Publications by Brett A Johns

Publications by authors named "Brett A Johns"

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Determination of potato carboxypeptidase inhibitor in African Green Monkey plasma using 96-well SPE and LC-MS/MS.

Mark J Rose Carmen Fernandez-Metzler Brett A Johns Gary R Sitko Jacquelynn J Cook

J Pharm Biomed Anal

July 2005

Potato carboxypeptidase inhibitor (CPI), a peptide with multiple isoforms (MW>4000 Da) was determined from African Green Monkey plasma using a PE Sciex API-3000 LC-MS/MS in the positive ionization mode with the turbo ionspray interface (450 degrees C). Samples were prepared using an Oasis MCX 96-well solid phase extraction plate and chromatographed on an Allure C18 HPLC Column (50 mm x 1.0 mm, 5 microm) using gradient elution.

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