3D-printed flow system for determination of lead in natural waters

Type Article
Date 2017-06
Language English
Author(s) Mattio Elodie1, Robert-Peillard Fabien1, Branger Catherine2, Puzio Kinga2, Margaillan Andre2, Brach-Papa ChristopheORCID3, Knoery JoelORCID3, Boudenne Jean-Luc1, Coulomb Bruno1
Affiliation(s) 1 : Aix Marseille Univ, CNRS, LCE, UMR 7376, Marseille, France.
2 : Univ Toulon & Var, MAPIEM, La Garde, France.
3 : IFREMER, LBCM, Nantes, France.
Source Talanta (0039-9140) (Elsevier Science Bv), 2017-06 , Vol. 168 , P. 298-302
DOI 10.1016/j.talanta.2017.03.059
WOS© Times Cited 41
Keyword(s) Lead determination, 3D-printed MPFS system, Stereolithography, Natural waters
Abstract The development of 3D printing in recent years opens up a vast array of possibilities in the field of flow analysis. In the present study, a new 3D-printed flow system has been developed for the selective spectrophotometric determination of lead in natural waters. This system was composed of three 3D-printed units (sample treatment, mixing coil and detection) that might have been assembled without any tubing to form a complete flow system. Lead was determined in a two-step procedure. A preconcentration of lead was first carried out on TrisKem Pb Resin located in a 3D-printed column reservoir closed by a tapped screw. This resin showed a high extraction selectivity for lead over many tested potential interfering metals. In a second step, lead was eluted by ammonium oxalate in presence of 4-(2-pyridylazo)-resorcinol (PAR), and spectrophotometrically detected at 520 nm. The optimized flow system has exhibited a linear response from 3 to 120 µg L−1. Detection limit, coefficient of variation and sampling rate were evaluated at 2.7 µg L−1, 5.4% (n=6) and 4 sample h−1, respectively. This flow system stands out by its fully 3D design, portability and simplicity for low cost analysis of lead in natural waters.
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