2011-12. Troubleshooting Basics, Part III: Retention Problems December 1, 2011 What causes peaks to appear where they don’t belong? LCGC 29(12) 1046-1050 (2011) John W. Dolan Tags: controlling retentoin, excessive retention, fluctuating retention, retention factor, retention is too small, retention problems, series, troubleshooting strategies, varying retention