Ion chromatographic method for the determination of orotic acid in urine

2018 ◽  
Vol 563 ◽  
pp. 9-14 ◽  
Author(s):  
Orhan Destanoğlu ◽  
Damla Zeydanlı ◽  
Mehmet Şerif Cansever ◽  
Gülçin Gümüş Yılmaz
Keyword(s):  
Orotic Acid ◽  
Chromatographic Method

Determination of Orotic Acid by Liquid Chromatography as a Criterion for Calculating Nonfat Milk Solids in Milk Bread

1989 ◽  
Vol 72 (4) ◽  
pp. 627-631
Author(s):  
Lap V Bui
Keyword(s):  
Orotic Acid ◽  
Chromatographic Method ◽  
Colorimetric Method ◽  
Milk Powder ◽  
Skim Milk ◽  
Nonfat Milk ◽  
Liquid Chromatographic Method ◽  
Milk Solids ◽  
Liquid Chromatographic

Abstract A sensitive and reproducible isocratic liquid chromatographic method is described for the determination of orotic acid levels in skim milk powder and milk bread. The results are used to calculate the nonfat milk solids content in milk bread. Sample preparation is simple and rapid and produces an extract which, after passing through an on-line cleanup system, has a minimum adverse effect on the performance and life of the analytical column. Mean recoveries of 96-105% were obtained with coefficients of variation in the range 1.0-8.5% and a detection limit of 5 mg/kg. The liquid chromatographic method was more sensitive than the standard colorimetric method, while results obtained by both methods agreed closely.

Validated high-performance thin-layer chromatographic method for the determination of dibenzyl cyclooctadiene lignans fromSchisandra grandiflora

2014 ◽  
Vol 27 (6) ◽  
pp. 460-465 ◽  
Author(s):  
Katragunta Kumar ◽  
Bokka Ramesh ◽  
Vadaparthi Rao ◽  
Borra Poornima ◽  
Vanka Sarma ◽  
...  
Keyword(s):  
Thin Layer ◽  
High Performance ◽  
Chromatographic Method
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