Determination of echinacoside in rat serum by reversed-phase high-performance liquid chromatography with ultraviolet detection and its application to pharmacokinetics and bioavailability

2006 ◽  
Vol 844 (2) ◽  
pp. 308-313 ◽  
Author(s):  
Cunqin Jia ◽  
Haiming Shi ◽  
Xiangmei Wu ◽  
Yinzeng Li ◽  
Jingjing Chen ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Reversed Phase ◽  
Rat Serum ◽  
Ultraviolet Detection

Determination of sterigmatocystin in beer by high performance liquid chromatography with ultraviolet detection

2008 ◽  
Vol 1 (2) ◽  
pp. 161-166 ◽  
Author(s):  
A. Veršilovskis ◽  
S. De Saeger ◽  
V. Mikelsone
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Reversed Phase ◽  
Ultraviolet Detection ◽  
Coefficients Of Variation ◽  
Solid Phase Extraction Procedure

A new method for the determination of sterigmatocystin in beer was developed. This method consists of a solid phase extraction procedure of light and dark beer and reversed phase high performance liquid chromatography with ultraviolet detection. Recoveries of sterigmatocystin from beer samples spiked at levels from 0.5 to 100 µg/l ranged from 81 to 126% for light beer and from 88 to 126% for dark beer with coefficients of variation between 2.2 and 14%. From the total of 26 analysed Latvian beer samples only two (7.7%) were contaminated with sterigmatocystin.

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