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Automation of toxicological screenings on a Hewlett Packard Chemstation GC-MS system
1Department of Clinical Chemistry, Academisch Ziekenhuis Vrije Universiteit Brussel, Belgium.
Objectives:
To optimize the interpretation of GC-MS toxicological screenings (i.e., to facilitate ion specific queries, create custom reports specifically adapted to each confirmation procedure, and eliminate redundant and/or inaccurate data on library search reports).
Design And Methods:
The MS Chemstation software of the Hewlett Packard 5972 is constructed in a modular way. We made extensive modifications to two modules, the data analysis and the report modules, using the built-in MS Chemstation macro language.
Results:
Ion specific queries were automated for over 60 commonly encountered analytes. Custom reports were created for the confirmation of positive drugs-of-abuse immunoassay results. With the incorporation of decision support rules into the data processing and the reporting phases, we obtained sensitive, accurate, and concise reports.
Conclusions:
The MS Chemstation software can be tailored to the needs of each individual application. The incorporation of a rule-based decision support system enhances the quality of the GC-MS toxicological screenings and results in faster, easier, and more reliable processing.
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