An high-performance liquid chromatography (hplc) automatic analyser for treating and purifying samples and determining the substances contained therein

This invention concerns a high-performance liquid chromatography (HPLC) automatic analyser for treating and purifying samples and determining the substances contained therein, comprising a sampling and pre-treatment unit (1), made up of at least one dilutor (5), one sampler (7), one six-port injection valve (8) and one sample-holder plate (33); a purifying and enrichment unit (2), comprising a six-way low-pressure valve (17) , three six-way high-pressure valves (14, 15, 16), a high-pressure pump (18) and at least one purification column (19, 20); a chromatographic detector unit (3), comprising a system forming a mobile analytical phase (32), an analytical column (21) and a detector (26); and a control, acquisition, storage and data processing unit (4) comprising a computer (29), a printer (30) a mass memory (35) and a warning buzzer and/or light (31).