Keyword: inorganic anions

Applications

Foscarnet assay calibration with XAMS suppressor and ASUREX-A200
ion chromatography

Modernized assay for foscarnet following ICH guidelines

New assay for the antiviral medication forscarnet which is a DNA polymerase inhibitor that is used to combat herpes viruses, including drug-resistant cytomegalovirus, and to treat patients with HIV as part of salvage therapy. This assay was developed by Diduco to meet the requirements in the ICH guidelines, as a contribution to the United States Pharmacopoeia initiative for modernized monograph methods.

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Pharamaceutical counterions with XAMS suppressor and ASUREX-A200
ion chromatography

Generic method for isocratic separation of fifteen common pharmaceutical counterions

Many medicines and dietary supplements are bases that carry a positive charge, and these small molecules are consequently accompanied by negatively charged counterions. Such anionic excipients may influence the properties of the pharmaceutical formulation and can also influence the effect of the active ingredient since different ion pairs can have different dissolution rates or abilities to penetrate cell walls.

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Alternative method for voriconazole impurity E
ion chromatography

Alternative method for determination of voriconazole impurity E

Voriconazole is an antifungal medication that is included on the WHO Model list of Essential Medicines. During synthesis of the active ingredient a resolving agent for chiral amines is often used, and it is thus necessary that the quality control prove that this substance is not present at harmful levels in the final product.

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Pharamaceutical counterions with XAMS suppressor and ASUREX-A200
ion chromatography

Generic method for isocratic separation of ten common pharmaceutical counterions

Many medicines and dietary supplements are bases that carry a positive charge, and these small molecules are consequently accompanied by negatively charged counterions. Such anionic excipients may influence the properties of the pharmaceutical formulation and can also influence the effect of the active ingredient since different ion pairs can have different dissolution rates or abilities to penetrate cell walls.

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Diduco is a leading provider of professional services in high performance liquid chromotography and producer of the Xenoic® XAMS chemical suppressor and ASUREX automatic regenerator for ion chromatography.

Diduco AB
Tvistevägen 48C
90736 Umeå
Sweden

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