Solid phase extraction method for selective determination of Pb(II) in water samples using 4-(4-methoxybenzylidenimine) thiophenole

2007 ◽  
Vol 142 (1-2) ◽  
pp. 368-373 ◽  
Author(s):  
M. Ghaedi ◽  
M. Montazerozohori ◽  
M. Soylak
Keyword(s):  
Solid Phase Extraction ◽  
Water Samples ◽  
Extraction Method ◽  
Solid Phase ◽  
Phase Extraction ◽  
Selective Determination

Development of an on-line solid phase extraction method based on new functionalized magnetic nanoparticles. Use in the determination of mercury in biological and sea-water samples

Talanta ◽  
2016 ◽  
Vol 153 ◽  
pp. 228-239 ◽  
Author(s):  
Elisa Vereda Alonso ◽  
M.M. López Guerrero ◽  
Pilar Colorado Cueto ◽  
José Barreno Benítez ◽  
José Manuel Cano Pavón ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Solid Phase Extraction ◽  
Water Samples ◽  
Extraction Method ◽  
Sea Water ◽  
Solid Phase ◽  
Phase Extraction ◽  
Functionalized Magnetic Nanoparticles ◽  
On Line

Magnetic nanoparticle based dispersive micro-solid-phase extraction for the determination of malachite green in water samples: optimized experimental design

2015 ◽  
Vol 39 (12) ◽  
pp. 9813-9823 ◽  
Author(s):  
Arash Asfaram ◽  
Mehrorang Ghaedi ◽  
Alireza Goudarzi ◽  
Mustafa Soylak ◽  
Sanaz Mehdizadeh Langroodi
Keyword(s):  
Experimental Design ◽  
Solid Phase Extraction ◽  
Malachite Green ◽  
Water Samples ◽  
Extraction Method ◽  
Solid Phase Microextraction ◽  
Magnetic Nanoparticle ◽  
Solid Phase ◽  
Phase Extraction

This paper presents an extraction method based on dispersive-nanoparticle-solid phase microextraction for the preliminary preconcentration and subsequent spectrophotometric determination of trace amounts of malachite green.

Application of syringe to syringe dispersive micro-solid phase extraction using a magnetic layered double hydroxide for the determination of cadmium(ii) and lead(ii) ions in food and water samples

2018 ◽  
Vol 10 (11) ◽  
pp. 1305-1314 ◽  
Author(s):  
Somayeh Arghavani-Beydokhti ◽  
Maryam Rajabi ◽  
Alireza Asghari
Keyword(s):  
Solid Phase Extraction ◽  
Layered Double Hydroxide ◽  
Water Samples ◽  
Extraction Method ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Sample Extraction ◽  
Double Hydroxide

In this work, a new mode of dispersive solid-phase extraction named syringe to syringe magnetic dispersive micro-solid phase extraction is presented as an efficient and eco-friendly sample extraction method.

scholarly journals Selective Determination of Acidic Drugs in Water Samples Using Online Solid Phase Extraction Liquid Chromatography with Alginate Incorporated Multi-Walled Carbon Nanotubes as Extraction Sorbent

2020 ◽  
Vol 20 (5) ◽  
pp. 987
Author(s):  
Nurzaimah Zaini @ Othman ◽  
Nor Suhaila Mohamad Hanapi ◽  
Nor’ashikin Saim ◽  
Wan Nazihah Wan Ibrahim ◽  
Ahmad Lutfi Anis
Keyword(s):  
Solid Phase Extraction ◽  
Water Samples ◽  
Solid Phase ◽  
Tap Water ◽  
Phase Extraction ◽  
Online Spe ◽  
Selective Determination ◽  
Acidic Drugs ◽  
Multi Walled Carbon Nanotubes

A rapid and effective method is developed for selective determination of five selected acidic drugs (salicylic acid, naproxen, diclofenac, ibuprofen and mefenamic acid) in water samples by using online solid phase extraction (Online-SPE) prior to liquid chromatography diode array detector (LC-DAD) analysis. In this study, Alginate incorporated multi-walled carbon nanotubes (Alg-MWCNT) beads were prepared and utilized as solid phase extraction sorbent. Optimization of online SPE-LC operating parameters such as valve switching time, composition of acetonitrile and buffer pH was conducted using Box-Behnken Design of Response Surface Methodology (RSM) to evaluate the interactive effects of these three variables. Under the optimized conditions (valve switching time: 1.5 min, composition of acetonitrile: MSA, 60:40 and buffer pH: pH 2), the method showed good linearity (1–500 μg L−1) with coefficient of determination (R2) of 0.9971–0.9996 and low limits of detection ≤ 0.018 µg L–1. The method showed high relative recoveries in the range of 75–110% for river water and tap water samples, respectively with RSDs of ≤ 7.8 (n = 3). This method was successfully applied to the determination of acidic drugs in river and tap water samples. In addition, Alg-MWCNT sorbent offered high degree of selectivity and efficiency for online SPE-LC-DAD analysis.

Sign in / Sign up

Export Citation Format

Share Document