Application of an optimized modified stir bar with ZnS nanoparticles loaded on activated carbon for preconcentration of carbofuran and propoxur insecticides in water samples and their HPLC determination

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36238-36247 ◽  
Author(s):  
Arezou Amiri Pebdani ◽  
Saeid Khodadoust ◽  
Mehdi Akbartabar Toori ◽  
Vahid Zarezade ◽  
Mohammad Sharif Talebianpoor
Keyword(s):  
Ionic Liquid ◽  
Activated Carbon ◽  
Water Samples ◽  
Sol Gel ◽  
Stir Bar Sorptive Extraction ◽  
Hplc Determination ◽  
Zns Nanoparticles ◽  
Sorptive Extraction ◽  
Gel Technique

In this study, the stir bar was coated with the ZnS-NPs loaded on activated carbon (ZnS-AC) as well as [EMIM][PF6] ionic liquid using sol gel technique was used for stir bar sorptive extraction (SBSE) of carbofuran and propoxur.

MIL-101/GO Coated Stir Bar for SBSE to Determine Azo Dyes in Water Samples by UV–Vis Spectrophotometric Method

Nano LIFE ◽  
2015 ◽  
Vol 05 (03) ◽  
pp. 1542004 ◽  
Author(s):  
Qiong Yi ◽  
Ling Li ◽  
Wei Hong ◽  
Lu Fan
Keyword(s):  
Azo Dyes ◽  
Water Samples ◽  
Metal Organic Framework ◽  
Sol Gel ◽  
Enrichment Factors ◽  
Stir Bar Sorptive Extraction ◽  
Sunset Yellow ◽  
Sorptive Extraction ◽  
Metal Organic ◽  
First Time

A composite of chromium (III) terephthalate metal-organic framework and graphene oxide (MIL-101/GO) coated stir bar was prepared by sol–gel technique for the first time and was employed for stir bar sorptive extraction (SBSE) of trace azo dyes amaranth, sunset yellow and carmine from water samples followed by UV–Vis spectrophotometric detection. A MIL-101/GO coating was first created on the glass bar surface. MIL-101/GO and MIL-101/GO coated stir bars were characterized. The enrichment factors of azo dyes by SBSE have been investigated in detail, and the optimized experimental parameters were obtained. Under the optimal conditions, a method for determination of trace amount of azo dyes was setup, and the detection limits of amaranth, sunset yellow and carmine were 2.3 ng/mL, 1.7 ng/mL and 1.6 ng/mL. The proposed method was successfully applied for the analysis of the three azo dyes in water samples.

Ionic liquid magnetic bar microextraction and HPLC determination of carbamate pesticides in real water samples

2012 ◽  
Vol 179 (3-4) ◽  
pp. 193-199 ◽  
Author(s):  
Sha Peng ◽  
Jing Xiao ◽  
Jing Cheng ◽  
Miao Zhang ◽  
Xiaoyan Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Water Samples ◽  
Hplc Determination ◽  
Carbamate Pesticides ◽  
Real Water Samples
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