Abstract: A fiber optic probe (100) provides in-vitro measurement for measuring fluid media containing bubbles and particulate matter where disturbances to fluid dynamics must be kept to a minimum. The probe transmits light to, and receives light from, the measured fluid media across a light-path gap (119) using two, separate fiber support tubes (107A, 107B) to protect the transmitting and receiving fibers and provide a rigid and resilient structure. Each support tube, containing one or more fibers, is bent ninety degrees in a smooth quarter circle to produce a light path gap that is perpendicular to the longitudinal axis (113) of the probe. A cross-member (125) provides precise alignment of the optical axes or the transmitting and receiving fibers. The small-diameter support tubes reduce hydraulic flow disturbances and debris buildup which would occur with conventional probes during tablet dissolution.

Abstract: A system for providing a spectrophotometric analysis of a plurality of fluid samples, the system including a spectrophotometer having a low pressure flow cell and an automatic injector device which stores the fluid samples without exposure to the atmosphere and injects the samples successively at low pressure into the flow cell where they can be scanned to produce scanned data for processing. The system prevents the scanning of each fluid sample until the injection thereof has been completed, the processing of scanned data for each fluid sample being performed substantially simultaneously with the injection of the next successive fluid sample into the flow cell.