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Issue 33, 2020
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New, inexpensive and simple 3D printable device for nephelometric and fluorimetric determination based on smartphone sensing

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Abstract

A new, inexpensive and easy to use 3D printable device was developed for nephelometric and fluorimetric determination. Its applicability was tested for the quantification of quinine in tonic drinks and sulfate in natural water with good analytical accuracy. In this way, sulfate determination was carried out by nephelometry using a red LED, while quinine was determined using a blue LED by fluorimetry. A smartphone camera was used to take the pictures and afterwards transform them into the RGB color space using the software ImageJ by a personal computer. The linear range was 2.0–50.0 mg L−1 for sulfate with a LOD of 0.13 mg L−1, and the corresponding quantification limit (LOQ) was 0.43 mg L−1. The linear range for quinine was from 0.42 to 3.10 mg L−1. The LOD and LOQ were 0.11 mg L−1 and 0.38 mg L−1, respectively.

Graphical abstract: New, inexpensive and simple 3D printable device for nephelometric and fluorimetric determination based on smartphone sensing

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Supplementary files

Article information


Submitted
02 Apr 2020
Accepted
12 May 2020
First published
26 May 2020

This article is Open Access

RSC Adv., 2020,10, 19713-19719
Article type
Paper

New, inexpensive and simple 3D printable device for nephelometric and fluorimetric determination based on smartphone sensing

E. Vidal, A. S. Lorenzetti, M. Á. Aguirre, A. Canals and C. E. Domini, RSC Adv., 2020, 10, 19713
DOI: 10.1039/D0RA02975K

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