Determination of vanadium in a marine mollusc using a chelating ion exchange resin and neutron activation

1981 ◽  
Vol 26 (1) ◽  
pp. 224-227 ◽  
Author(s):  
Y. David LaTouche ◽  
Casey W. Bennett ◽  
Michael C. Mix
1964 ◽  
Vol 47 (2) ◽  
pp. 203-208
Author(s):  
Stanley E Katz ◽  
Joseph Spock

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.


The Analyst ◽  
1989 ◽  
Vol 114 (3) ◽  
pp. 397-399 ◽  
Author(s):  
Lucas Hernández ◽  
Jose M. Melguizo ◽  
Manuel H. Blanco ◽  
Pedro Hernández

1984 ◽  
Vol 56 (4) ◽  
pp. 761-763 ◽  
Author(s):  
Hideo. Higuchi ◽  
Masaki. Uesugi ◽  
Kaneaki. Satoh ◽  
Naoyuki. Ohashi ◽  
Masayasu. Noguchi

1964 ◽  
Vol 9 (5) ◽  
pp. 427-433 ◽  
Author(s):  
Virginia E. Davis ◽  
J.A. Huff ◽  
H. Brown

Sign in / Sign up

Export Citation Format

Share Document