Gravimetric Determination of Saccharin in Some Sweetners Using Mercurous Nitrate as Reagent

Fatibello‐Filho, Orlando; Teixeira, Marcos Fernando de Souza; Guaritá-Santos, Antônio José Moraes

doi:10.5935/0103-5053.19930015

Cited by 4 publications

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“…Due to the extended use of sweeteners, specially saccharine, analytical techniques for its quantification have been developed, such as HPLC (2)(3)(4), visible spectroscopy (5-8) fluorimetry (9), polarography (10,11), gravimetry (12) and flow injection analysis (13,14). In spite of the accurate and exact results obtained by using these techniques, researchers must face problems involving instrumental complexity, high analysis cost and long time to perform the analysis and achieve results, so food industry has invested a lot of resources to develop alternative quantification techniques.…”

Section: Introductionmentioning

confidence: 99%

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinate Anion

et al. 2008

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A selective electrode for the quantification of saccharinate ion based on a polypyrrole-doped membrane is developed. The membrane is electrochemically prepared using stainless steel as working electrode. Potentiostatic variables for membrane growing such as pyrrole concentration, saccharinate concentration, applied potential and deposition time are optimized in order to maximize sensibility. The optimized membrane was analytically characterized by means of calibration curves, the detection limit was found to be 3.6 x 10 -4 M and the quantification limits were found between 5 x 10 -4 M and over 1 M. Selectivity of the membrane is evaluated for different inorganic anions, resulting in the following selectivity coefficients: pKSaccharinate,Citrate= 3.4, pKSaccharinate,H 2 PO 4 = 3.4, pKSaccharinate,HPO 4 -2 = 3.4 y pKSaccharinate,SO 4 -2 = 2.5. This results demonstrate an adecuate performance of the proposed selective polypyrrole membrane so it can be considered as an alternative to traditional analytical methods for the direct quantification of saccharine in diverse samples.

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Section: Introductionmentioning

confidence: 99%

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinate Anion

et al. 2008

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“…Only two flow-injection (FI) procedures have been proposed in the literature [3,4]. Fatibello-Filho et al [3] developed a simple and inexpensive FI method for determining the presence of saccharin based on the low solubility of mercurous saccharinate.…”

Section: Introductionmentioning

confidence: 99%

“…Fatibello-Filho et al [3] developed a simple and inexpensive FI method for determining the presence of saccharin based on the low solubility of mercurous saccharinate. A nitrate mercurous solution was used as a reagent, and the remaining cation was monitored…”

Section: Introductionmentioning

confidence: 99%

Flow injection potentiometric determination of saccharin in dietary products using a tubular ion-selective electrode

Fatibello‐Filho¹,

Aniceto²

1999

Lab. Robotics Autom.

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Potentiometric quantification of saccharin by using a selective membrane formed by pyrrole electropolymerization

et al. 2010

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Gravimetric Determination of Saccharin in Some Sweetners Using Mercurous Nitrate as Reagent

Cited by 4 publications

References 0 publications

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinate Anion

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinate Anion

Flow injection potentiometric determination of saccharin in dietary products using a tubular ion-selective electrode

Potentiometric quantification of saccharin by using a selective membrane formed by pyrrole electropolymerization

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