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  • Ký hiệu PL/XG: 621.319
    Nhan đề: Simultaneous effect of pH, deposition time, deposition potential, and step potential on the stripping peak current of lead and cadmium by response surface methodology /
DDC 621.319
Nhan đề Simultaneous effect of pH, deposition time, deposition potential, and step potential on the stripping peak current of lead and cadmium by response surface methodology / Thi Lieu Nguyen, Van Hoang Cao, Thi Dieu Cam Nguyen, Thi Thanh Binh Nguyen, Quoc Trung Pham, Truong Giang Le
Thông tin xuất bản Ho Chi Minh city : Nguyen Tat Thanh University, 2019
Mô tả vật lý 7 p.
Tóm tắt In this paper, a simple voltammetric method has been reported for the lead, and cadmium determination using platinum nanoflowers modified glassy carbon electrode (PtNFs/GCE). The effects of pH, deposition time, deposition potential, step potential were investigated on the stripping peak current of lead, and cadmium based on response surface methodology (RSM). The results of RSM analysis and analysis of variance (ANOVA) have shown that the experimental data could be well described by quadratic regression equations with determination coefficients (R2) of 0.935, and 0.972 for the stripping peak current of lead, and cadmium, respectively. Results of the statistical analysis showed that the fit of the model was good in all cases. The maximum stripping peak current of the lead, and cadmium of 5.54µA, and 2.81µA, respectively were obtained at the optimum levels of process variables (pH (4.72), deposition potential (-1.14V), deposition time (120s), step potential (7mV)). Testing the model to analyze lead, and cadmium on the PtNFs/GC electrode using differential pulse anodic stripping voltammetry (DPASV) and obtained with the stripping peak current of the lead, and cadmium of 5.43µA, and 2.75 µA, respectively.
Từ khóa tự do Methodology
Từ khóa tự do Phương pháp đáp ứng bề mặt
Từ khóa tự do PtNFs/GCE
Từ khóa tự do Response surface
Nguồn trích Journal of Science and Technology - NTTU2019p. 21-27 Số: 06
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082 |a621.319
245 |aSimultaneous effect of pH, deposition time, deposition potential, and step potential on the stripping peak current of lead and cadmium by response surface methodology / |cThi Lieu Nguyen, Van Hoang Cao, Thi Dieu Cam Nguyen, Thi Thanh Binh Nguyen, Quoc Trung Pham, Truong Giang Le
260 |aHo Chi Minh city : |bNguyen Tat Thanh University, |c2019
300 |a7 p.
520 |aIn this paper, a simple voltammetric method has been reported for the lead, and cadmium determination using platinum nanoflowers modified glassy carbon electrode (PtNFs/GCE). The effects of pH, deposition time, deposition potential, step potential were investigated on the stripping peak current of lead, and cadmium based on response surface methodology (RSM). The results of RSM analysis and analysis of variance (ANOVA) have shown that the experimental data could be well described by quadratic regression equations with determination coefficients (R2) of 0.935, and 0.972 for the stripping peak current of lead, and cadmium, respectively. Results of the statistical analysis showed that the fit of the model was good in all cases. The maximum stripping peak current of the lead, and cadmium of 5.54µA, and 2.81µA, respectively were obtained at the optimum levels of process variables (pH (4.72), deposition potential (-1.14V), deposition time (120s), step potential (7mV)). Testing the model to analyze lead, and cadmium on the PtNFs/GC electrode using differential pulse anodic stripping voltammetry (DPASV) and obtained with the stripping peak current of the lead, and cadmium of 5.43µA, and 2.75 µA, respectively.
653 |aMethodology
653 |aPhương pháp đáp ứng bề mặt
653 |aPtNFs/GCE
653 |aResponse surface
690 |aKhoa Cơ khí - Điện - Điện tử - Ô tô
773 |tJournal of Science and Technology - NTTU|d2019|gp. 21-27|x2615-9015|i06
890|c1|a0|b0|d6
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