LCGC Europe-03-01-2004

LCGC Europe

In-Tube Solid-Phase Microextraction and On-Line Coupling with High-Resolution GC

March 01, 2004

Sample Preparation Perspectives

17

3

A novel device for coupling on-line in-tube SPME with capillary GC is presented by the guest authors and the method's application demonstrated for the analysis of contaminants in water.

IC–MS Determination of Ionic Compounds in Toothpaste

March 01, 2004

IC?MS

17

3

A fast and easy-to-use method for the identifcation and determination of active anionic ingredients in toothpaste is presented using ion chromatography in combination with electrospray mass spectrometry. In this application, positive identification of glycerol, sorbitol, chloride, fluoride, sulphate, monofluorophosphate and polyphospates, in addition to citrate and saccharin, is achieved in one chromatographic run with a total analysis time of 22 min.

Debating Resolution and Mass Accuracy

March 01, 2004

MS in Practice

17

3

In the second instalment of this newly introduced column, Michael Balogh looks at resolution and mass accuracy as important considerations for determining the suitability of a mass spectrometer for an intended purpose.

Selecting the Best Curve Fit

March 01, 2004

LC Troubleshooting

17

3

In this month's column, the authors present a relatively simple method for selecting the appropriate curve-fitting function and thus ensure that the requirements of current guidelines can be met.