نتایج جستجو برای: dispersive liquidliquid microextraction dllme

تعداد نتایج: 20479  

Abdi, Khosrou , Daneyali, Ali , Heidari, Mahmoud , Heravizadeh, Omid , Kamgou, Somayeh , Khadem, Monire , shahtaheri, Seyed Jamaloddin ,

Introduction: Todays, exposure to heavy metals is happened by being produced in various environmental, industrial processes. The production of metals finally results in air pollution as well as contamination in the food chain. There are harmful effects of heavy metals such as cadmium on different organs. Therefore, this study aimed to identify and quantify cadmium in biological samples using DL...

Journal: :Journal of the Turkish Chemical Society, Section A: Chemistry 2021

As a matter of fact, the Dietary Guidelines United States America recommended consumption more fruits and vegetables to support healthy condition body. Unfortunately, these food materials are being accumulated with pesticidal residues due continuous miss-management excessive application chemicals during pre post-agricultural practices, which compels multiple analysis know their concentration le...

Journal: :Journal of Chemistry 2021

Isolation and enrichment of multiclass pesticides’ residue, namely, fungicides (benalaxyl), herbicides (atrazine), carbamate insecticides (carbofuran), organophosphate (chlorpyrifos), organochlorine (4,4′-DDT), pyrethroid (bifenthrin), were made by combining acetone-based salting-out assisted extraction with the dispersive liquid-liquid microextraction (SADLLME) method, followed high-performanc...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
mahmoud chamsaz mohadese hossein poor zaryabi mohammad hossein arbab zavar abolfazl darroudi

dispersive liquid-liquid microextraction technique based on solidification of a floating organic drop (dllme-sfo) combined with flame atomic absorption spectrometry was developed for determination of thallium in water sample. an appropriate mixture of acetone and 1-undecanol was rapidly injected into an aqueous sample containing tlcl4- which forms an ion pair with brilliant green reagent and as...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
soleiman bahar razieh zakerian

in this study, we combined ionic liquid-based dispersive liquid liquid micro extraction (il-dllme) with faas for determining the palladium in different real samples at the trace level. 1-hexyl-3-methylimidazolium hexafluorophosphate [hmim][pf6] ionic liquid and 1-(2-pyridylazo) 2-naphthol (pan), were chosen as the extraction solvent and the chelating agent, respectively. the hydrophobic pd–pan ...

Journal: :Journal of The Iranian Chemical Society 2021

Abstract In this study, magnetic-dispersive solid-phase extraction coupled with ion pair-dispersive liquid–liquid micro-extraction (MSPE-i-DLLME) was used to the pre-concentration and of five sulfonamides residues (sulfadiazine, sulfathiazole, sulfacetamide, sulfamethazine sulfamethoxazole) in animal foodstuffs. The are extracted using magnetic carbon nanocomposite then eluted acetonitrile. DLL...

Journal: :Chinese Journal of Analytical Chemistry 2009

2014
Parul Puri

Inevitable presence of pesticides in foods demands development of efficient multiresidue methods for risk evaluation. Extraction of pesticide trace contaminants from foodstuffs is a laborious task. Development of reliable sample preparation procedures, characterized by the simplicity of both the operations and the devices involved in analytical process is need of the hour. Effective minimizatio...

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