Nanobead cation exchanger

Arogenic acid is not stable at acidic pH. Thus, it cannot be analyzed by cation-exchange chromatography. However, on a nanobead-agglomerated anion exchanger with alkaline eluents, the separation of this compound from the amino acids phenylalanine and tyrosine is accomplished without any problem. 

Corporation, are called nanobead-agglomerated cation exchangers. Their structure is schematically depicted in Figure 4.36. However, separator columns such as lonPac CSS and Fast-Sep Cation, which were manufactured using to this methodology, are no longer available. 

Figure 4.36 Schematic representation of a nanobead-agglomerated cation-exchange particle.

The structural and technical properties of the two nanobead-agglomerated cation exchangers are summarized in Table 4.4. 

Table 4.4 Structural and technical properties of nanobead-agglomerated cation exchangers.

Alternatively, uranyl cations can also be separated on a nanobead-agglomerated cation exchanger utilizing a buffer mixture of ammonium sulfete and sulfuric acid as an eluent Detection is performed as it is for transition metals, via derivatization with PAR. 

Figure 4.71 Separation of aluminum on a nanobead-agglomerated cation exchanger. Separator column lonPac CS3 eluent ...

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