Issue 12, 2013
From the journal:

Analytical Methods

Analysis of chlorpyrifos and chlorpyrifos-methyl residues in multi-environmental media by cloud-point extraction and HPLC†

Chao Zhang,a   Yan Jiao Wu,a   She Feng Jina  and  Hong Yang*ab  

* Corresponding authors

a Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Weigang No.1, Building of Chemistry, Nanjing 210095, China
E-mail: hongyang@njau.edu.cn
Tel: +86-25-84395207

b Department of Applied Chemistry, College of Science, Nanjing Agricultural University, Nanjing, China

Abstract

A method based on the cloud point extraction-high performance liquid chromatography (CPE-HPLC) has been developed for simultaneous extraction and quantification of the two pesticides, chlorpyrifos and chlorpyrifos-methyl, in water, soils and food vegetables. The non-ionic PEG-6000 was employed as the extraction solvent. Parameters and variables that affected the cloud point extraction (e.g. equilibration temperature and concentration of Na2SO4) were investigated. The optimal conditions for CPE were presented with 6% (w/v) PEG 6000, 3% (w/v) Na2SO4 and equilibration temperature at 65 °C for 65 min. Under these conditions, the recoveries of chlorpyrifos and chlorpyrifos-methyl spiked in water were 83.2–90.3% (RSD, 1.0–1.7) and 83.9–95.2% (RSD, 1.1–2.1), the recoveries in cabbage vegetable were 87.2–92.2% (RSD, 1.2–2.5) and 83.4–88.2% (RSD, 1.2–4.0), and those in soil were 88.8–100.6% (RSD, 1.7–4.1) and 83.9–92.9% (RSD, 0.9–2.4), respectively. The method presented here was proved to be rapid, efficient, and green for extraction and determination of chlorpyrifos and chlorpyrifos-methyl residues from food and multi-environmental media.

Graphical abstract: Analysis of chlorpyrifos and chlorpyrifos-methyl residues in multi-environmental media by cloud-point extraction and HPLC

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C3AY26623K
Article type
Paper
Submitted
29 Dec 2012
Accepted
02 May 2013
First published
03 May 2013

Anal. Methods, 2013,5, 3089-3095

Permissions

Request permissions

Analysis of chlorpyrifos and chlorpyrifos-methyl residues in multi-environmental media by cloud-point extraction and HPLC

C. Zhang, Y. J. Wu, S. F. Jin and H. Yang, Anal. Methods, 2013, 5, 3089 DOI: 10.1039/C3AY26623K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements