Determination of Pb(II) and Cu(II) in microemulsified biodiesel using boron-doped diamond electrode

•Simultaneous determination of Pb(II) and Cu(II) in biodiesel samples by a voltammetric technique.•Application of microemulsion as a pretreatment step to turn biodiesel in a simple matrix to analyze.•The use of BDD electrode as working electrode without modification with good results. This study des...

Full description

Saved in:
Bibliographic Details
Published in:Microchemical journal 2020-07, Vol.156, p.104849, Article 104849
Main Authors: dos Santos, Gabriel F.S., Ferreira, Rafael de Q.
Format: Article
Language:English
Subjects:
BDD
Biodiesel
Microemulsion
SWASV
Trace metals
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Simultaneous determination of Pb(II) and Cu(II) in biodiesel samples by a voltammetric technique.•Application of microemulsion as a pretreatment step to turn biodiesel in a simple matrix to analyze.•The use of BDD electrode as working electrode without modification with good results. This study describes an electrochemical alternative to quantify metals in biodiesel, since this matrix present a complex structure. This methodology use square wave anodic stripping voltammetry (SWASV) associated with an unmodified boron-doped diamond (BDD) electrode to determine Pb(II) and Cu(II) in microemulsified biodiesel. The procedure was applied in samples of biodiesel from corn oil, allowing finding a LOD of 2.70 × 10−8 and 4.00 × 10−9 mol L−1 for Pb(II) and Cu(II), respectively, with satisfactory recovery values (95.8 – 118.1%) which are comparable with other convetional analysis described in the literature. [Display omitted]
ISSN:0026-265X
1095-9149
DOI:10.1016/j.microc.2020.104849