Use of the Ion Exchange Method for Determination of Stability Constants of Uranyl Ions with Three Soil Fulvic Acids

1996 ◽  
Vol 72 (1) ◽  
Author(s):  
Tao Zuyi ◽  
Du Jinzhou ◽  
Li Jun
Keyword(s):  
Ion Exchange ◽  
Stability Constants ◽  
Fulvic Acids ◽  
Uranyl Ions ◽  
Exchange Method ◽  
Ion Exchange Method

Ion Exchange Method for Rapid Determination of Alkalinity of Water-Soluble Tea Ash Containing High Levels of Manganese

1980 ◽  
Vol 63 (3) ◽  
pp. 460-461
Author(s):  
Saidul Z Qureshi ◽  
Fadhil M Najib ◽  
Fahmi A Mohammed
Keyword(s):  
Ion Exchange ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Rapid Determination ◽  
Cation Exchange Resin ◽  
Water Soluble ◽  
Exchange Method ◽  
Strong Cation Exchange ◽  
Ion Exchange Method

Abstract An ion exchange method to determine the alkalinity of water-soluble tea ash containing high levels of manganese is described. A chromatographic column containing a strong cation exchange resin (20–50 mesh) in Na+ form, with a bed volume of 5 mL is used. The present ion exchange method is compared to pH titrations and also to the official AOAC methods (31.012, 31.015, 31.016). Results with the new method are accurate and precise.

Collaborative Study of a Zincon Ion Exchange Method for the Quantitative Determination of Zinc in Fertilizers

1971 ◽  
Vol 54 (4) ◽  
pp. 790-795
Author(s):  
C E Jones ◽  
L E Pracht
Keyword(s):  
Ion Exchange ◽  
Quantitative Determination ◽  
Atomic Absorption ◽  
Reference Data ◽  
Collaborative Study ◽  
Present Form ◽  
Exchange Method ◽  
Ion Exchange Method ◽  
Absorption Measurements

Abstract This collaborative study represents an attempt to validate the ion exchange zincon method for the quantitative determination of zinc in fertilizers. The values of the standard deviations Sd, Sr, and Sb and the results of the F- and t-tests are presented as an estimate of the precision, accuracy, and dependability. Atomic absorption measurements were also made and provided reference data for evaluation purposes. In its present form, the method falls short of expectations as an alternative wet approach to the dithizone method. It is recommended that the methods for determining zinc in fertilizers be studied further.

Determination of ammonia in blood plasma by an ion exchange method

1972 ◽  
Vol 42 (1) ◽  
pp. 141-146 ◽  
Author(s):  
Kengo Kurahasi ◽  
Akiko Ishihara ◽  
Hideo Uehara
Keyword(s):  
Ion Exchange ◽  
Blood Plasma ◽  
Exchange Method ◽  
Ion Exchange Method ◽  
In Blood Plasma
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