Butterfly pea (Clitoria ternatea) extract as a green analytical tool for selective colorimetric detection of bisulphate (HSO 4 - ) ion in aqueous medium.
- Resource Type
- Academic Journal
- Authors
- Rana P; School of Chemistry, Sambalpur University, Jyoti Vihar, Burla 768 019, Odisha, India.; Murmu N; School of Chemistry, Sambalpur University, Jyoti Vihar, Burla 768 019, Odisha, India.; Padhan SK; School of Chemistry, Sambalpur University, Jyoti Vihar, Burla 768 019, Odisha, India.; Sahu SN; School of Chemistry, Sambalpur University, Jyoti Vihar, Burla 768 019, Odisha, India. Electronic address: snsahu@suniv.ac.in.
- Source
- Publisher: Elsevier Country of Publication: England NLM ID: 9602533 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-3557 (Electronic) Linking ISSN: 13861425 NLM ISO Abbreviation: Spectrochim Acta A Mol Biomol Spectrosc Subsets: MEDLINE
- Subject
- Language
- English
The blue color of butterfly pea (Clitoria ternatea) was extracted by Milli-Q water and evaluated for selective detection of bisulphate (HSO 4 - ) ions. The stability of the Clitoria ternatea extract was established by UV-visible and fluorescence techniques. The blue water extract from Clitoria ternatea selectively recognizes HSO 4 - ions over various anions via a distinct visual color change from blue to purple with a significant hypsochromic shift of 68 nm in the UV-visible absorption spectra. Thus Clitoria ternatea extract provides a selective real time colorimetric monitoring of HSO 4 - ions which would pave the way for the development of low cost green analytical tool. This type of detection technique enhances the environmental and economic benefits and can emerge as an alternative form of synthetic chelating sensors.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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