Combined microporous membrane-based liquid–liquid–liquid microextraction and in situ differential pulse voltammetry for highly sensitive detection of trimipramine

2013 ◽  
Vol 5 (16) ◽  
pp. 4027 ◽  
Author(s):  
Ali A. Ensafi ◽  
Sedigheh Rabiei ◽  
Behzad Rezaei ◽  
Mehdi Jafari-Asl
Keyword(s):  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Microporous Membrane ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Pulse Voltammetry ◽  
Highly Sensitive Detection ◽  
Liquid Microextraction

In situ formation of SERS hot spots by a bis-quaternized perylene dye: a simple strategy for highly sensitive detection of heparin over a wide concentration range

The Analyst ◽  
2018 ◽  
Vol 143 (8) ◽  
pp. 1899-1905 ◽  
Author(s):  
Wei Ji ◽  
Xue Zhang ◽  
Jianzhang Zhao ◽  
Ye Gao ◽  
Wei Song ◽  
...  
Keyword(s):  
Hot Spots ◽  
Hot Spot ◽  
Sensitive Detection ◽  
Simple Strategy ◽  
Assembly Method ◽  
Highly Sensitive ◽  
In Situ Formation ◽  
Perylene Dye ◽  
Highly Sensitive Detection

We have demonstrated a simple SERS assay for the sensitive detection of heparin by means of an in situ hot spot assembly method.

scholarly journals Application of Experimental Design by Differential Pulse Voltammetry for Determination of Rare Elements as Complexes with Diethylenetriaminepentaacetic Acid (DTPA)

2019 ◽  
Vol 8 (2S7) ◽  
pp. 33-37
Keyword(s):  
Experimental Design ◽  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Modern Technology ◽  
Sensitive Detection ◽  
Limit Values ◽  
Rare Elements ◽  
Icp Ms ◽  
Burman Design ◽  
Pulse Voltammetry

Rare earth elements have been known as the importance material in modern technology. Since the presence of these materials in environment is very small concentration, the development method for fast and sensitive detection is challenging. Instead of relatively expensive ICP-MS instrument, the utilization of voltammetry method to answer the task of fast and sensitive detection is considerably cheaper. In the present work, a complex of Gadolinium (Gd) and Terbium (Tb) with diethylentriaminepentaacetic acid (DTPA) ligand was studied by experimental design to obtain the optimum condition detection of differential pulse voltammetry. The Plackett-Burman design was selected as the method. The positive response was optimized based on Box-Behnken. Optimum experimental condition was achieved by using scan rate of 0.05 Vs-1 , amplitude pulse of 0.5489 V, ligand concentration of 267.67 mgL-1 , pH of 5.15 and the electrolyte solution of ammonium chloride of 0.1 M. Under the optimum experimental condition, the precision and accuracy were found as 99.7% and 97.4% for Gd-DTPA; and 99.5% and 91.4% for Tb-DTPA. The detection limit and quantization limit values for Gd-DTPA were 27.11 mgL-1 and 92.33 mgL-1 , respectively; and Tb-DTPA were 27.69 mgL-1 and 92.34 mgL-1 , respectively.

Electrically stimulated liquid phase microextraction combined with differential pulse voltammetry: a new and efficient design for in situ determination of clozapine from complicated matrices

RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 12943-12952 ◽  
Author(s):  
Ahmad Rouhollahi ◽  
Masoomeh Kouchaki ◽  
Shahram Seidi
Keyword(s):  
Liquid Phase ◽  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Efficient Design ◽  
Liquid Phase Microextraction ◽  
Electromembrane Extraction ◽  
Pulse Voltammetry ◽  
Complicated Matrices

Electromembrane extraction combined with differential pulse voltammetry for in situ determination of clozapine from complicated matrices.

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