A Novel Benzimidazole-Based Chemosensor for Fluorometric Determination of Zinc Ions

2021 ◽  
Author(s):  
Ersin Orhan ◽  
Ece Ergun ◽  
Koray Şarkaya ◽  
Ümit Ergun
Keyword(s):  
Zinc Ions ◽  
Fluorometric Determination

Fluorometric determination of ascorbic acid in the absence of the oxidant in juices of common citrus

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
A Copra-Janicijevic ◽  
E Sofic ◽  
L Klepo ◽  
A Topcagic ◽  
I Tahirovic ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Fluorometric Determination

Fluorometric Determination of Chlortetracycline in Mixed Feeds

1964 ◽  
Vol 47 (2) ◽  
pp. 203-208
Author(s):  
Stanley E Katz ◽  
Joseph Spock
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Ammonium Hydroxide ◽  
Solvent System ◽  
Ion Exchange Resin ◽  
Alkaline Degradation ◽  
Fluorometric Determination ◽  
Mixed Feeds ◽  
Microbiological Assays

Abstract The fluorometric procedure for chlortetracycline in mixed feeds is based upon the degradation of chlortetracycline in alkaline solution to isochlortetracycline. The fluorescence of the isochlortetracycline is directly proportional to the concentration of chlortetracycline present prior to alkaline degradation. Chlortetracycline is extracted from mixed feeds with an acidmethanol solvent system, separated from the feed extract by adsorption on a Dowex 50 ion exchange resin, and eluted from the resin by ammonium hydroxide after conversion to isochlortetracycline. The isochlortetracycline is measured fluorometrically. Recoveries from known feeds are generally greater than 90% and agreements with microbiological assays are very close.

Fluorometric Determination of Thiazole-Containing Compounds

1980 ◽  
Vol 69 (3) ◽  
pp. 275-279 ◽  
Author(s):  
J.-S.K. Shim ◽  
J.W. Tolan ◽  
D.W. Fink
Keyword(s):  
Fluorometric Determination
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