Determination of tin in the presence of lead by stripping voltammetry with collection at a rotating mercury-film disc-ring electrode

Kiekens, Paul; Verbeeck, Ronald; Donche, H.; Temmerman, E.

doi:10.1016/s0003-2670(01)83986-6

Cited by 11 publications

(6 citation statements)

References 11 publications

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“…These values were in the trace analytical concentration range. From the results of Table 1, it can be seen that this work has lower detection limit and wide linear range detection of Sn 2+ than the earlier reports [23,[27][28][29]34], or the detection limit reached the same order of magnitude in the previous reports [26,35].…”

Section: Calibration Curvesupporting

confidence: 54%

Differential pulse anodic stripping voltammetric determination of traces of tin using a glassy carbon electrode modified with bismuth and a film of poly(bromophenol blue)

Yang

Wang

2012

Microchim Acta

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We report on an anodic stripping voltammetric method for the determination of tin using a glassy carbon electrode modified with bismuth and poly(bromophenol blue). After an accumulation time of 60 s at −1.20 V (vs. SCE), the response of the electrode to tin in 1.0 M HCl is linear in the concentration ranges from 20 nM to 1.0 μM, and from 1.0 μM to 20 μM, with a detection limit of 7.0 nM (at an SNR of 3) and with relative standard deviations in the order of 3.0-3.8%. The method was validated by comparing the results with those obtained by AAS and successfully applied to the determination of tin in canned food.

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Section: Calibration Curvesupporting

confidence: 54%

Differential pulse anodic stripping voltammetric determination of traces of tin using a glassy carbon electrode modified with bismuth and a film of poly(bromophenol blue)

Yang

Wang

2012

Microchim Acta

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“…The use of orthogonal functions [15] and H -Point standard addition [16,17] have been appropriate mathematical tools to facilitate resolution while stripping voltammetry with collection at a mercury film disc-ring electrode [18] represents a useful instrumental configuration for achieving separation. Chemical separation of tin and lead prior to electroanalytical determination has been achieved using benzene [4] and although the interference is removed, simultaneous determination of tin and lead is not possible.…”

Section: Introductionmentioning

confidence: 99%

Anodic Stripping Voltammetry of Tin at the Bismuth Film Electrode Using Cetyltrimethylammonium Bromide

Prior

2010

Electroanalysis

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A sensitive anodic stripping voltammetric procedure at the bismuth film electrode (BiFE) is presented for analysis of Sn(IV) in the presence of Pb(II). For the first time Sn(IV) and Pb(II) signals are resolved at the BiFE allowing quantification of Sn(IV) in the absence and presence of Pb(II) and in simultaneous determination of both trace metals. The optimised oxalic acid -CTAB method produced a detection limit for Sn(IV) of 1.9 mg L À1 (S/N ¼ 3) and generated linear calibration data (minimum R 2 of 0.991) between 25 -250 mg L À1 and 5 -50 mg L À1 with deposition times of 45 s and 120 s respectively. A 25 mg L À1 Sn(IV) signal was clearly resolved in the presence of a 20 fold excess of Pb(II) and the successful determination of tin in the presence of lead was performed in a fruit juice matrix.

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“…22 In the presence of lead with a rotating ring disk electrode using stripping voltammetry, the detection limit for tin was found to be 20 nM. 23 Using DPP, 3 × 10 −4 M Sn(II) could be determined in 1 M HCl. 24 It was possible to determine tin with linear sweep polarography in fruit juice.…”

Section: Introductionmentioning

confidence: 99%

Posttonsillectomy pain relief and epithelialization with honey

Letchumanan¹,

Rajagopalan²,

M.Y.Kamaruddin³

2013

Turk J Med Sci

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A new method was established for the simultaneous determination of Sn(II) and Sn(IV) using differential pulse polarography (DPP). Among several electrolytes, 0.1 M NaOH in the presence of 0.1 M KNO 3 was found to be the most suitable one. In this medium, Sn(II) had 2 peaks, at -0.74 and -1.17 V, which were sharp and very sensitive. Sn(IV), on the other hand, had a very small peak at -0.92 V when its concentration was higher than 4.0 × 10 −4 M. Thus, it was decided to determine Sn(IV) after reduction into Sn(II). In the presence of both Sn(II) and Sn(IV), Sn(II) was first determined from the peak at -1.17 V, and then Sn(IV) was determined after its reduction with NaBH 4 into Sn(II). The detection limit was 5.5 × 10 −7 M and 8.2 × 10 −7 M for Sn(II) and Sn(IV), respectively. The interference effect of the most common ions, Fe(III), Cu(II), Pb(II), Cd(II), and Zn(II), was investigated. Only copper and iron had an interfering effect during the speciation procedures, since they oxidized Sn(II), which was formed after reduction of Sn(IV) for its determination. This effect of Cu(II) and Fe(III) ions could be eliminated by the reducing agent NaBH 4 , which was used for the reduction of Sn(IV). Since Pb(II) and Cd(II) peaks overlap with the first peak of Sn(II) at -0.74V, Sn(II) was determined using the second peak, at -1.17 V. In a synthetic sample containing Sn(II), Sn(IV), and all common ions, the total content of tin (2.0 × 10 −5 M) was found to be (2.07 ± 0.38) × 10 −5 M (90% CI, N = 3). This method was applied for the determination of tin in canned tomato sauce.

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Determination of tin in the presence of lead by stripping voltammetry with collection at a rotating mercury-film disc-ring electrode

Cited by 11 publications

References 11 publications

Differential pulse anodic stripping voltammetric determination of traces of tin using a glassy carbon electrode modified with bismuth and a film of poly(bromophenol blue)

Differential pulse anodic stripping voltammetric determination of traces of tin using a glassy carbon electrode modified with bismuth and a film of poly(bromophenol blue)

Anodic Stripping Voltammetry of Tin at the Bismuth Film Electrode Using Cetyltrimethylammonium Bromide

Posttonsillectomy pain relief and epithelialization with honey

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