Application of MEKC to the monitoring of atrazine sorption behaviour on soils

Journal of Separation Science
Diana L D LimaValdemar I Esteves

Abstract

Measuring interactions between soils and xenobiotics is critical to assess the threat to water resources posed by potentially harmful chemicals. Such studies are done via batch experiments where the chemical of interest is incubated with the soil for a long period of time. However, the analysis of the remaining concentration in the aqueous phase is often troublesome, due to dissolved organic matter that can interfere with the analysis. Thus, for such application a lengthy sample clean-up is often needed prior to analysis. The aim of this work was to develop an alternative approach to monitor atrazine using MEKC. A buffer of 10 mM NaH(2)PO(4) and 50 mM SDS was used to separate atrazine and soil organic matter in less than 7 min. Samples were injected without any pre-treatment leading to a significantly lower total analysis time (sample clean-up, column conditioning, separation) than HPLC. After full optimisation, good repeatability of retention time (RSD<1%) and peak areas (RSD<3%) was achieved as well as a good linearity (r(2)=0.9994) and relatively low LOD (0.26 mg/L). The method was applied to study the sorption of atrazine to a soil sample using batch equilibrium technique.

References

Dec 20, 1999·Journal of Agricultural and Food Chemistry·M M Socías-VicianaF Flores-Céspedes
Feb 24, 2001·Journal of Environmental Quality·O S MbuyaK J Boote
May 10, 2002·Pest Management Science·R Don WauchopeJohn B Unsworth
Aug 23, 2003·Journal of Environmental Quality·M Cade SmithWilliam Kingery
Sep 24, 2004·Water Research·Jeong-Hun ParkStephen A Boyd
Mar 25, 2006·Journal of Colloid and Interface Science·Ilias D KovaiosAlkiviades Ch Payatakes
Jan 16, 2007·Chemosphere·F V CorreiaT Langenbach
Apr 1, 2008·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·David K Lloyd
Jul 20, 2010·Annual Review of Analytical Chemistry·Shigeru Terabe

❮ Previous
Next ❯

Citations

Feb 12, 2010·Journal of Agricultural and Food Chemistry·Diana L D LimaValdemar I Esteves

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.