Some Factors Affecting the Zone Mobility of Inorganic Ions During Electromigration in Paper

Abstract

A number of factors which affect the zone mobilities of inorganic ions were investigated. The influence of temperature was that expected from its effect on the conductance in free solution. The zone mobility tends to decrease, and the zone size to increase, with increasing migrant concentration. Excess foreign ions in the initial migrant zone can have a similar result. Experiments in the presence of the swelling agent thiourea indicate that swelling has a t least a constant and perhaps a negligible influence on the obstructive factor. Finally, variation of the zone mobility with paper type was considered in relation to the ion-exchange capacity. Of the ions studied, only copper showed any correlation. Some observations were made using ion-exchange papers.

Capillary electrophoretic method for the simultaneous determination of nitrate, nitrite and bromate ions in some selected plants

“…Elution of anions such as nitrate, nitrite and bromate might vary depending on certain factors, including applied voltage, background www.soci.org ZN Tembo, SF Aygun wileyonlinelibrary.com/jsfa electrolyte properties such as viscosity and ionic strength. 22 It is therefore imperative to consider the nature of the buffer solution and its interactivity with the analytes under study. [23][24][25] In the present study, phosphate buffer at a lower pH was used as a result of its low absorption of ultra violet light at low wavelengths.…”