Abstract
A robotic workstation was used for the automation of standard and sample preparation for three applications: the size-exclusion chromatographic analysis of residual toluene 2,4-diisocyanate and 4,4'-diphenylmethane diisocyanate in polyurethane adhesives; the high-performance liquid chromatographic analysis of the formaldehyde, glutaraldehyde and glyoxal content of aqueous surfactant formulations; and the high-performance liquid chromatographic analysis of the tetradecanedioic acid and methylmyristate content of a reaction matrix. Sample weighing, solvent addition, mixing, standard dilutions, filtrations and solid-phase extractions were performed automatically by the workstation. The standard and sample solutions were injected on-line via the built-in injection valves into the high-performance liquid chromatographic or size-exclusion chromatographic systems.
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