Determination of oxalate based on its enhancing effect on the oxidation of Mn(II) by periodate

M. E.M. Hassouna; S. A.A. Elsuccary

doi:10.1016/S0039-9140(01)00557-4

Determination of oxalate based on its enhancing effect on the oxidation of Mn(II) by periodate

M. E.M. Hassouna, S. A.A. Elsuccary

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A new kinetic spectrophotometric method for the determination of oxalate has been described, based on its enhancing effect on the oxidation of Mn(II) to MnO^- ₄, which is measured at 525 nm, by potassium periodate. Under the optimum conditions of 20 μg ml^-1 Mn(II) in MnSO₄·H₂O/0.015 mol 1^-1 H₃PO₄/0.013 mol 1^-1 sodium acetate and 3 × 10^-3 mol 1^-1 KIO₄ at 35 °C, calibration graphs in the range of 0.05-1.25 and 0.05-1.75 μg ml^-1 oxalate concentration were obtained with detection limits of 27 and 5 ng ml^-1 by the fixed time and the induction period methods, respectively. No serious interference was identified. The proposed method is simple, inexpensive, sensitive and accurate. The applicability of the method was demonstrated by the determination of the oxalate in spinach and urine samples.

Original language	English
Pages (from-to)	193-202
Number of pages	10
Journal	Talanta
Volume	56
Issue number	1
DOIs	https://doi.org/10.1016/S0039-9140(01)00557-4
Publication status	Published - Jan 4 2002
Externally published	Yes

Keywords

Kinetic method
MnSO
Oxalate
Periodate
Spectrophotometry
Spinach

ASJC Scopus subject areas

Analytical Chemistry

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10.1016/S0039-9140(01)00557-4

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title = "Determination of oxalate based on its enhancing effect on the oxidation of Mn(II) by periodate",

abstract = "A new kinetic spectrophotometric method for the determination of oxalate has been described, based on its enhancing effect on the oxidation of Mn(II) to MnO- 4, which is measured at 525 nm, by potassium periodate. Under the optimum conditions of 20 μg ml-1 Mn(II) in MnSO4·H2O/0.015 mol 1-1 H3PO4/0.013 mol 1-1 sodium acetate and 3 × 10-3 mol 1-1 KIO4 at 35 °C, calibration graphs in the range of 0.05-1.25 and 0.05-1.75 μg ml-1 oxalate concentration were obtained with detection limits of 27 and 5 ng ml-1 by the fixed time and the induction period methods, respectively. No serious interference was identified. The proposed method is simple, inexpensive, sensitive and accurate. The applicability of the method was demonstrated by the determination of the oxalate in spinach and urine samples.",

keywords = "Kinetic method, MnSO, Oxalate, Periodate, Spectrophotometry, Spinach",

author = "Hassouna, {M. E.M.} and Elsuccary, {S. A.A.}",

note = "Funding Information: This study was supported by the West Bengal State Department of Health and Family Welfare, Government of India (grant no. HF/O/MERT/1464/HSL [MISC] – 35/2008). AMD, WWF, and RKR conceived and designed the study. AMD performed the analysis and prepared the first draft. WWF, AB, AC, and RKR reviewed the results and contributed to finalizing the manuscript. All authors approved the study. The authors have no conflicts of interests to declare. ",

year = "2002",

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doi = "10.1016/S0039-9140(01)00557-4",

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volume = "56",

pages = "193--202",

journal = "Talanta",

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T1 - Determination of oxalate based on its enhancing effect on the oxidation of Mn(II) by periodate

AU - Hassouna, M. E.M.

AU - Elsuccary, S. A.A.

N1 - Funding Information: This study was supported by the West Bengal State Department of Health and Family Welfare, Government of India (grant no. HF/O/MERT/1464/HSL [MISC] – 35/2008). AMD, WWF, and RKR conceived and designed the study. AMD performed the analysis and prepared the first draft. WWF, AB, AC, and RKR reviewed the results and contributed to finalizing the manuscript. All authors approved the study. The authors have no conflicts of interests to declare.

PY - 2002/1/4

Y1 - 2002/1/4

N2 - A new kinetic spectrophotometric method for the determination of oxalate has been described, based on its enhancing effect on the oxidation of Mn(II) to MnO- 4, which is measured at 525 nm, by potassium periodate. Under the optimum conditions of 20 μg ml-1 Mn(II) in MnSO4·H2O/0.015 mol 1-1 H3PO4/0.013 mol 1-1 sodium acetate and 3 × 10-3 mol 1-1 KIO4 at 35 °C, calibration graphs in the range of 0.05-1.25 and 0.05-1.75 μg ml-1 oxalate concentration were obtained with detection limits of 27 and 5 ng ml-1 by the fixed time and the induction period methods, respectively. No serious interference was identified. The proposed method is simple, inexpensive, sensitive and accurate. The applicability of the method was demonstrated by the determination of the oxalate in spinach and urine samples.

AB - A new kinetic spectrophotometric method for the determination of oxalate has been described, based on its enhancing effect on the oxidation of Mn(II) to MnO- 4, which is measured at 525 nm, by potassium periodate. Under the optimum conditions of 20 μg ml-1 Mn(II) in MnSO4·H2O/0.015 mol 1-1 H3PO4/0.013 mol 1-1 sodium acetate and 3 × 10-3 mol 1-1 KIO4 at 35 °C, calibration graphs in the range of 0.05-1.25 and 0.05-1.75 μg ml-1 oxalate concentration were obtained with detection limits of 27 and 5 ng ml-1 by the fixed time and the induction period methods, respectively. No serious interference was identified. The proposed method is simple, inexpensive, sensitive and accurate. The applicability of the method was demonstrated by the determination of the oxalate in spinach and urine samples.

KW - Kinetic method

KW - MnSO

KW - Oxalate

KW - Periodate

KW - Spectrophotometry

KW - Spinach

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JO - Talanta

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Determination of oxalate based on its enhancing effect on the oxidation of Mn(II) by periodate

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