Simultaneous Determination of Tin, Nickel, Lead, Cadmium and Mercury in Cigarette Material by Solid Phase Extraction and HPLC

An adsorptive differential pulse stripping method for the simultaneous determination of lead and tin is proposed. The procedure involves an adsorptive accumulation of lead and tin on a hanging mercury drop electrode (HMDE), followed by oxidation of adsorbed lead and tin by voltammetric scan using differential pulse modulation. The optimum experimental conditions are: 0.2 mol L−1 HNO3, accumulation potential of −900 mV versus Ag/AgCl, accumulation time of 200 s, scan rate of 20 mV s−1 and pulse height of 80 mV. Lead and tin peak currents were observed in the same potential region at about −400 mV. The simultaneous determination of lead and tin by using voltammetry is a difficult problem in analytical chemistry, due to voltammogram interferences. The resolution of a mixture of lead and tin by the application of orthogonal signal correction‐partial least squares (OSC‐PLS) was performed. The linear dynamic ranges were 0.003‐0.35 and 0.008‐0.50 μg mL−1 and detection limits were land 3 ng mL−1 for lead and tin, respectively. The RMSEP for lead and tin with OSC and without OSC were 2.8737, 6.0557 and 8.0941, 9.5151, respectively. The capability of the method for the analysis of real samples was evaluated by the determination of lead and tin in water samples with satisfactory results.

show abstract

Simultaneous Voltammetric Determination of Lead and Tin by Adsorptive Differential Pulse Stripping Method and Orthogonal Signal Correction‐Partial Least Squares in Water Samples

Ниази

Amjadi

Nori‐Shargh

et al. 2008

J Chinese Chemical Soc

View full text Add to dashboard Cite

show abstract

Application of Net Analyte Signal Standard Addition Method (NASSAM) for Simultaneous Determination of Lead and Tin by Differential Pulse Polarography

Asadpour‐Zeynali

Majidi

Vallipour

et al. 2011

J Chinese Chemical Soc

View full text Add to dashboard Cite

Differential pulse polarography was used for simultaneous determination of Sn 2+ and Pb 2+ . But there is a problem for simultaneous determination and it is high overlapped DPPs of mentioned cations that their determination is impossible in the presence of each other, so multivariate calibration methods as chemomatrics methods were used for this determination. There are some disadvantageous for multivariate calibration methods that can be solved by a new and simple method called net analyte signal standard addition method. This method has some advantages, such as: the use of a full voltammogram, realization in a single step, therefore it does not require calibration and prediction steps and only a few measurements are required for the determination.Keywords: Net analyte signal standard addition method; Simultaneous determination; Differential pulse polarography; Lead; Tin. INTRODUCTIONThe impact of the effects of trace chemical species in the environmental and industrial samples on man's health has fostered development of analytical techniques and instrumentation capable of addressing these issues. 1,2 Different analytical methods were used for simultaneous determination of trace metals like atomic absorption spectrometry, 3,4 high performance liquid chromatography, 5 inductively coupled plasma-mass spectrometry 6 and neutron activation analysis 7 and electrochemical methods. 1,2 Between these methods, one of the reliable, accurate methods that gives qualitative and quantitative information of electroactive species in a sample as a well-known analytical tools with high sensivity and selectivity, coupled with convenience and economy are required. Differential pulse polarography (DPP) has been recognized as a powerful tool for multiel-ement trace metal detection. 2,8,9 In spite of it's high sensivity, this method drawback is the low selectivity. This problem is considerable when our purpose is simultaneous determination of metals and their oxidation and/or reduction potentials are close to each other so there are sever overlapped peaks. In these cases chemomatrics methods are used for analysis of voltamograms and polarograms.

show abstract

Inexpensive and versatile method for trace Sn(II) and Sn(IV) ions in food samples by CPE/FAAS

Ulusoy

Akçay

et al. 2012

Food Chemistry

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Simultaneous Determination of Tin, Nickel, Lead, Cadmium and Mercury in Cigarette Material by Solid Phase Extraction and HPLC

Cited by 10 publications

References 7 publications

Simultaneous Voltammetric Determination of Lead and Tin by Adsorptive Differential Pulse Stripping Method and Orthogonal Signal Correction‐Partial Least Squares in Water Samples

Simultaneous Voltammetric Determination of Lead and Tin by Adsorptive Differential Pulse Stripping Method and Orthogonal Signal Correction‐Partial Least Squares in Water Samples

Application of Net Analyte Signal Standard Addition Method (NASSAM) for Simultaneous Determination of Lead and Tin by Differential Pulse Polarography

Inexpensive and versatile method for trace Sn(II) and Sn(IV) ions in food samples by CPE/FAAS

Contact Info

Product

Resources

About