MODEL RELEASED. Cancer drug research. Female researcher using a pipette to place samples into auto-sampler vials before loading them into a liquid chromatography mass spectrometer (LCMS). The LCMS will be used to identify and measure the levels of drugs or biochemicals in the blood or other bodily fluid during research into anticancer (chemotherapy) drugs. The individual chemicals making up a sample are separated out in the chromatograph, before being identified in the mass spectrometer.