September 1999 | LCGC North America

September 02, 1999

To accommodate high-throughput analysis, analysts are using 96-well plates, as well as some unfamiliar accessory products. This column describes these products and tells readers how to use them in their laboratories.

September 01, 1999

A simple modification of the standard HPLC autosampler flow path enables automated sampling and analysis of samples outside the autosampler unit when users cannot place the sample container inside because of size restrictions.

September 01, 1999

Peak shape problems don't always have a single solution.

September 01, 1999

This month's "CE Currents" continues an examination of problems that users may find in routine CE work. Readers can avoid these problems by adopting the working practices suggested by the authors.

September 01, 1999

This month's column describes the ICH, its structure, member bodies, and operating procedures. Editors Krull and Swartz also give readers an update on ICH projects and guidelines.

September 01, 1999

The authors developed an ion chromatography method to separate 31 cations in a single chromatographic run using inductively coupled plasma–mass spectrometry, liquid scintillation counting, and gamma counting. The high-level radioactive waste samples contained trace radionuclides in concentrations of only a few hundred disintegrations-per-minute-per-milliliter.

September 01, 1999

With the goal of developing an analytical method for the fast analysis of vitamins in a complex matrix, the authors created a method that used in-line and complementary HPLC with photodiode-array and MS detection techniques.