Green Downscaling of Solvent Extractive Determination Employing Coconut Oil as Natural Solvent with Smartphone Colorimetric Detection: Demonstrating the Concept via Cu(II) Assay Using 1,5-Diphenylcarbazide.

Kullapon Kesonkan, Chonnipa Yeerum, Kanokwan Kiwfo, Kate Grudpan, Monnapat Vongboot

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Article in Molecules (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Kullapon KesonkanDepartment of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.

Chonnipa YeerumDepartment of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.

Kanokwan KiwfoCenter of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand.

Kate GrudpanCenter of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand.ORCID 0000-0001-5871-8291

Monnapat VongbootDepartment of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.

Funding

Science Achievement Scholarship of Thailand (SAST) 102/2560Thailand Research Fund DPG6080002

6 · The paper itself

Abstract

Coconut oil as a natural solvent is proposed for green downscaling solvent extractive determination. Determination of Cu(II) using 1,5-Diphenylcarbazide (DPC) was selected as a model for the investigation. Cu(II)-DPC complexes in aqueous solution were transferred into coconut oil phase. The change of the color due to Cu(II)-DPC complexes in coconut oil was followed by using a smartphone and image processing. A single standard concept was used for a series of Cu(II) standard solutions. A downscaling procedure using a 2 mL vial provided a calibration: color intensity = -142 [Cu(II)] + 222, (R

Indexed as

ColorimetryWaterCoconut OilCopperDiphenylcarbazideSolventsCoconut OilCopperDiphenylcarbazideSolventsWatercoconut oilcolorimetric solvent extraction determinationcopper (II)diphenylcarbazidediphenylcarbazonedownscaling extractiongreen chemical analysisnatural solvent

Identifiers

PMID36500721

DOI10.3390/molecules27238622

PMCPMC9740733

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