Determination of traces of thallium using the transient chaotic regime in the Belousov–Zhabotinskii oscillating chemical reaction

Strizhak, P. E.; Didenko, O. Z.; Ivashchenko, T. S.

doi:10.1016/s0003-2670(00)01253-8

Cited by 37 publications

(22 citation statements)

References 22 publications

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“…[9][10][11][12] Tyson et al determined Hg(II) and Tl(I) in a double-line flow-injection manifold including a 30 µL flow cell and UV-VIS spectrophotometer. 13 Several other researchers have improved on the idea by adding different catalysts or inhibitors to the reaction for the determination of Fe(CN)6 [3][4][5][6][7][8][9][10][11][12][13][14]15 and Mn(II). 16 Recently, oscillating systems involving no halogen compound (particulary the CuSO4-catalyzed reaction of hydrogen peroxide with thiocyanate ion) have aroused increasing attention.…”

mentioning

confidence: 99%

Kinetic Determination of Silver Ion by Its Perturbation on Belousov-Zhabotinskii Oscillating Chemical Reaction Using Potentiometric Method

2004

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confidence: 99%

Kinetic Determination of Silver Ion by Its Perturbation on Belousov-Zhabotinskii Oscillating Chemical Reaction Using Potentiometric Method

2004

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“…Several subjects were determined by this technique, such as riboflavin [10], gallic acid, resorcinol [11], ascorbic acid [12], glutamic acid [13], glutathione [14], paracetamol [15], 1-naphthylamine [16], thallium [17], morphine [18], vanillin and alpha-naphthol [19].…”

Section: Introductionmentioning

confidence: 99%

Determination of Alizarin Red S using a novel B-Z oscillation system catalyzed by a tetraazamacrocyclic complex

Chen

Zhang

et al. 2009

Open Chemistry

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“…The early FKN mechanism 6 and a recently theoretical analysis by Taylor 7 impel the study to the deep progress. Another is the Cu(II)-catalyzed reaction between hydrogen peroxide and sodium thiocyanate in the alkaline medium, which has developed by Orban et al [8][9] A lot of papers concerning the determination of organic [10][11][12][13][14] and inorganic substances [15][16][17][18][19][20][21][22] have also been published.…”

Section: Introductionmentioning

confidence: 99%

Determination of L-aspartic acid by using the Cu(II)-catalyzed oscillating reaction

Gao¹,

Lv²,

Sun³

et al. 2009

J. Braz. Chem. Soc.

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Foi proposto um procedimento conveniente por meio de um sistema químico oscilante como uma ferramenta analítica para a determinação de ácido L-aspártico (L-Asp). O sistema envolve a reação entre peróxido de hidrogênio e tiocianato de sódio, catalizada por íons Cu(II) em meio alcalino. O método baseia-se na relação linear entre as mudanças no período de oscilação e o logarítmo da concentração de ácido L-aspártico. Condições otimizadas foram posteriormente validadas para garantir a confiabilidade do método. Sob condições otimizadas, o gráfico de calibração é linear e proporcional à concentração do ácido L-aspártico no intervalo de 1,17 × 10 -5 mol L -1 a 7,10 × 10 -8 mol L -1 com um coeficiente de regressão linear de 0,9990 e RSD de 2,75%. O limite de determinação (LOD) foi de 5,58 x 10 -8 mol L -1 . O método proposto foi empregado na determinação do ácido L-aspártico em amostras de medicamentos. Além disto, a técnica HPLC foi empregada para confirmar os resultados.A convenient procedure by means of oscillating chemical system as an analytical tool to determine the L-aspartic acid (L-Asp) is proposed. The system involves the Cu(II)-catalyzed reaction between hydrogen peroxide and sodium thiocyanate in an alkaline medium. The method relies on the linear relationship between the changes in the oscillation period and the logarithm of concentration of L-aspartic acid. Optimized conditions were further validated to ensure the reliability of the method. Under optimum conditions, the calibration plot is linearly proportional to the concentration of L-aspartic acid over the range from 1.17 × 10 -5 mol L -1 to 7.10 × 10 -8 mol L -1 with a corresponding regression coefficient of 0.9990 (RSD 2.75%). A lower limit of determination (LOD) was 5.58 × 10 -8 mol L -1 . The proposed method has been used to determine L-aspartic acid in drug sample. Additionally, the HPLC technique was also used to confirm the determination results.

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Determination of traces of thallium using the transient chaotic regime in the Belousov–Zhabotinskii oscillating chemical reaction

Cited by 37 publications

References 22 publications

Kinetic Determination of Silver Ion by Its Perturbation on Belousov-Zhabotinskii Oscillating Chemical Reaction Using Potentiometric Method

Kinetic Determination of Silver Ion by Its Perturbation on Belousov-Zhabotinskii Oscillating Chemical Reaction Using Potentiometric Method

Determination of Alizarin Red S using a novel B-Z oscillation system catalyzed by a tetraazamacrocyclic complex

Determination of L-aspartic acid by using the Cu(II)-catalyzed oscillating reaction

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