Ion anion exchange

As ion-exchanger anion A is strongly hydrophobic and determinand J is hydrophilic, it must hold for the individual Gibbs energies of transfer for the t vo ions that... 

Cellulose ion exchangers Anion exchange Amino acids, peptides, enzymes, nucleic acids constituents (nucleotides, nucleosides) etc. 

The use of HPLC coupled to an element-specific detector for speciation analysis has been reviewed, as have the HPLC methods for some specific elemental species. " A representative selection of speciation methods based on HPLC separation is given in Table 6. The main separation modes used are ion exchange (anion and cation) and... 

Diethyl peroxy-dicarbonate, Diisopropyl -Ion exchangers. Anion-, Cation-... 

Ion exchange (anion and cation) - removes ionic contaminants... 

Konig and Waldorf discuss analysis of hair and body shampoos (32). The shampoo is first evaporated to dryness and extracted with isopropanol or 95% ethanol to separate the surfactant, which is qualitatively identified by IR. The alcohol-insoluble residue is also examined by IR in case a less-soluble surfactant remains there. The alcohol extract is then separated into anionic, cationic, nonionic, and amphoteric surfactant fractions by ion exchange. Anionics can be separated into sulfonates and carboxylates by use of strongly basic anion exchange resins in the Cl" and OH" form, respectively. Anionics are further characterized by TLC. Nonionics are likewise characterized by TLC. Once the components are identified, quantitative analysis is by the usual methods, described elsewhere in this volume. 

N-Methylmorpholine oxide peroxide tert-Butyl perbenzoate Acyl peroxides Acetyl-, Benzoyl peroxide Diethyl peroxy-dicarbo-nate. Diisopropyl -Ion exchangers. Anion-, Cation-... 

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