scholarly journals Utilization of Dispersive Liquid-Liquid Microextraction Coupled with HPLC-UV as a Sensitive and Efficient Method for the Extraction and Determination of Oleanolic Acid and Ursolic Acid in Chinese Medicinal Herbs

2012 ◽  
Vol 03 (10) ◽  
pp. 675-682 ◽  
Author(s):  
Yaomei Hao ◽  
Xuan Chen ◽  
Shuang Hu ◽  
Xiaohong Bai ◽  
Deshuang Gu
Keyword(s):  
Ursolic Acid ◽  
Oleanolic Acid ◽  
Efficient Method ◽  
Medicinal Herbs ◽  
Chinese Medicinal Herbs ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

A sensitive and efficient method for the determination of 8 chlorophenoxy acid herbicides in crops by dispersive liquid–liquid microextraction and HPLC with fluorescence detection and identification by MS

2016 ◽  
Vol 8 (17) ◽  
pp. 3536-3544 ◽  
Author(s):  
Lijie Liu ◽  
Lian Xia ◽  
Caiyun Guo ◽  
Chuanxiang Wu ◽  
Guang Chen ◽  
...  
Keyword(s):  
Efficient Method ◽  
Sample Pretreatment ◽  
Pretreatment Method ◽  
Detection And Identification ◽  
Efficient Extraction ◽  
Chlorophenoxy Acid Herbicides ◽  
Dispersive Liquid Liquid Microextraction ◽  
Acid Herbicides ◽  
Liquid Microextraction

A simple sample pretreatment method of dispersive liquid–liquid microextraction (DLLME) was developed for fast and efficient extraction of 8 chlorophenoxy acid herbicides.

Simultaneous determination of four aliphatic amines in aquatic products by ultrasound-assisted dispersive liquid–liquid microextraction coupled with high performance capillary electrophoresis

2014 ◽  
Vol 6 (14) ◽  
pp. 5140-5146 ◽  
Author(s):  
Juan Xie ◽  
Yongxin Li ◽  
Jing Zhang ◽  
Li Zeng ◽  
Dan Lu ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Simultaneous Determination ◽  
Efficient Method ◽  
High Performance ◽  
Aquatic Products ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
High Performance Capillary Electrophoresis ◽  
Liquid Microextraction

A simple, rapid, inexpensive and efficient method based on ultrasound-assisted dispersive liquid–liquid microextraction (UDLLME) after pre-column derivatization coupled with high performance capillary electrophoresis (HPCE) has been developed for determination of methylamine (MA), ethylamine (EA), dimethylamine (DMA) and diethylamine (DEA) in aquatic products.

PAHs in toasted bread: determination using microwave-assisted extraction and dispersive liquid–liquid microextraction followed by high-performance liquid chromatography

2018 ◽  
Vol 10 (20) ◽  
pp. 2398-2404 ◽  
Author(s):  
Mansour Mahmoudpour ◽  
Zahra Pilevar ◽  
Fardin Javanmardi ◽  
Faran Taram ◽  
Mir-Michael Mousavi
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Efficient Method ◽  
High Performance ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

In the present study, a fast, simple, and efficient method for the determination of PAHs in toasted bread was developed using microwave-assisted extraction (MAE) and dispersive liquid–liquid microextraction (DLLME) followed by high-performance liquid chromatography (HPLC).

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