Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)

In this study, the complex of difluoroboron, curcumin (BF2-Cur), has been synthesized and characterized via the combination of Boron trifluoride-diethyl etherate ((C2H5)2OBF3) and curcumin. However, the new dissociation constants, pKa1 and pKa2 of the BF2-Cur complex, have been indicted by the value...

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Autores principales:	Nguyen Quoc Thang, Tran Nguyen Minh An, Le Thi Thanh Tran, Do Tam Nhan, Mai Ngoc Tan, Le Van Tan
Formato:	article
Lenguaje:	EN
Publicado:	Department of Chemistry, Universitas Gadjah Mada 2021
Materias:	bf2-cur total arsenic uv-vis spectrophotometry the conformation of complex uff Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/4d470902d4b44abea1edb5b5b5d69de5
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spelling	oai:doaj.org-article:4d470902d4b44abea1edb5b5b5d69de52021-12-02T16:56:27ZDifluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)1411-94202460-157810.22146/ijc.66990https://doaj.org/article/4d470902d4b44abea1edb5b5b5d69de52021-09-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/66990https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578In this study, the complex of difluoroboron, curcumin (BF2-Cur), has been synthesized and characterized via the combination of Boron trifluoride-diethyl etherate ((C2H5)2OBF3) and curcumin. However, the new dissociation constants, pKa1 and pKa2 of the BF2-Cur complex, have been indicted by the values of 8.44 ± 0.16 and 9.76 ± 0.13, respectively. On the other hand, the reagent was also used to determine As(III) in aqueous solutions by UV–Vis spectrophotometry. As a result, the method was validated for accuracy, precision, linearity, and sensitivity, and the linear range was from 1.0 to 25.0 µmol/L, with the linear regression, A = 0.0027 C + 0.0106, correlation coefficient R2 = 0.9969. Besides, the limit of detection (LOD) and limit of quantification (LOQ) were determined as 0.83 and 2.10 µmol/L, respectively. Thus, the developed method is successfully used for quantitative analysis of total arsenic in wastewater by reducing As(V) to As(III), then determining As(III) with high accuracy results.Nguyen Quoc ThangTran Nguyen Minh AnLe Thi Thanh TranDo Tam NhanMai Ngoc TanLe Van TanDepartment of Chemistry, Universitas Gadjah Madaarticlebf2-curtotal arsenicuv-vis spectrophotometrythe conformation of complexuffChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 21, Iss 5, Pp 1271-1280 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bf2-cur total arsenic uv-vis spectrophotometry the conformation of complex uff Chemistry QD1-999
spellingShingle	bf2-cur total arsenic uv-vis spectrophotometry the conformation of complex uff Chemistry QD1-999 Nguyen Quoc Thang Tran Nguyen Minh An Le Thi Thanh Tran Do Tam Nhan Mai Ngoc Tan Le Van Tan Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)
description	In this study, the complex of difluoroboron, curcumin (BF2-Cur), has been synthesized and characterized via the combination of Boron trifluoride-diethyl etherate ((C2H5)2OBF3) and curcumin. However, the new dissociation constants, pKa1 and pKa2 of the BF2-Cur complex, have been indicted by the values of 8.44 ± 0.16 and 9.76 ± 0.13, respectively. On the other hand, the reagent was also used to determine As(III) in aqueous solutions by UV–Vis spectrophotometry. As a result, the method was validated for accuracy, precision, linearity, and sensitivity, and the linear range was from 1.0 to 25.0 µmol/L, with the linear regression, A = 0.0027 C + 0.0106, correlation coefficient R2 = 0.9969. Besides, the limit of detection (LOD) and limit of quantification (LOQ) were determined as 0.83 and 2.10 µmol/L, respectively. Thus, the developed method is successfully used for quantitative analysis of total arsenic in wastewater by reducing As(V) to As(III), then determining As(III) with high accuracy results.
format	article
author	Nguyen Quoc Thang Tran Nguyen Minh An Le Thi Thanh Tran Do Tam Nhan Mai Ngoc Tan Le Van Tan
author_facet	Nguyen Quoc Thang Tran Nguyen Minh An Le Thi Thanh Tran Do Tam Nhan Mai Ngoc Tan Le Van Tan
author_sort	Nguyen Quoc Thang
title	Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)
title_short	Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)
title_full	Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)
title_fullStr	Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)
title_full_unstemmed	Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)
title_sort	difluoroboron curcumin complex: a study on determination of acidity constants and quantitative analysis of arsenic(iii)
publisher	Department of Chemistry, Universitas Gadjah Mada
publishDate	2021
url	https://doaj.org/article/4d470902d4b44abea1edb5b5b5d69de5
work_keys_str_mv	AT nguyenquocthang difluoroboroncurcumincomplexastudyondeterminationofacidityconstantsandquantitativeanalysisofarseniciii AT trannguyenminhan difluoroboroncurcumincomplexastudyondeterminationofacidityconstantsandquantitativeanalysisofarseniciii AT lethithanhtran difluoroboroncurcumincomplexastudyondeterminationofacidityconstantsandquantitativeanalysisofarseniciii AT dotamnhan difluoroboroncurcumincomplexastudyondeterminationofacidityconstantsandquantitativeanalysisofarseniciii AT maingoctan difluoroboroncurcumincomplexastudyondeterminationofacidityconstantsandquantitativeanalysisofarseniciii AT levantan difluoroboroncurcumincomplexastudyondeterminationofacidityconstantsandquantitativeanalysisofarseniciii
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Difluoroboron Curcumin Complex: A Study on Determination of Acidity Constants and Quantitative Analysis of Arsenic(III)

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