TY  - JOUR
AU  - Rancic, SM
AU  - Nikolić-Mandić, Snežana D.
AU  - Mandić, Ljuba M.
PY  - 2005
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/726
AB  - The kinetic spectrophotometric method for Au(III) determination was developed and validated. It was based on the catalytic effect of gold on the oxidation of methylene blue B (3,7di-(dimethyl amino)-10-dehydro-phenotiazin chloride) by ammonium peroxo-disulfate in citric buffer solution. There was the linearity of the calibration curve in the concentration range from 0.09 to 2.90 mu g ml(-1) Au(III). The relative standard deviation was 2.50% and correlation coefficient of 0.9999. The limit of detection was determined as signal to noise ratio (3: 1) and it was 5.5 ng ml(-1). The limit of quantification, based on signal to noise ratio 10: 1 was 19.25 ng ml(-1). The selectivity was tested on the basis of influence of known amounts of different ions in the reaction mixture, upon the reaction rate. Kinetic and thermodynamic parameters were reported for both catalytic and non-catalytic reactions. The method was verified by Au(III) determination in anti-rheumatic drug "Thuredon" and in human urine samples, using ICP-AES as the comparative method. As the method is accurate, reliable, quick and simple it could be useful for clinical and toxicological practice. (c) 2004 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Analytica Chimica Acta
T1  - Kinetic spectrophotometric method for gold(III) determination
VL  - 547
IS  - 1
SP  - 144
EP  - 149
DO  - 10.1016/j.aca.2004.11.078
ER  - 

@article{
author = "Rancic, SM and Nikolić-Mandić, Snežana D. and Mandić, Ljuba M.",
year = "2005",
abstract = "The kinetic spectrophotometric method for Au(III) determination was developed and validated. It was based on the catalytic effect of gold on the oxidation of methylene blue B (3,7di-(dimethyl amino)-10-dehydro-phenotiazin chloride) by ammonium peroxo-disulfate in citric buffer solution. There was the linearity of the calibration curve in the concentration range from 0.09 to 2.90 mu g ml(-1) Au(III). The relative standard deviation was 2.50% and correlation coefficient of 0.9999. The limit of detection was determined as signal to noise ratio (3: 1) and it was 5.5 ng ml(-1). The limit of quantification, based on signal to noise ratio 10: 1 was 19.25 ng ml(-1). The selectivity was tested on the basis of influence of known amounts of different ions in the reaction mixture, upon the reaction rate. Kinetic and thermodynamic parameters were reported for both catalytic and non-catalytic reactions. The method was verified by Au(III) determination in anti-rheumatic drug "Thuredon" and in human urine samples, using ICP-AES as the comparative method. As the method is accurate, reliable, quick and simple it could be useful for clinical and toxicological practice. (c) 2004 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Analytica Chimica Acta",
title = "Kinetic spectrophotometric method for gold(III) determination",
volume = "547",
number = "1",
pages = "144-149",
doi = "10.1016/j.aca.2004.11.078"
}

Rancic, S., Nikolić-Mandić, S. D.,& Mandić, L. M.. (2005). Kinetic spectrophotometric method for gold(III) determination. in Analytica Chimica Acta
Elsevier Science Bv, Amsterdam., 547(1), 144-149.
https://doi.org/10.1016/j.aca.2004.11.078

Rancic S, Nikolić-Mandić SD, Mandić LM. Kinetic spectrophotometric method for gold(III) determination. in Analytica Chimica Acta. 2005;547(1):144-149.
doi:10.1016/j.aca.2004.11.078 .

Rancic, SM, Nikolić-Mandić, Snežana D., Mandić, Ljuba M., "Kinetic spectrophotometric method for gold(III) determination" in Analytica Chimica Acta, 547, no. 1 (2005):144-149,
https://doi.org/10.1016/j.aca.2004.11.078 . .