Determination of the chemical composition of tea by chromatographic methods: a review [PDF]
, 2015 Despite the fact that mankind has been drinking tea for more than 5000 years, its chemical composition has been studied only in recent decades. These studies are primarily carried out using chromatographic methods.
Combet, Emilie +3 more
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Stir Bar Sorptive Extraction - New Approach for the Determination of Some Beer Flavours.
Kvasný průmysl, 2008 For the determination of beer flavours well-established methods require sample preparation steps such as liquid/liquid extraction, solid phase extraction or distillation techniques. During the past years the microextraction procedures become popular e. g.
Tomáš HORÁK +4 more
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Application of Dispersive Liquid-Liquid Microextraction in Forensic Toxicological Analysis [PDF]
Fayixue Zazhi, 2019 Currently, the main sample pretreatment methods for forensic toxic analysis are liquid-liquid extraction （LLE） and solid-phase extraction （SPE）. As a simple, convenient, and low-cost LLE method, dispersion liquid-liquid microextraction （DLLME） has high ...
YANG Yu, ZHANG Yun-feng, LI Xin-tong，et al.
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Determination of Trichloroethylene in Water by Liquid–Liquid Microextraction Assisted Solid Phase Microextraction [PDF]
Chromatography, 2015 A method for the determination of trichloroethylene (TCE) in water using portable gas chromatography/mass spectrometry (GC/MS) was developed. A novel sample preparation method, liquid–liquid microextraction assisted solid phase microextraction (LLME–SPME), is introduced.
Zhang, Mengliang, Harrington, Peter
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FoodsAlcoholic beverages are loved by the majority of consumers because of their diverse characteristics and rich nutritional value; thus, ensuring their quality is necessary for maintaining the rapid development of the alcoholic beverage industry.
Yue Qiu +6 more
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Journal of Saudi Chemical Society, 2014 Recently, increasing interest on the use of dispersive liquid–liquid microextraction (DLLME) developed in 2006 by Rezaee has been found in the field of separation science.
H.M. Al-Saidi, Adel A.A. Emara
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Speciation without chromatography: Part I. Determination of tributyltin in aqueous samples by chloride generation, headspace solid-phase microextraction and inductively coupled plasma time of flight mass spectrometry [PDF]
, 2001 An analytical procedure was developed for the determination of tributyltin in aqueous samples. The relatively high volatility of the organometal halide species confers suitability for their headspace sampling from the vapour phase above natural waters or
Lam, J. +4 more
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Tungsten coil atomic emission spectrometry combined with dispersive liquid–liquid microextraction: A synergistic association for chromium determination in water samples [PDF]
, 2016 A novel and environment friendly analytical method is reported for total chromium determination and chromium speciation in water samples, whereby tungsten coil atomic emission spectrometry (WCAES) is combined with in situ ionic liquid formation ...
Canals, Antonio +3 more
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Effervescence-Assisted Microextraction—One Decade of Developments
Molecules, 2020 Dispersive microextraction techniques are key in the analytical sample treatment context as they combine a favored thermodynamics and kinetics isolation of the target analytes from the sample matrix.
Guillermo Lasarte-Aragonés +2 more
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Recent Advances in Sample Preparation for Cosmetics and Personal Care Products Analysis
Molecules, 2021 The use of cosmetics and personal care products is increasing worldwide. Their high matrix complexity, together with the wide range of products currently marketed under different forms imply a challenge for their analysis, most of them requiring a sample
Maria Celeiro +3 more
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