Additive-manufactured sensors for biofuel analysis: copper determination in bioethanol using a 3D-printed carbon black/polylactic electrode
We show that fused deposition modelling (FDM) 3D-printed electrodes can be used for quality control of fuel bioethanol. 3D-printing using carbon black/polylactic acid (CB-PLA) filaments resulted in conductive and biodegradable electrodes for biofuel analysis. As a proof-of-concept, copper determinat...
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Published in | Analytical and bioanalytical chemistry Vol. 412; no. 12; pp. 2755 - 2762 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.05.2020
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | We show that fused deposition modelling (FDM) 3D-printed electrodes can be used for quality control of fuel bioethanol. 3D-printing using carbon black/polylactic acid (CB-PLA) filaments resulted in conductive and biodegradable electrodes for biofuel analysis. As a proof-of-concept, copper determination in fuel bioethanol was performed, as such ions catalyse oxidation processes during storage and transport. Square-wave anodic-stripping voltammetry (SWASV) of copper was achieved after sample dilution in 0.1 mol L
−1
HCl as supporting electrolyte (resulting in 30:70%
v
/
v
ethanol:water). The linear responses were in the range between 10 and 300 μg L
−1
(
R
= 0.999), inter-day precision was lower than 8% (
n
= 10, for 20 μg L
−1
) and limits of detection (LOD) and quantification (LOQ) using 180 s as deposition time were 0.097 μg L
−1
and 0.323 μg L
−1
, respectively. Recovery values between 95 and 103% for the analysis of bioethanol spiked with known amounts of copper were obtained. These results show great promise of the application of 3D-printed sensors for the quality control of biofuels.
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1618-2642 1618-2650 |
DOI: | 10.1007/s00216-020-02513-y |