Results 151 to 160 of about 1,341 (180)

Evaluation of Wet Digestion and QuEChERS-DLLME for Heavy Metal Determination in Aqueous Solutions

9th International Students Science Congress Proceedings Book
The QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method, when coupled with Dispersive Liquid-Liquid Microextraction (DLLME), represents an innovative and efficient approach in analytical chemistry for the extraction and determination of contaminants in complex matrices, including environmental and aqueous samples. This study evaluates the
Aminu Akilu, Ismail Muhammad, Abubakar Lawal   +2 more
openaire   +1 more source

DLLME Combined with GC–MS for the Determination of Methylparaben, Ethylparaben, Propylparaben and Butylparaben in Beverage Samples

Chromatographia, 2010
Dispersive liquid–liquid microextraction (DLLME) combined with gas chromatography-mass spectrometry (GC–MS) has been developed for the determination of four parabens (methylparaben, ethylparaben, propylparaben and butylparaben) in beverage samples. Some important parameters, such as the kinds and volumes of extraction solvent and dispersive solvent ...
Yi Han, Xiaoyu Jia, Xinli Liu, Taicheng Duan, Hangting Chen   +4 more
openaire   +1 more source

Analysis of PAHs in Water and Fruit Juice Samples by DLLME Combined with LC-Fluorescence Detection

Chromatographia, 2009
A simple, rapid and efficient method termed dispersive liquid–liquid microextraction combined with liquid chromatography-fluorescence detection, has been developed for the extraction and determination of polycyclic aromatic hydrocarbons (PAHs) in water and fruit juice samples.
Xinna Zhao, Lingyan Fu, Jia Hu, Jianwang Li, Huili Wang, Changjiang Huang, Xuedong Wang   +6 more
openaire   +1 more source

[Simultaneous determination of 6 neonicotinoid residues in soil using DLLME-HPLC and UV].

Guang pu xue yu guang pu fen xi = Guang pu, 2015
A simple, cheap and rugged method was developed for simultaneous deter mination of 6 neonicotinoid residues in soil, including imidacloprid, acetamiprid, thiamethoxam, thiacloprid, clothianidin and nitenpyram. The soil sample was produced by dispersive liquid-liquid micro-extraction (DLLME) after extracted by the mixed solution of acetonitrile and ...
Bao-li, Sun, Hong, Shan, Yan-hua, Li, Ya-ling, Zeng, Xiu-li, Shen, Cheng-feng, Tong   +5 more
openaire   +1 more source

Polymer-coated MOF for effective pesticides’ sorbent in combined DSPE-DLLME method

Chemical Papers, 2022
Zahra Shokouhmandi, Ardeshir Shokrollahi
openaire   +1 more source

Dispersant-First Dispersive Liquid-Liquid Microextraction (DF-DLLME), a Novel Sample Preparation Procedure for NDMA Determination in Metformin Products

Journal of Pharmaceutical Sciences, 2023
Giorgio Blom, Stephen Holman, Nicholas O'Neill   +2 more
exaly  

Development of QuEChERS-DLLME method for determination of neonicotinoid pesticide residues in grains by liquid chromatography-tandem mass spectrometry

Food Chemistry, 2020
Bo Qiu, Haipu Li, Fangyuan Peng
exaly  

Analysis of PAHs in Brazilian coffee by combining QuEChERS and LD-DLLME

Journal of Food Composition and Analysis
Edilaine Alves, Lucas Caldeirão, Wellington da Silva Oliveira, Aline de Oliveira Garcia, José Teixeira Filho, Leandro Wang Hantao, Helena Teixeira Godoy   +6 more
openaire   +1 more source

The Study of Matrix Interference of Vegetable Samples in Dispersive Liquid-Liquid Microextraction (DLLME)

Modern Environmental Science and Engineering, 2015
Premla Devi Chander, Chai Mee Kin, Wong Ling Shing   +2 more
openaire   +1 more source

Inverse dispersive liquid-liquid microextraction(I-DLLME) for the simultaneous and green preconcentration of DEET and permethrin from freshwater

Sustainable Chemistry and Pharmacy, 2022
Elma Neide Vasconcelos Martins Carrilho, Georgia Labuto, Lemos S G   +2 more
exaly