Posters
« Back
ANALYSIS OF TRIAZINE AND PHENYLUREA HERBICIDES IN SOIL BY MICROWAVE-ASSISTED EXTRACTION AND LIQUID CHROMATOGRAPHY
EP25649
Poster Title: ANALYSIS OF TRIAZINE AND PHENYLUREA HERBICIDES IN SOIL BY MICROWAVE-ASSISTED EXTRACTION AND LIQUID CHROMATOGRAPHY
Submitted on 31 Mar 2017
Author(s): Gordana Mendaš, Iva Habinovec, Vlasta Drevenkar, Marija Dvoršćak, Sanja Fingler, Sanja Stipičević, Želimira Vasilić
Affiliations: Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10000 Zagreb, Croatia
This poster was presented at Croatian Meeting of Chemist and Chemical Engineers
Poster Views: 692
View poster »


Poster Information
Abstract: A microwave-assisted extraction procedure was designed for the extraction of phenylurea herbicides isoproturon, chlortoluron, diuron and linuron, triazine herbicide terbuthylazine, and its degradation product deethylterbuthylazine from soil. The sample preparation was optimized for final analysis by high-performance liquid chromatography with a UV diode array detector. The limit of detection for all the analytes in standard mixture prepared in deionized water was 5 ng ml-1, whereas the limit of quantification was 18 ng ml-1. The effects of the extraction solvent, temperature, and water content in soil on microwave extraction efficiency of triazines and phenylurea herbicides from soil were investigated by analysing spiked soil samples. The analytes were added to a forest soil in mass fractions ranging from 93 ng g-1 to 113 ng g -1. The best results were achieved by extraction of soil with solvent mixture ψ(acetone, n-hexane) = 1:1 at 60 °C and at soil water content of 20 %. The extraction efficiency from Cmrok wet soil was 84 % for isoproturon, 80 % for chlortoluron, 60 % for diuron, 85 % for linuron, 93 % for terbuthylazine, and 95 % for deethylterbuthylazine. Extraction efficiency and reproducibility of triazine and phenylurea herbicides with ψ(acetone, n-hexane) = 1:1 at 60 °C was also tested by extracting analytes from two agricultural dry and wet soils to which they were added at different mass fraction levels ranging from 37 ng g-1 to 45 ng g-1, from 93 ng g-1 to 113 ng g-1, and from 374 ng g-1 to 450 ng g-1. The extraction efficiency of analytes was not dependent on their mass fractions in soil. The recoveries ranged from 72 % for isoproturon and diuron to 79 % for deethylterbuthylazine with relative standard deviation between 7 % and 10 %. The limit of detection for all of the analytes in soil was 10 ng g-1.

Summary: A microwave-assisted extraction procedure was designed for the extraction of phenylurea herbicides isoproturon, chlortoluron, diuron and linuron, triazine herbicide terbuthylazine, and its degradation product deethylterbuthylazine from soil.Report abuse »
Questions
Ask the author a question about this poster.
Ask a Question »

Creative Commons

Related Posters


Degradation of Artificially Aged Vegetable-Tanned Leather using RP-HPLC and FTIR-ATR
Yadi Hu, Eleni Tziamourani, SC Boyatzis, Jingru Wang, Lvyang Wang, Keyong Tang

The Optimum Food for AIDS Patients’ Health Support
Abu_bakir Imad hamdi

"Juggling Fire in the Jungle" My journey of thirty years living in a sustainable community experiment
Graham Ellis

FENOLOGÍA, MORFOLOGÍA FLORAL Y PALINOLOGÍA DE Coffea arábica L.
Cristian Camilo Leguízamo Gutiérrez; Monica Patricia Osorio Tangarife, Guillermo Salamanca Grosso

Micropillar-assisted electric field enhancement for high-efficiency inactivation of bacteria
S Pudasaini · A. T. K. Perera · S. S. U. Ahmed · Sum Huan Ng · Chun Yang