Fluorescence and Naked-Eye Detection of Pb2+ in Drinking Water Using a Low-Cost Ionophore Based Sensing Scheme

Aron Hakonen; Niklas Strömberg

doi:10.20944/preprints201810.0136.v1

Preprint Communication Version 1 This version is not peer-reviewed

Fluorescence and Naked-Eye Detection of Pb²⁺in Drinking Water Using a Low-Cost Ionophore Based Sensing Scheme

Aron Hakonen ^* and

Niklas Strömberg

Version 1 : Received: 7 October 2018 / Approved: 8 October 2018 / Online: 8 October 2018 (10:27:11 CEST)
Version 2 : Received: 29 October 2018 / Approved: 30 October 2018 / Online: 30 October 2018 (07:42:15 CET)

A peer-reviewed article of this Preprint also exists.

Hakonen, A.; Strömberg, N. Fluorescence and Naked-Eye Detection of Pb²⁺ in Drinking Water Using a Low-Cost Ionophore Based Sensing Scheme. Chemosensors 2018, 6, 51. Hakonen, A.; Strömberg, N. Fluorescence and Naked-Eye Detection of Pb2+ in Drinking Water Using a Low-Cost Ionophore Based Sensing Scheme. Chemosensors 2018, 6, 51.

Journal reference: Chemosensors 2018, 6, 51
DOI: 10.3390/chemosensors6040051

Abstract

Drinking water contamination of lead from various environmental sources, leaching consumer products and intrinsic water-pipe infrastructure is still today a matter of great concern. Therefore, new highly sensitive and convenient Pb²⁺ measurement schemes are necessary, especially for in-situ measurements at a low-cost. Within this work dye/ionophore/Pb²⁺ co-extraction and effective water phase de-colorization was utilized for highly sensitive lead measurements and sub-ppb naked-eye detection. Low-cost ionophore Benzo-18-Crown-6-ether was used, and a simple test-tube mix, shake and separate procedure was developed. Instrumental detection limits were in the low ppt region (LOD=3, LOQ=10), and naked-eye detection was 500 ppt. Note, however, that this sensing scheme still has improvement potential as concentrations of fluorophore and ionophore were not optimized. Artificial tap-water samples, leached by a standardized method, demonstrated drinking water application. Implications for this method are convenient in-situ lead ion measurements.

Subject Areas

lead ions; fluorescence detection; ionophore; Benzo-18-Crown-6-ether; drinking water

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Download PDF

Comments (0)

Your full name

Your affiliation information (e.g., name of your university/institution/organization)

Not displayed online.

Your Email address (not made public)

Please leave your comment to this article below.

Mathematical equations can be typed in either LaTeX formats \\[ ... \\] or $$ ... $$, or MathML format <math> ... </math>. Try the LaTeX or MathML example.

Type equation:

Preview:

Copy equation into message below

Close menu

Please click a symbol to insert it into the message box below:

Please enter the link here:

Optionally, you can enter text that should appear as linked text:

Copy link into message below

Close menu

Please enter or paste the URL to the image here (please only use links to jpg/jpeg, png and gif images):

Copy image into message below

Close menu

Type author name or keywords to filter the list of references in this group (you can add a new citation under Bibliography):

No existing citations in Discussion Group

Wikify editor is a simple editor for wiki-style mark-up. It was written by MDPI for Sciforum in 2014. The rendering of the mark-up is based on Wiky.php with some tweaks. Rendering of mathematical equations is done with MathJax. Please send us a message for support or for reporting bugs.

Close menu

Please declare any conflicts of interest you may have with this paper, financial or otherwise.

I do not have a conflict of interest

I would like to declare a conflict of interest

Display my name on the website I want to get recognition for my comment on Publons

[what’s this?]. Link your accounts here

Captcha

I accept the following conditions:

Comments must follow the standards of professional discourse and should focus on the scientific content of the article. Insulting or offensive language, personal attacks and off-topic remarks will not be permitted. Comments must be written in English. Preprints reserves the right to remove comments without notice. Readers who post comments are obliged to declare any competing interests, financial or otherwise.

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)

Get PDF Cite Share

Bookmark BibSonomy Mendeley Reddit Delicious Publons

Alerts

Notify me about updates to this article or when a peer-reviewed version is published.