Determination of Trace Potassium in Concentration Salt Solution by Anti-Fluorescence Quenching Method on Rhodamine B-Sodium Tetraphenylborate System

Xiangrong Lei; Xiaoling Wei; Qi Gong; Qiuyang Wei; Lisheng Wang

doi:10.14233/ajchem.2013.12902

Issue

Vol. 25 No. 3 (2013): Vol 25 Issue 3

Issue Published : October 8, 2012

This work is licensed under a Creative Commons Attribution 4.0 International License.

Determination of Trace Potassium in Concentration Salt Solution by Anti-Fluorescence Quenching Method on Rhodamine B-Sodium Tetraphenylborate System

https://doi.org/10.14233/ajchem.2013.12902

Xiangrong Lei

College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China

Xiaoling Wei

College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China

Qi Gong

College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China

Qiuyang Wei

College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China

Lisheng Wang

College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China

Corresponding Author(s) : Xiaoling Wei

wxl1651@163.com

Asian Journal of Chemistry, Vol. 25 No. 3 (2013): Vol 25 Issue 3
Article Published : October 9, 2012

Abstract

It is found that sodium tetraphenylborate had the ability to quench the fluorescence of Rhodamine B, could make the intensity of fluorescence weak or even disappear. But K⁺, which can reacted with the sodium tetraphenylborate to form precipitation had the anti-quenching effect on Rhodamine B-sodium tetraphenylborate system, enhanced the intensity of fluorescence. The fluorescent signal enhancement degree was proportional to the concentration of K⁺. Using antifluorescence quenching method, with 375 nm for excitation wavelength and 640 nm for emission wavelength, the fluorescence intensity F₁ and F₀ of solution and blank solution were measured. The different value DF = F₁-F₀ was proportional to the concentration of K⁺. Based on these, a new, simple and sensitive antifluorescence quenching method for determination of K⁺ was established. The linear relationship between the different value DF of the intensity of fluorescence and the concentration of K⁺ is in the range of 2.14 mg L^-1-43.0 mg L^-1. The detection limit is 0.642 mg L^-1 and the relative standard deviation is 1.32 %. This method can be used for determination of trace potassium in concentration salt solution and has been successfully applied to determination of K⁺ in common salt and compound sodium chloride injection with satisfactory results.

Keywords

Potassium Rhodamine B-sodium tetraphenylborate system Anti-fluorescence quenching Concentration salt solution

Lei, X., Wei, X., Gong, Q., Wei, Q., & Wang, L. (2012). Determination of Trace Potassium in Concentration Salt Solution by Anti-Fluorescence Quenching Method on Rhodamine B-Sodium Tetraphenylborate System. Asian Journal of Chemistry, 25(3), 1285–1289. https://doi.org/10.14233/ajchem.2013.12902

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X. Lai, Chin. J. Anal. Lab., 22, 89 (2003).

W.Q. Huang, W. Liu and S.N. Zhou, Phys. Testing. Chem. Anal. Part B: Chem. Anal., 41, 855 (2005).

H.P. Ding, L.P. Long and P. Huang, China Pharm., 16, 1102 (2005).

H. Pan, Strait Pharm. J., 15, 48 (2003).

S.Y. Ma, Phys. Testing. Chem. Anal. Part B: Chem. Anal., 42, 580 (2006).

Y.X. Xing, G.F. Shen and F.H. Chen, Chin. J. Anal. Lab., 28, 260 (2009).

J.L.F.C. Lima, A.O.S.S. Rangel, M.R.S. Souto and E.A.G. Zagatto, Anal. Chim. Acta, 356, 259 (1997).

H. Lin, Q.B. Huang and Y. Yang, Chin. J. Spectrosc. Lab., 21, 514 (2004).

S. Vicente, E.P. Borges, B.F. Reis and E.A.G. Zagatto, Anal. Chim. Acta, 438, 3 (2001).

A. de Jesus, M.M. Silva and M.G.R. Vale, Talanta 74, 1378 (2008).

C.V.S. Ieggli, D. Bohrer, P.C. do Nasimento and L.M. de Carvalho, Food Chem., 124, 1189 (2011).

L. Noel, M. Carl, C. Vastel and T. Guerin, Int. Dairy J., 18, 899 (2008).

C.V.S. Ieggli, D. Bohrer, P.C. do Nasimento, L.M. de Carvalho and S.C. Garcia, Talanta, 80, 1282 (2010).

F.H. Lyra, M.T.W.D. Carneiro, G.P. Brandão, H.M. Pessoa and E.V. de Castro, Microchem. J., 96, 180 (2010).

C.A.B. Garcia, L. Rover Jr. and G. de Oliveira Neto, J. Pharm. Biomed. Anal., 31, 11 (2003).

M. de Souza Castilho and N.R. Stradiotto, Talanta, 74, 1630 (2008).

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Vandana and R. Mittal, Appl. Rad. Isot., 54, 377 (2001).

QB2019-2005, Low sodium salt

Z.S. Liu and X.P. Jing, Chem. Online, 10, 771 (2005).

B.J. Huang, J.J. Li and L.B. Qu, J. Tianjin Normal Univ. (Nat. Sci. Ed.), 25, 8 (2005).

Issue

Vol. 25 No. 3 (2013): Vol 25 Issue 3

Determination of Trace Potassium in Concentration Salt Solution by Anti-Fluorescence Quenching Method on Rhodamine B-Sodium Tetraphenylborate System

Corresponding Author(s) : Xiaoling Wei

Abstract

Keywords

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