Rapid Trichloroacetic Acid Extraction and Liquid Chromatography Method for Determination of Nicotinamide in Commercial Cereals

2005 ◽  
Vol 82 (3) ◽  
pp. 277-281 ◽  
Author(s):  
Denis E. LaCroix ◽  
Wayne R. Wolf ◽  
Albert L. Kwansa
Keyword(s):  
Liquid Chromatography ◽  
Trichloroacetic Acid ◽  
Acid Extraction ◽  
Chromatography Method ◽  
Liquid Chromatography Method

Simple and rapid liquid chromatography method for determination of efavirenz in plasma

2006 ◽  
Vol 835 (1-2) ◽  
pp. 131-135 ◽  
Author(s):  
Geetha Ramachandran ◽  
A.K. Hemanth Kumar ◽  
Soumya Swaminathan ◽  
P. Venkatesan ◽  
V. Kumaraswami ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Chromatography Method ◽  
Liquid Chromatography Method

Reversed-phase high performance liquid chromatography method for the determination of paraquat in whole blood

2014 ◽  
Vol 6 (16) ◽  
pp. 6560-6564 ◽  
Author(s):  
Wuxiang Zhang ◽  
Yicong Su ◽  
Jiangu Shi ◽  
Maosheng Zhang ◽  
Bide Wu ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Whole Blood ◽  
High Performance ◽  
Reversed Phase ◽  
Chromatography Method ◽  
Liquid Chromatography Method

In this paper, a high performance liquid chromatography technique is established for quantification of paraquat in blood.

scholarly journals Oxytetracycline Residues in Honey Analyzed by Liquid Chromatography with UV Detection

2013 ◽  
Vol 57 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Anna Gajda ◽  
Andrzej Posyniak ◽  
Andrzej Bober ◽  
Tomasz Błądek ◽  
Jan Żmudzki
Keyword(s):  
Liquid Chromatography ◽  
Oxalic Acid ◽  
Limit Of Detection ◽  
Solid Phase ◽  
Experimental Treatment ◽  
Uv Detection ◽  
Limit Of Quantification ◽  
Chromatography Method ◽  
Liquid Chromatography Method

Summary A liquid chromatography method with UV detection for determination of oxytetracycline (OTC) in honey has been developed. The samples were extracted with the solution of oxalic acid. The clean-up procedure was performed by solid phase extraction (SPE) using polymeric Strata X and carboxylic acid cartridges. Chromatographic separation was carried out on the Luna C8 analytical column with mobile phase consisting of acetonitrile-0.02 M oxalic acid. The method has been successfully validated according to the requirements of the European Decision 2002/657/EC and this method is used in routine control of oxytetracycline in honey samples. The limit of detection (LOD) and limit of quantification (LOQ) of the presented method were 10 and 12.5 μg/kg, respectively. The developed method has also been verified in quantitative determination of oxytetracycline residues in honey after experimental treatment with this product in bee colonies.

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