Articles related to COVID-19 will be published in special issue.

Articles Statistics
48.6% 14.5%
Manuscript Statistics
12.5% 21.9% 46.9%


Author(s): P.A.D. Nisansala, M.N. Kaumal

This paper reports the development of a simple, sensitive and low-cost microfluidic paper-based electrochemical sensing device developed for the detection of vitamin B12 in foods and pharmaceutical products. This hydrophobic barrier device was constructed on paper using commercially available varnish paint. The working electrode was constructed using a mixture of varnish and graphite powder. Silver conductive ink and a 6B pencil were used to fabricate the reference and counter electrodes, respectively. Cyclic voltammograms of standard vitamin B12 and real samples were collected from -2 V to +2 V at a scan rate of 200 mV/s. Currents of cyclic voltammograms at +2 V for the concentrations of vitamin B12 from 5 – 25 mM produced a linear relationship (r2 of 0.98). The calculated limit of detection of this paper-based device is 3.7 mM.

Indexed in

Google Scholar

Chemical Abstract Services (CAS)

Science Central

Index Copernicus

Pharmaceutical Science Open Access Resources (PSOAR)


Directory of Research Journals Indexing

Journal Seeker

Directory of Science


Jour Informatics and China Knowledge Research Integrated (CNKI)


Publication Statistics
Vol... Vol... Vol... Vol... Vol... Vol... 0 5 10 15 20 Issues No.of Articles
World wide visitors
pharmaceutical analysis, international journal, chemical and pharmaceutical, journal of chemical, online open access journals, open access journals
Google Scholar citation report
Citations : 440

International Journal of Chemical and Pharmaceutical Analysis received 440 citations as per google scholar report

International Journal of Chemical and Pharmaceutical Analysis peer review process verified at publons

Indexed In