Flow injection spectrophotometric determination of uranium with in-valve ion-exchange column preconcentration and separation

The Analyst ◽  
1995 ◽  
Vol 120 (8) ◽  
pp. 2107 ◽  
Author(s):  
Kate Grudpan ◽  
Saisunee Laiwraungrath ◽  
Ponlayuth Sooksamiti
Keyword(s):  
Ion Exchange ◽  
Spectrophotometric Determination ◽  
Flow Injection ◽  
Exchange Column ◽  
Ion Exchange Column ◽  
Column Preconcentration

Fluorometric Determination of Chlortetracycline in Low Level Mixed Feeds

1964 ◽  
Vol 47 (6) ◽  
pp. 1157-1161
Author(s):  
Stanley E Katz ◽  
Joseph Spock
Keyword(s):  
Ion Exchange ◽  
Sodium Carbonate ◽  
Fluorometric Determination ◽  
Aqueous Sodium ◽  
Exchange Column ◽  
Aqueous Sodium Carbonate ◽  
Ion Exchange Column ◽  
Low Levels ◽  
Mixed Feeds

Abstract The fluorometric determination of low levels of chlortetracycline in mixed feeds is based upon the separation of the chlortetracycline on a Decalso ion exchange column after extraction from the feed. The chlortetracycline is eluted from the resin after conversion to isochlortetracycline by hot aqueous sodium carbonate. The isochlortetracycline is measured fluorometrically. Results agree with microbial assays.

A Single Column Method for the Determination of Urinary δ-Aminolevulinic Acid

1969 ◽  
Vol 15 (3) ◽  
pp. 183-189 ◽  
Author(s):  
Mu-Wan Sun ◽  
Edward Stein ◽  
Frances W Gruen
Keyword(s):  
Ion Exchange ◽  
Lead Poisoning ◽  
Aminolevulinic Acid ◽  
Simple Method ◽  
Exchange Column ◽  
Column Method ◽  
Single Column ◽  
Ion Exchange Column

Abstract A simple method for determination of urinary δ-aminolevulinic acid is described. Its advantage over procedures now in use is in the utilization of a single ion-exchange column instead of two ion-exchange columns, with resulting saving of time, labor, and material. The method is accurate and useful in screening for lead poisoning.

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