Application of ultrasonication for facilitating the extraction of hippuric acid and methyl hippuric acid in real samples using Fe3O4@SiO2@sodium dodecyl sulfate: experimental design methodology

2018 ◽  
Vol 10 (37) ◽  
pp. 4588-4595 ◽  
Author(s):  
Fariborz Omidi ◽  
Mohammad Behbahani ◽  
Monireh Khadem ◽  
Farideh Golbabaei ◽  
Seyed Jamaleddin Shahtaheri
Keyword(s):  
Extraction Method ◽  
Design Methodology ◽  
Hippuric Acid ◽  
Solid Phase ◽  
Sodium Dodecyl ◽  
Ultrasonic Power ◽  
Real Samples ◽  
Experimental Design Methodology ◽  
Surfactant Assisted

A surfactant assisted dispersive micro solid phase extraction method coupled with ultrasonic power is reported for determination of HA and MHA from human urine samples.

Experimental Design Methodology to Optimize the Solid Phase Microextraction Procedure Prior to GC/MS Determination of Ethyl Carbamate in Samples of Homemade Cachaça

2012 ◽  
Vol 45 (10) ◽  
pp. 1143-1155 ◽  
Author(s):  
Ana Maria de Resende Machado ◽  
Maria das Graças Cardoso ◽  
Elissandro Soares Emídio ◽  
Vanessa de Menezes Prata ◽  
Haroldo Silveira Dórea ◽  
...  
Keyword(s):  
Experimental Design ◽  
Solid Phase Microextraction ◽  
Design Methodology ◽  
Solid Phase ◽  
Ethyl Carbamate ◽  
Experimental Design Methodology

Experimental Design Methodology Applied to Mercury Determination: Hair Samples as a Mercury Bioindicator

2015 ◽  
Vol 98 (1) ◽  
pp. 176-182
Author(s):  
Mohammad Karimi ◽  
Forouzan Aboufazeli ◽  
Hamid Reza Lotfi Zadeh Zhad ◽  
Omid Sadeghi ◽  
Ezzatollah Najafi
Keyword(s):  
Magnetic Nanoparticles ◽  
Design Methodology ◽  
Solid Phase ◽  
Mercury Determination ◽  
Hair Samples ◽  
Preconcentration Factor ◽  
Modified Magnetic Nanoparticles ◽  
Surface Response Design ◽  
Experimental Design Methodology

Abstract The application of modified magnetic nanoparticles in extraction of trace Hg was investigated. For this purpose, surfaces of magnetic nanoparticles were modified by 2-picolamine and then utilized as a solid-phase sorbent for Hg(II) extraction. A statisticalmethod, based on surface response design, has been used for the optimization of Hg ion elution from the magnetic nanoparticles. The sorbed Hg ions were eluted quantitatively with 5.5 mL of a solution containing 0.8 M HCl and 0.08 M EDTA after 12 min. The recovery value in this method was 98.6% with RSD of 1.4%,and the obtained LOD was 0.01 ng/mL. The preconcentration factor was calculated to be 179. The method was applied to the determination of hair Hg content for biomonitoring purposes.

Optimization of magnetic extraction by experimental design methodology for the determination of antidepressants in biological samples

2015 ◽  
Vol 7 (15) ◽  
pp. 6231-6242 ◽  
Author(s):  
Şevket Ata ◽  
Merve Berber ◽  
Hasan Çabuk ◽  
Mehmet Akyüz
Keyword(s):  
Biological Samples ◽  
Design Methodology ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Magnetic Nanocomposites ◽  
Ultraviolet Detection ◽  
Magnetic Solid ◽  
Magnetic Extraction ◽  
Experimental Design Methodology

In this study, a novel and sensitive magnetic solid phase extraction (MSPE) method based on Fe3O4–MgSiO3 magnetic nanocomposites was developed for extraction and preconcentration of venlafaxine, escitalopram, paroxetine, sertraline and fluoxetine in biological samples followed by liquid chromatography-ultraviolet detection (LC-UV).

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