Summary
An ultra-high pressure liquid chromatograph was interfaced to a moderately high-resolution nanoelectrospray ionization ion mobility spectrometer operating at ambient temperature and pressure to achieve fast multidimensional separations. The potential of using ion mobility spectrometry as the second dimension in a comprehensive arrangement with liquid chromatography to offer improved qualitative information for compounds under specific operating conditions, is discussed. Separation and detection of selected benzodiazepines and triazine herbicides are demonstrated. Composite peak capacities of 39 and 33 for benzodiazepine and triazine herbicide mixtures, respectively, were achieved in less than 75 s using a 16.5 cm×50 μm internal diameter fused silica capillary liquid chromatographic column packed with 1.5 μm diameter ODS-bonded silica particles.
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Collins, D.C., Xiang, Y. & Lee, M.L. Comprehensive ultra-high pressure capillary liquid chromatography/ion mobility spectrometry. Chromatographia 55, 123–128 (2002). https://doi.org/10.1007/BF02492131
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DOI: https://doi.org/10.1007/BF02492131