Determination of volatile components of green, black, oolong and white tea by optimized ultrasound-assisted extraction-dispersive liquid-liquid microextraction coupled with gas chromatography

Journal of Chromatography A

Volumn 1280, Issue , 2013, Pages 1-8

  Sereshti, Hassan ^a   Samadi, Soheila ^a   Jalali Heravi, Mehdi ^b  

^a UNIVERSITY OF TEHRAN   (Iran)

^b SHARIF UNIVERSITY OF TECHNOLOGY   (Iran)

Author keywords

Caffeine; Central composite design; Dispersive liquid liquid microextraction; Gas chromatography; Tea; Ultrasonic assisted extraction

Indexed keywords

CAFFEINE; CENTRAL COMPOSITE DESIGNS; DETERMINATION COEFFICIENTS; DISPERSIVE LIQUID-LIQUID MICROEXTRACTION; ENHANCEMENT FACTOR; EXTRACTION PROCESS; EXTRACTION SOLVENTS; GAS CHROMATOGRAPHY-MASS SPECTROMETRY; LIQUID-LIQUID MICROEXTRACTION; MAIN PARAMETERS; OPTIMAL CONDITIONS; PRE-CONCENTRATION; RELATIVE STANDARD DEVIATIONS; SALT CONCENTRATION; TEA; TEA PLANTS; ULTRASOUND-ASSISTED EXTRACTION; VOLATILE COMPONENTS; VOLATILE CONSTITUENTS;

GAS CHROMATOGRAPHY; METHANOL; OPTIMIZATION; ORGANIC SOLVENTS; SOLVENTS; VOLATILE ORGANIC COMPOUNDS;

SOLVENT EXTRACTION;

CAFFEINE; CHLOROFORM; METHANOL; SODIUM CHLORIDE; SOLVENT; VOLATILE AGENT;

ARTICLE; CONCENTRATION (PARAMETERS); EXTRACTION; LIQUID PHASE MICROEXTRACTION; MASS FRAGMENTOGRAPHY; PRIORITY JOURNAL; PROCESS OPTIMIZATION; QUANTITATIVE ANALYSIS; RESPONSE SURFACE METHOD; TEA; TEMPERATURE; ULTRASOUND; ULTRASOUND ASSISTED EXTRACTION; VOLUMETRY;

ANALYSIS OF VARIANCE; CAFFEINE; CHLOROFORM; GAS CHROMATOGRAPHY-MASS SPECTROMETRY; LIMIT OF DETECTION; LINEAR MODELS; LIQUID PHASE MICROEXTRACTION; METHANOL; ORGANIC CHEMICALS; REPRODUCIBILITY OF RESULTS; RESEARCH DESIGN; SONICATION; TEA;

EID: 84873523422     PISSN: 00219673     EISSN: 18733778     Source Type: Journal    
DOI: 10.1016/j.chroma.2013.01.029     Document Type: Article

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