Selective Determination of Selenium in Garlic, Mushroom and Water Samples by Chemically Modified Mesoporous Silica Solid Phase Coupled with ICP-OES

2012 ◽  
Vol 6 (2) ◽  
pp. 548-558 ◽  
Author(s):  
Hassan Sereshti ◽  
Yeganeh Entezari Heravi ◽  
Soheila Samadi ◽  
Alireza Badiei ◽  
Nastaran Hayati Roodbari
Keyword(s):  
Mesoporous Silica ◽  
Water Samples ◽  
Solid Phase ◽  
Icp Oes ◽  
Selective Determination ◽  
Chemically Modified

Multi-element determination of copper, iron, nickel, manganese, lead and zinc in environmental water samples by ICP OES after solid phase extraction with a C18 cartridge loaded with 1-(2-pyridylazo)-2-naphthol

2015 ◽  
Vol 7 (20) ◽  
pp. 8714-8719 ◽  
Author(s):  
Roberta N. C. S. Carvalho ◽  
Geysa B. Brito ◽  
Maria G. A. Korn ◽  
Josanaide S. R. Teixeira ◽  
Fábio de S. Dias ◽  
...  
Keyword(s):  
Water Samples ◽  
Solid Phase ◽  
Environmental Water ◽  
Icp Oes ◽  
Element Determination ◽  
Lead And Zinc ◽  
Iron Nickel ◽  
Nickel Manganese ◽  
Determination Of Copper

A pre-concentration solid-phase procedure for determination of metals in water samples by ICP OES.

Selective determination of gold(III) ion using CuO microsheets as a solid phase adsorbent prior by ICP-OES measurement

Talanta ◽  
2013 ◽  
Vol 104 ◽  
pp. 75-82 ◽  
Author(s):  
Mohammed M. Rahman ◽  
Sher Bahadar Khan ◽  
Hadi M. Marwani ◽  
Abdullah M. Asiri ◽  
Khalid A. Alamry ◽  
...  
Keyword(s):  
Solid Phase ◽  
Icp Oes ◽  
Selective Determination

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