High-performance liquid chromatography method with radiochemical detection for measurement of nitric oxide synthase, arginase and arginine decarboxylase activities

2006 ◽  
Vol 28 (1) ◽  
pp. 3 ◽  
Author(s):  
A. Volke ◽  
G. Wegener ◽  
E. Vasar ◽  
V. Volke
Keyword(s):  
Nitric Oxide ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Nitric Oxide Synthase ◽  
High Performance ◽  
Arginine Decarboxylase ◽  
Chromatography Method ◽  
Liquid Chromatography Method ◽  
Oxide Synthase

scholarly journals HPLC Quantification of Cytotoxic Compounds fromAspergillus niger

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Paula Karina S. Uchoa ◽  
Leandro Bezerra de Lima ◽  
Antonia T. A. Pimenta ◽  
Maria da Conceição F. de Oliveira ◽  
Jair Mafezoli ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Standard Deviation ◽  
High Performance ◽  
Chromatography Method ◽  
Relative Standard ◽  
Validation Parameters ◽  
Cytotoxic Compounds ◽  
Liquid Chromatography Method ◽  
Marine Strain

A high-performance liquid chromatography method was developed and validated for the quantification of the cytotoxic compounds produced by a marine strain ofAspergillus niger. The fungus was grown in malt peptone dextrose (MPD), potato dextrose yeast (PDY), and mannitol peptone yeast (MnPY) media during 7, 14, 21, and 28 days, and the natural products were identified by standard compounds. The validation parameters obtained were selectivity, linearity (coefficient of correlation > 0.99), precision (relative standard deviation below 5%), and accuracy (recovery > 96).

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