Chemometric Analytical Approach for the Cloud Point Extraction and Inductively Coupled Plasma Mass Spectrometric Determination of Zinc Oxide Nanoparticles in Water Samples

2012 ◽  
Vol 84 (15) ◽  
pp. 6546-6552 ◽  
Author(s):  
Seyed Mohammad Majedi ◽  
Hian Kee Lee ◽  
Barry C. Kelly
Keyword(s):  
Zinc Oxide ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Zinc Oxide Nanoparticles ◽  
Analytical Approach ◽  
Cloud Point Extraction ◽  
Mass Spectrometric ◽  
Oxide Nanoparticles ◽  
Inductively Coupled

Chitosan–Zinc Oxide Nanoparticles Combined with Dispersive Liquid–Liquid Microextraction for the Determination of BTEX in Water Samples

2015 ◽  
Vol 68 (3) ◽  
pp. 481 ◽  
Author(s):  
Mostafa Khajeh ◽  
Leyla Azarsa ◽  
Mansoureh Rakhshanipour
Keyword(s):  
Zinc Oxide ◽  
Water Samples ◽  
Zinc Oxide Nanoparticles ◽  
Solid Phase ◽  
Oxide Nanoparticles ◽  
Flame Ionization ◽  
Relative Standard ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

In this study, chitosan–zinc oxide nanoparticles were used as an adsorbent matrix for solid-phase extraction and combined with dispersive liquid–liquid microextraction (SPE–DLLME) for determination of benzene, toluene, ethylbenzene, and xylene isomers (BTEX) in water samples. The eluent of SPE was used as the dispersive solvent of the DLLME for further purification and enrichment of the BTEX prior to gas chromatography-flame ionization detector analysis. The effect of variables, including amount of adsorbent, sample and eluent flow rate, type and volume of extraction and dispersive solvent, salt concentration, and extraction time, was investigated and they were optimized. Under the optimum conditions, good linearity for all BTEX with determination coefficients in the range of 0.9993 < r2 < 0.9997, suitable precision (1.4 % < RSD <1.9 %; where RSD refers to relative standard deviation), and low detection limits (0.5–1.1 µg L–1) were achieved. The current chitosan–zinc oxide nanoparticles SPE–DLLME procedure combines the advantages of SPE and DLLME, and was applied for determination of BTEX in water samples and acceptable recoveries were obtained.

Determination of heavy metals in water samples using dual-cloud point extraction coupled with inductively coupled plasma mass spectrometry

2015 ◽  
Vol 7 (16) ◽  
pp. 6732-6739 ◽  
Author(s):  
Guilong Peng ◽  
Qiang He ◽  
Guangming Zhou ◽  
Yong Li ◽  
Xiaoxuan Su ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Cloud Point ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Cloud Point Extraction ◽  
Inductively Coupled ◽  
Real Water Samples ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

A dual-cloud point extraction (d-CPE) technique combined with inductively coupled plasma mass spectrometry (ICP-MS) was used for preconcentration and determination of Cr, Ga, Ag, Cd, Mn, Fe, In, Cu, Ni, Co, Pb and Zn in real water samples.

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