Results 101 to 110 of about 76,914 (265)

Measurement of Chloroform in Swimming Pools' Waters and Swimmers’ Blood

Iranian Journal of Public Health, 2009
Background: A new microextraction method named dispersive liquid-liquid microextraction (DLLME) for determination of chloroform in pool water and blood of swimmers after swimming is described.
S Shegefti, H Sereshti, S Samadi
doaj  

Applications of Liquid-Phase Microextraction in the Sample Preparation of Environmental Solid Samples

Molecules, 2014
Solvent extraction remains one of the fundamental sample preparation techniques in the analysis of environmental solid samples, but organic solvents are toxic and environmentally harmful, therefore one of the possible greening directions is its ...
Helena Prosen
doaj   +1 more source

Atmospheric pressure gas chromatography-time-of-flight-mass spectrometry (APGC-ToF-MS) for the determination of regulated and emerging contaminants in aqueous samples after stir bar sorptive extraction (SBSE) [PDF]

, 2014
This work presents the development, optimization and validation of a multi-residue method for the simultaneous determination of 102 contaminants, including fragrances, UV filters, repellents, endocrine disruptors, biocides, polycyclic aromatic ...
Arbulu, Azzouz, Barco-Bonilla, Buchholz, Cacho, Camino-Sánchez, Canellas, de Sousa, Domeño, Eduardo González-Mazo, Esteve-Turrillas, Gago-Ferrero, Gomez, Jaspers, Johnsen, Kataoka, Kawaguchi, Kawaguchi, Krüger, Kumirska, Liu, Machado, Magi, Marina G. Pintado-Herrera, Negreira, Ochiai, O′Toole, Pablo A. Lara-Martín, Pintado-Herrera, Pintado-Herrera, Portolés, Prieto, Pérez-Carrera, Quintana, Ramírez, Rodil, Sampedro, Sanchez-Ortega, Stevens   +38 more
core   +2 more sources

Surfactant-Modified Dispersive Liquid–Liquid Microextraction for the Determination of Salbutamol or Dapsone via Reciprocal Derivatization

Indonesian Journal of Chemistry
Salbutamol (SAL) and dapsone (DPSN) derivatization reactions and analysis procedures were established and improved in this study. SAL was used as a derivatization agent for DPSN, and DPSN was a derivatization agent for SAL.
Bahaa Malik Altahir, Thulfiqar Jabbar Al-hraishawi, Keith Edward Taylor   +2 more
doaj   +1 more source

Scientific Substantiation of the Methodology of Preparation of Quince Japanese for Analysis and Investigation of Consumer Properties of the Products of Its Recycling [PDF]

, 2019
The aim of the study is a scientific substantiation of the methodology of quince Japanese for analyzing and investigating consumer properties of its recycling products.
Lisnichenko, O. (Olena), Odarchenko, A. (Andrey), Odarchenko, D. (Dmytro), Spodar, K. (Kateryna)   +3 more
core   +3 more sources

Dispersive Liquid–Liquid Chelate Microextraction of Rare Earth Elements: Optimization and Greenness Evaluation

Metals
An ultrasound-assisted dispersive liquid–liquid microextraction (DLLME) method was developed to concentrate and quantify rare earth elements (REEs) (Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) in acidic aqueous solutions ...
Milica Delić, Mirjana Ristić, Maja Đolić, Aleksandra Perić-Grujić, Antonije Onjia   +4 more
doaj   +1 more source

The role of GC-MS/MS with triple quadrupole in pesticide residue analysis in food and the environment [PDF]

, 2013
Gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) using a triple quadrupole (QqQ) analyzer has in the last few years become a powerful technique for the determination of pesticide residues due to its robustness, and excellent sensitivity ...
Beltran Arandes, Joaquin, Cervera Vidal, María Inés, Hernandez, Felix, Pitarch, Elena, Portoles, Tania   +4 more
core   +1 more source

Electrokinetic Supercharging In Capillary Electrophoresis For The On-Line Preconcentration Of Secbumeton In Water Samples [PDF]

, 2017
Dalam kajian ini, suatu kaedah prapemekatan disebut superpengecasan elektrokinetik elektroforesis zon rerambut (EKS-CZE) telah dibangunkan bagi penentuan sekbumeton (SEC) di dalam sampel air sekitaran In this study, an on-line preconcentration method ...
Soeung, Rasmey
core  

Rapid analysis of triclosan in water samples using an in-tube ultrasonication assisted emulsification microextraction coupled with gas chromatography-electron capture detection [PDF]

, 2013
In this study, a new in-tube based ultrasound-assisted emulsification microextraction (IT-USAEME) technique coupled with gas chromatography-micro-electron capture detection (GC-μECD) was developed for the efficient and rapid analysis of triclosan in ...
Abilasha Ramkumara, Chiao-Wen Lin, Hou-Kung Shih, Jen-Fon Jen, Vinoth Kumar Ponnusamy   +4 more
core   +1 more source

Cyclic voltammetry : a tool to quantify 2,4,6-trichloroanisole in aqueous samples from cork planks boiling industrial process [PDF]

, 2013
Chloroanisoles, namely 2,4,6-trichloroanisole, are pointed out as the primary responsible of the development of musty off-flavours in bottled wine, due to their migration from cork stoppers, which results in huge economical losses for wine industry.
Ana C.A. Veloso, António M. Peres, Campillo, Campillo, Chatonnet, Coque, Duarte, Ermer, Exquerro, Fontana, Freitas, Gutiérrez, Gómez-Ariza, Gómez-Ariza, Harris, Hayasaka, Huang, Insa, Juanola, Karpas, Luís G. Dias, Luís M. Castro, Mara E.B.C. Sousa, Martendal, Martínez-Uruñuela, Martínez-Uruñuela, Mazzoleni, Moore, Márquez-Sillero, Márquez-Sillero, Olivella, Patil, Patrícia Freitas, Peverly, Pizarro, Pizarro, Pizarro, Pizarro, Prat, Regueiro, Riboulet, Riu, Riu, Roig, Roig, Rondinini, Schmarr, Sefton, Simpson, Slabizki, Soleas, Taylor, Varelas, Vestner, Vlachos, Xu   +55 more
core   +1 more source