Microwave-assisted steam distillation with simultaneous liquid/liquid extraction of pentachlorophenol from organic wastes and soils

2003 ◽  
Vol 375 (4) ◽  
pp. 584-588 ◽  
Author(s):  
Rolf-Alexander Düring ◽  
Xiaolei Zhang ◽  
Hans E. Hummel ◽  
Janusz Czynski ◽  
Stefan Gäth
Keyword(s):  
Steam Distillation ◽  
Liquid Extraction ◽  
Organic Wastes ◽  
Microwave Assisted ◽  
Liquid Liquid Extraction

Microwave-assisted liquid–liquid extraction of psychotropic drugs from human serum

2011 ◽  
Vol 205 ◽  
pp. S209-S210
Author(s):  
R. Wietecha-Posłuszny ◽  
M. Woźniakiewicz ◽  
A. Garbacik ◽  
P. Kościelniak
Keyword(s):  
Human Serum ◽  
Psychotropic Drugs ◽  
Liquid Extraction ◽  
Microwave Assisted ◽  
Liquid Liquid Extraction

scholarly journals Simultaneous Distillation Extraction of Some Volatile Flavor Components from Pu-erh Tea Samples—Comparison with Steam Distillation-Liquid/Liquid Extraction and Soxhlet Extraction

2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
Xungang Gu ◽  
Zhengzhu Zhang ◽  
Xiaochun Wan ◽  
Jingming Ning ◽  
Chengcheng Yao ◽  
...  
Keyword(s):  
Steam Distillation ◽  
Internal Standard ◽  
Soxhlet Extraction ◽  
Liquid Extraction ◽  
Volatile Components ◽  
Liquid Liquid Extraction ◽  
Flavor Components ◽  
Volatile Flavor ◽  
Linalool Oxide ◽  
Simultaneous Distillation Extraction

A simutaneous distillation extraction (SDE) combined GC method was constructed for determination of volatile flavor components in Pu-erh tea samples. Dichloromethane and ethyl decylate was employed as organic phase in SDE and internal standard in determination, respectively. Weakly polar DB-5 column was used to separate the volatile flavor components in GC, 10 of the components were quantitatively analyzed, and further confirmed by GC-MS. The recovery covered from 66.4%–109%, and repeatability expressed as RSD was in range of 1.44%–12.6%. SDE was most suitable for the extraction of the anlytes by comparing with steam distillation-liquid/liquid extraction and Soxhlet extraction. Commercially available Pu-erh tea samples, including Pu-erh raw tea and ripe tea, were analyzed by the constructed method. the high-volatile components, such as benzyl alcohol, linalool oxide, and linalool, were greatly rich in Pu-erh raw teas, while the contents of 1,2,3-Trimethoxylbenzene and 1,2,4-Trimethoxylbenzene were much high in Pu-erh ripe teas.

High-throughput dynamic microwave-assisted extraction coupled with liquid–liquid extraction for analysis of tetrabromobisphenol A in soil

2016 ◽  
Vol 8 (45) ◽  
pp. 8015-8021
Author(s):  
Jiahui Zhao ◽  
Xu Yan ◽  
Huiyu Li ◽  
Ping Zhang ◽  
Tianyu Zhou ◽  
...  
Keyword(s):  
High Throughput ◽  
Low Cost ◽  
Liquid Extraction ◽  
Soil Samples ◽  
Tetrabromobisphenol A ◽  
Microwave Assisted Extraction ◽  
Soil P ◽  
Microwave Assisted ◽  
Liquid Liquid Extraction ◽  
Assisted Extraction

Fifteen soil samples can be treated simultaneously in 20 min with low cost and less solvent by the proposed method.

scholarly journals Effect of tree age on the yield, productivity, and chemical composition of essential oil from Cinnamomum burmannii

2019 ◽  
Vol 1 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Anugerah Fajar ◽  
◽  
Ganjar Abdillah Ammar ◽  
Muhammad Hamzah ◽  
Robert Manurung ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Tree Age ◽  
Cinnamyl Alcohol ◽  
Optimum Yield ◽  
Liquid Liquid Extraction ◽  
Cinnamomum Burmannii

One of the factors that influence the yield of cassia oil is the age of tree. Cassia bark is normally harvested at a tree age of 5 years old and continue to be harvested until 15 years of age. This study investigated the effect of tree age of Cinnamomum burmannii (5, 12 and 20 years old) on the yield, productivity and chemical composition of essential oil from leaf, branch and trunk bark. The essential oil was extracted using steam distillation and liquid-liquid extraction methods. The results showed that the optimum yield of Cinnamomum burmannii oil was obtained when the water content was in the range of 36-47%. The optimum yield of essential oils from the leaf was obtained at 1.36±0.31 wt% (5 years old) and for the branch and the trunk bark were obtained at 3.2±0.07 wt% and 2.95±0.30 wt% (both were 12 years old). Chemical composition of the essential oil was also analysed. The major components of Cinnamomum burmannii oil were determined as cinnamaldehyde (68.3%-82%), cinnamyl acetate (2.5%-16%), cinnamyl alcohol (2.25%-4.6%), and cinnamic acid (3%-8%). The productivity of essential oil was estimated at 336 kg/ha.year (5 years old), 577 kg/ha.year (12 years old) and 387 kg/ha.year (20 years old).

Sign in / Sign up

Export Citation Format

Share Document