Helen Yan

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Helen Yan is senior associate scientist at Amgen Inc., One Amgen Center Dr., Thousand Oaks, CA 91320.

Articles

Quantitation of Mutagenic Impurities in APIs Using a Platform Chip-Based CE–MS Method

Quantitation of Mutagenic Impurities in APIs Using a Platform Chip-Based CE–MS Method

J. Scott Mellors;Helen Yan;Burton Lee;Jiemin Bao;Tawnya Flick;Laura E. Blue

August 2nd 2019

The ZipChip CE-ESI interface was evaluated for suitability as a platform approach for quantitation of MIs in API.

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