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Sci. Pharm. 2015, 83(4), 611-622; doi:10.3797/scipharm.1503-15

Development of an Ion Chromatography Method for Analysis of Organic Anions (Fumarate, Oxalate, Succinate, and Tartrate) in Single Chromatographic Conditions

1
Analytical Research, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Bollaram road, Miyapur, Hyderabad-500049 (AP), India
2
Department of Engineering Chemistry, Andhra University, Visakhapatnam-530003, India
*
Author to whom correspondence should be addressed.
Received: 24 March 2015 / Accepted: 29 May 2015 / Published: 29 May 2015
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Abstract

A single organic counterion analysis method was developed by using an ion chromatography separation technique and conductivity detector. This allows the rapid characterization of an API to support clinical studies and to fulfil the regulatory requirements for the quantitation of fumarate, oxalate, succinate, and tartrate counterions in active pharmaceutical ingredients (quetiapine fumarate, escitalopram oxalate, sumatriptan succinate, and tolterodine tartrate). The method was developed by using the Metrohm Metrosep A Supp 1 (250 × 4.0 mm, 5.0 µm particle size) column with a mobile phase containing an isocratic mixture of solution A: 7.5 mM sodium carbonate and 2.0 mM sodium bicarbonate in Milli-Q water and solution B: acetonitrile. The flow rate was set at 1.0 mL/min and the run time was 25 minutes. The developed method was validated as per ICH guidelines, and the method parameters were chosen to ensure the spontaneous quantitation of all four anions. The method was validated for all four anions to demonstrate the applicability of this method to common anions present in various APIs.
Keywords: Ion chromatography; Anions; Validation; Fumarate; Oxalate; Succinate; Tartrate Ion chromatography; Anions; Validation; Fumarate; Oxalate; Succinate; Tartrate
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

KAVIRAJ, Y.; SRIKANTH, B.; BABU, J.M.; RAO, B.V.; DOUGLAS, S.P. Development of an Ion Chromatography Method for Analysis of Organic Anions (Fumarate, Oxalate, Succinate, and Tartrate) in Single Chromatographic Conditions. Sci. Pharm. 2015, 83, 611-622.

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