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

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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

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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

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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

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John Hinshaw examines inlet problems and their possible remedies.