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		<doi>10.1016/j.tsf.2017.01.051</doi>
		<issn>0040-6090</issn>
		<citationkey>SardinhaAranCrisFerr:2017:MiNaBo</citationkey>
		<title>From micro to nanocrystalline boron doped diamond applied to cadmium detection</title>
		<year>2017</year>
		<month>Mar.</month>
		<typeofwork>journal article</typeofwork>
		<secondarytype>PRE PI</secondarytype>
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		<author>Sardinha, André Ferreira,</author>
		<author>Arantes, Tatiane M.,</author>
		<author>Cristovan, Fernando H.,</author>
		<author>Ferreira, Neidenei Gomes,</author>
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		<group>LABAS-COCTE-INPE-MCTIC-GOV-BR</group>
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		<group>LABAS-COCTE-INPE-MCTIC-GOV-BR</group>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Federal Goiano</affiliation>
		<affiliation>Universidade Federal de São Paulo (UNIFESP)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<electronicmailaddress>andre.sardinha@inpe.br</electronicmailaddress>
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		<electronicmailaddress>neidenei.ferreira@inpe.br</electronicmailaddress>
		<journal>Thin Solid Films</journal>
		<volume>625</volume>
		<pages>70-80</pages>
		<secondarymark>A1_ENGENHARIAS_IV A1_ENGENHARIAS_II A2_MATERIAIS A2_INTERDISCIPLINAR A2_ENGENHARIAS_III B1_MEDICINA_II B1_CIÊNCIA_DE_ALIMENTOS B2_QUÍMICA B2_CIÊNCIAS_BIOLÓGICAS_II B2_CIÊNCIAS_BIOLÓGICAS_I B2_BIOTECNOLOGIA B2_ASTRONOMIA_/_FÍSICA B5_ENSINO</secondarymark>
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		<keywords>Boron doped diamond, Cadmium detection, Heavy metals, Square wave anodic stripping voltammetry.</keywords>
		<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&#8722; 4 mol L&#8722; 1 ammonium acetate buffer pH 4.2. The peak currents were measured for Cd2 + concentration ranging from 1 to 20 &#956;g L&#8722; 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 &#956;g L&#8722; 1 while for BDND electrode DL reached 0.016 &#956;g L&#8722; 1. These values are lower than that required by the Brazilian Health Ministry for potable water (1 &#956;g L&#8722; 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.</abstract>
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		<language>en</language>
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