Separation behavior of U(VI) and Th(IV) on a cation exchange column using 2,6-pyridine dicarboxylic acid as a complexing agent and its application for the rapid separation and determination of U and Th by ion chromatography

2011 ◽  
Vol 34 (6) ◽  
pp. 609-616 ◽  
Author(s):  
Subbiah Jeyakumar ◽  
Vivekchandra Guruprasad Mishra ◽  
Mrinal Kanti Das ◽  
Vaibhavi Vishwajeet Raut ◽  
Ramesh Mahadev Sawant ◽  
...  
2011 ◽  
Vol 60 (11) ◽  
pp. 869-872 ◽  
Author(s):  
Toshiyuki MIYAUCHI ◽  
Hiroyuki YAMASHITA ◽  
Norihisa ISHIKAWA ◽  
Makoto TAKAHASHI ◽  
Hidehiko MORI

2003 ◽  
Vol 791 (1-2) ◽  
pp. 73-83 ◽  
Author(s):  
Maria Beatriz de la Calle Guntiñas ◽  
René Wissiack ◽  
Guy Bordin ◽  
Adela Rosa Rodrı́guez

1956 ◽  
Vol 34 (7) ◽  
pp. 921-925 ◽  
Author(s):  
J. R. McCallum

For the determination of sulphate ion in samples containing 3 to 20 mgm., it was found that the standard precipitation techniques did not give sufficiently accurate results, and were time consuming. Reference to the literature showed that with certain modifications a complexometric method proposed by Schwarzenbach etal. for samples containing 20 to 50 mgm. of sulphate was most likely to give accurate results rapidly. In this method the sample is passed through a cation exchange column and washed with distilled water into a flask. This solution is boiled and precipitated with excess standard disodium ethylenediaminetetracetate in the presence of alcohol and ammonia using phthalein purple indicator. Provided that the details of procedure described in this paper are closely adhered to, accuracy is usually within two per cent. Calcium, magnesium, and barium may also be titrated directly using the phthalein purple indicator.


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