Needle-based extraction techniques with protected sorbent as powerful sample preparation tools to gas chromatographic analysis: trends in application

K Kędziora-Koch, W Wasiak - Journal of Chromatography A, 2018 - Elsevier
Microextraction techniques are widely applied for sample preparation to gas
chromatographic analysis of target compounds in samples with a complex matrix. Recently …

Solvent-free microextraction techniques in gas chromatography

J Laaks, MA Jochmann, TC Schmidt - Analytical and Bioanalytical …, 2012 - Springer
Microextraction techniques represent a major part of modern sample preparation in the
analysis of organic micropollutants. This article provides a short overview of recent …

A modified microwave hydrodistillation and simultaneous extraction in a rotating state to obtain essential oil, rosmarinic acid, and polysaccharides with sucrose …

X Yang, T Liu, M Wei, R Zhao, H Gu, J Li, F Chen… - Industrial Crops and …, 2022 - Elsevier
An improved approach was developed to obtain essential oil, rosmarinic acid, and
polysaccharides with sucrose stearate as a green additive from Perilla frutescens (L.) Britt …

Determination of 13 endocrine disrupting chemicals in sediments by gas chromatography–mass spectrometry using subcritical water extraction coupled with …

K Yuan, H Kang, Z Yue, L Yang, L Lin, X Wang… - Analytica chimica …, 2015 - Elsevier
In this study, a sample pretreatment method was developed for the determination of 13
endocrine disrupting chemicals (EDCs) in sediment samples based on the combination of …

Automated and quantitative headspace in-tube extraction for the accurate determination of highly volatile compounds from wines and beers

J Zapata, L Mateo-Vivaracho, R Lopez… - … of Chromatography A, 2012 - Elsevier
An automatic headspace in-tube extraction (ITEX) method for the accurate determination of
acetaldehyde, ethyl acetate, diacetyl and other volatile compounds from wine and beer has …

In-tube extraction-GC-MS as a high-capacity enrichment technique for the analysis of alcoholic beverages

J Laaks, MA Jochmann, B Schilling, K Molt… - Journal of agricultural …, 2014 - ACS Publications
An in-tube extraction (ITEX) method for the GC-MS analysis of volatile constituents of
alcoholic beverages was developed and applied in the analysis of 46 beers from six …

Microwaves for greener extraction

I de la Calle, M Costas-Rodríguez - The application of green solvents in …, 2017 - Elsevier
Microwave energy enhances and shortens the extraction of metallic and organic compounds
from environmental, food, and biological samples in research laboratories, and also pilot …

[HTML][HTML] Determination of trace amounts of Brown HT as a food dye by a CPE-scanometry method

A Shokrollahi, S Ahmadi - Journal of Taibah University for Science, 2017 - Elsevier
In this study, trace amounts of Brown HT were extracted, pre-concentrated and determined
by cloud point extraction-scanometry (CPE-scanometry) as a simple, fast and inexpensive …

Flux cored arc welding of 304L stainless steel within glycerol environment

X Zhang, N Guo, C Xu, Y Tan, H Chen… - Journal of Materials …, 2020 - Elsevier
Glycerol was chosen to simulate the petroleum environment and the welding process and
joint's properties were investigated with a research method referred to underwater wet …

Infrared-assisted non-ionic surfactant extraction as a green analytical preparatory technique for the rapid extraction and pre-concentration of picroside I and picroside …

F Li, Y Yu, H Zhang, T Liu, Y Li, G Duan - Analytical Methods, 2013 - pubs.rsc.org
The extraction of picroside I and picroside II from Picrorhiza scrophulariiflora Pennell using
non-ionic surfactants with the assistance of infrared was investigated and the conditions for …