Results 131 to 140 of about 23,900 (225)

Validation of an analytical method for determination of 13 priority polycyclic aromatic hydrocarbons in mineral water using dispersive liquid-liquid microextraction and GC-MS [PDF]

open access: yes, 2016
Dispersive liquid-liquid microextraction (DLLME) combined with gas chromatography–mass spectrometry (GC–MS) was used for the extraction and determination of 13 polycyclic aromatic hydrocarbons (PAHs) in mineral water samples.
Bayat, Mitra.   +4 more
core  

Single-drop microextraction followed by in-drop derivatization for the analysis of organic compounds by gas chromatography [PDF]

open access: yes, 2007
Microextraction has become a buzz word in the recent years in the scientific area of analytical chemistry. Over the last decade, newer miniaturised approaches to liquid extraction have emerged, resulting in solvent and sample savings and less time ...
Constantine Stalikas
core  

Recent advances in green chromatography techniques for natural product analysis

open access: yesJournal of Chromatography Open
New developments in green chromatography (GrCh) techniques have helped scientists to study natural products. These developments have done two important things.
Şeyda Yayla   +3 more
doaj   +1 more source

Investigating of the conservation problems of oil paintings on paper supports [PDF]

open access: yes
The initial results of a research project on the investigation of problems presented by a collection of oil paintings on paper supports are presented. The project focuses on the effect of the oil medium on the deterioration of cellulose, on the materials
Alexopoulou, Athena   +4 more
core  

Development of molecularly imprinted microextraction techniques [PDF]

open access: yesChinese Journal of Chromatography, 2013
Kaige ZHANG   +3 more
openaire   +1 more source

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