Effect of pH on LC-MS Analysis of Amines

Oasis sample preparation Application Notebook Waters Oasis Family of sample extraction products The Oasis® family of sample extraction products is designed to acidic compounds, respectively. In 2004, we introduced mixed-mode simplify and improve your sample preparation by combining the right…

Oasis® Sample Extraction Products for Agrochemical and Environmental Analysis Superior results, simplicity and speed — whether analyzing water samples, soil, or food extracts. Current Oasis® Patents: Patent No. 5,882,521 (1996), Patent No. 5,976,376 (1998) Patent No. 6,106,721 (1999), Patent No.…

Waters Alliance LC/MS System The Use of 6-Aminoquinolyl-N-Hydroxy Succinimidyl Carbamate Derivatives for HPLC/MS Analysis of Amino Acids Eric H. Block, Waters Corporation, Milford, MA Key Words AccQ•Tag reagent Amino acid analysis Cone voltage Electrospray Ionization, ESI Linearity Positive and negative…

HPLC TN-1031 Improved Results for LC/MS of Basic Compounds Using High pH Mobile Phase on a Gemini® C18 Column Liming Peng, Ismail Rustamov, Lawrence Loo and Tivadar Farkas Phenomenex Inc., Torrance, CA, USA Introduction There is considerable interest in conducting…