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- Title
Optimization of Voltammetric Determination of Dysprosium (III) Using Plackett-Burman and RSM-CCD Experimental Designs.
- Authors
Wyantuti, Santhy; Setyorini, Zulida; Ishmayana, Safri; Hartati, Yeni Wahyuni; Lutfi Firdaus, M.
- Abstract
This study was aimed to develop an optimized Dy determination method using differential pulse voltammetry (DPV). The Plackett-Burman (PB) experimental design was used to select significant factors that affect the electrical current response, which were further optimized using the response surface methodcentral composite design (RSM-CCD). The type of electrolyte solution and amplitude modulation were found as two most significant factors, among the nine factors tested, which enhance the current response based on PB design. Further optimization using RSM-CCD shows that the optimum values for the two factors were 0.1046 M and 0.1082 V respectively. When the optimum conditions were applied for Dy determination good recovery and precision were achieved with values of 91.58%, and 99.80%, respectively. The detection limit and quantification limit of the method were 1.4322 mg/L and of 4.7741 mg/L, respectively.
- Subjects
DYSPROSIUM; EXPERIMENTAL design; AMPLITUDE modulation; ELECTROLYTE solutions; DETECTION limit
- Publication
Baghdad Science Journal, 2020, Vol 17, Issue 4, p1198
- ISSN
2078-8665
- Publication type
Article
- DOI
10.21123/bsj.2020.17.4.1198