ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The ion-chromatographic separation of organophosphonic acids is investigated systematically in a comparative study of two anion-exchange resins (Dionex HPIC AS7, Biotronik BT I AN). For thirteen structurally diverse phosphonic acids, chromatographic properties are determined with HNO3 eluents (5–30 mmol/l), and compared with those of classical complexones and inorganic anions, e.g. phosphonate (phosphite) and phosphate. While all anions tested may be determined, in principle, both qualitatively and quantitatively (down to a 10 ppm scale) on the two materials, the Dionex column exhibits the far higher separation potential and can be applied to almost any analytical problem in the phosphonic acid field. A systematic optimization of the separation conditions for the Dionex HPIC AS7 (a detailed prescription is given) makes qualitative and quantitative analyses possible which hitherto could not be performed with this material.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00474019
