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LCGC North America-03-01-2001
LCGC North America
Validating a Reversed-Phase HPLC Method to Determine Residual Nonoxynol-9 on Pharmaceutical Process Equipment Using a Nonporous Silica Column
March 01, 2001
Featured Article
19
3
The authors' laboratory developed and validated an HPLC method to test for residual nonoxynol-9 on stainless steel, PTFE, and acrylic substrates.
Reproducibility and Carryover — A Case Study
March 01, 2001
3
19
3
This month's column looks at reproducibility and carryover problems associated with the development of a method used to verify analyst proficiency.
New Chromatography Columns and Accessories at the 2001 Pittsburgh Conference, Part I
March 01, 2001
Column Watch
19
3
The first of a two-part series in which Majors examines the trends in column introductions at Pittcon 2001. He describes HPLC columns and packings for reversed-, normal-, and bonded-phase; ion-exchange; ion; size-exclusion; and large- and preparative-scale chromatography. He also looks at specialty HPLC columns.
Inlets — Symptoms and Solutions
March 01, 2001
GC Connections
19
3
John Hinshaw examines inlet problems and their possible remedies.