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US 2024/0198255 A1Published application
Method for the separation of anionic, cationic, neutral and zwitterionic arsenic species
AssigneeDionex Corporation
InventorsJohn Edward Madden, Charanjit Saini, Yan Liu
Life of this patent
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Abstract
A method comprising separating a plurality of arsenic species using a mixed mode column and a strong acid. The plurality of arsenic species includes at least one of each of an anionic arsenic species, a cationic arsenic species, a neutral arsenic species, and a zwitterionic arsenic species.
Claims30
A method comprising:
- separating a plurality of arsenic species using a mixed mode column and a strong acid, the plurality of arsenic species including at least one of each of an anionic arsenic species, a cationic arsenic species, a neutral arsenic species, and a zwitterionic arsenic species.
A method comprising:
- separating a plurality of arsenic species using a chromatography column and a strong acid having a counter ion, the counter ion including a weaker anion exchange species than NO3−.
A method comprising:
- separating a plurality of arsenic species using a chromatography column and a strong acid, the plurality of arsenic species including at least two anionic arsenic species.
Dependencies are inferred from the claim text.