CHEMICAL TEST APPARATUS

摘要

There is disclosed an apparatus (100) for testing the solubility of a chemical dissolved in a solvent (211). Particles (210) of undissolved chemical may be stirred in the solvent (211) to ensure that the solvent (211) is saturated with dissolved chemical. Samples of the solvent (211) are taken off for analysis, for example by a high performance liquid chromatography (HPLC) analyser (150). Samples may be taken at different temperatures to determine the solubility profile of the chemical in the solvent (211). The apparatus (100) includes a filter (430) to prevent particles of undissolved chemical (210) forming part of the samples. The filter (430) may be provided with a recess (832) to reduce a "dead volume" of the filter. A computer (600) may be arranged to determine if a sample contains too much or too little chemical for analysis by the HPLC (150); samples may be diluted in an analytical vial (141) to ensure that the HPLC (150) is not saturated by excess chemical.