity. For all electrodes
cadmium detection limits (DL) were lower than 1 \μg
L\− 1 while for BDND electrode DL reached 0.016 \μg
L\− 1. These values are lower than that required by the
Brazilian Health Ministry for potable water (1 \μg
L\− 1) and confirm that diamond electrodes are a suitable
mercury-free method to determine cadmium trace levels in water. A
strong correlation between the electrode selectivity and its grain
size also confirmed the best performance of BDND electrode.",
doi = "10.1016/j.tsf.2017.01.051",
url = "http://dx.doi.org/10.1016/j.tsf.2017.01.051",
issn = "0040-6090",
language = "en",
targetfile = "sardinha_from.pdf",
urlaccessdate = "20 set. 2024"
}