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Summary This Application Note describes the use of BenchTOF-dx to detect drugs of abuse in urine using fast GC. The application demonstrates the high sensitivity of BenchTOF-dx, its production of ‘reference-quality’ mass spectra, as well as its ability to handle narrow peaks produced by fast GC. Of particular note is the detection of benzodiazepines, which have been historically difficult to detect by GC/MS due to their polarity |