Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples

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RAMIN MARYAM; KHADEM MONIREH; OMIDI FARIBORZ; POURHOSSEIN MEHRAN; GOLBABAEI FARIDEH; SHAHTAHERI SEYED JAMALEDDIN

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Journal: Iranian Journal of Public Health Year:2019 | Volume:48 | Issue:10 Page(s): 1893-1902

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Title

Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples

Author(s)

Keywords

Malathion

Dispersive liquid-liquid microextraction

One variable at a time

Urine

HPLC

Abstract

Background: Measurement of pesticides in biological matrices is become a serious challenge for researches because of their very low concentration in different matrices. The aim of this study was to develop a new sample preparation method with high accuracy and validity, simplicity and short retention time for determination of Malathion. Methods: Dispersive liquid-liquid micro-extraction (DLLME) technique coupled with high-performance liquid chromatography equipped with ultraviolet detector (HPLC-UV) developed for trace extraction and determination of Malathion pesticide in human Urine samples. This study was done in 2017 at Tehran University of Medical Sciences, Tehran, Iran. One variable at a time (OVAT) method was used to optimize parameters affecting the Malathion extraction. Different parameters such as extraction solvent, disperser solvent, and volume of the extraction solvent, volume of the disperser solvent, centrifugation time and speed, salt addition, and sample pH were studied and optimized. Results: Under the optimized conditions, the limit of detection and enrichment factor of the method were 0. 5 µ g L-1 and 200, respectively. The calibration curve was linear in the concentration range of 2-250 µ g L-1. The relative standard deviation for six replicate experiments at 200 µ g L-1 concentration was less than 3%. The relative recoveries of spiked Urine samples were 96. 3%, 101. 7% and 97. 3% at three different concentration levels of 50, 200 and 1000 µ g L-1, respectively. Conclusion: DLLME procedure was successfully developed for the extraction of Malathion from human Urine samples. Compared to other extraction techniques, the proposed procedure had some advantages such as shorter extraction time, better reproducibility, and higher enrichment factor.

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APA: Copy

RAMIN, MARYAM, KHADEM, MONIREH, OMIDI, FARIBORZ, POURHOSSEIN, MEHRAN, GOLBABAEI, FARIDEH, & SHAHTAHERI, SEYED JAMALEDDIN. (2019). Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples. IRANIAN JOURNAL OF PUBLIC HEALTH, 48(10), 1893-1902. SID. https://sid.ir/paper/756815/en

Vancouver: Copy

RAMIN MARYAM, KHADEM MONIREH, OMIDI FARIBORZ, POURHOSSEIN MEHRAN, GOLBABAEI FARIDEH, SHAHTAHERI SEYED JAMALEDDIN. Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples. IRANIAN JOURNAL OF PUBLIC HEALTH[Internet]. 2019;48(10):1893-1902. Available from: https://sid.ir/paper/756815/en

IEEE: Copy

MARYAM RAMIN, MONIREH KHADEM, FARIBORZ OMIDI, MEHRAN POURHOSSEIN, FARIDEH GOLBABAEI, and SEYED JAMALEDDIN SHAHTAHERI, “Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples,” IRANIAN JOURNAL OF PUBLIC HEALTH, vol. 48, no. 10, pp. 1893–1902, 2019, [Online]. Available: https://sid.ir/paper/756815/en

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