A method and system for processing a 3D tissue sample is provided, comprising the steps of receiving a tube with an inner space and two open ends, wherein the tube is configured to retain the 3D tissue sample in the inner space, arranging the tube so that one of the two open ends of the tube is located at a fluid channel, and forcing or actively pressing a tissue processing agent through the fluid channel and into the tube so that the tissue processing agent passes through the tissue.

There is provided a urine analysis device for bed side monitoring of a patient, comprising: an inlet sized and shaped for fluid communication with a urine collecting tube that receives urine from a patient; a drip chamber through which the urine flows towards an outlet; at least one sensor that analyzes each drop of urine and estimates a respective volume of each drop; a timing element that measures a reference time for each drop; a program store storing code; and at least one processing unit coupled to the program store for implementing the stored code, the code comprising: code to calculate a urine output flow rate of the urine output flowing through the chamber according to the estimated volume of each drop of the urine and the reference time for each drop; and code to output the urine output flow rate.

Corrosion inhibitor and kinetic hydrate inhibitor formulations, and methods of using each are provided. Each formulation optionally includes a fluorophore, which can be used to fluorometrically control dosage of each formulation into an aqueous liquid utilized in a downhole application, thereby providing improved precision of dosage into aqueous liquids having relatively high turbidity, and consequently relatively high light absorbance.

A sensor for isolating, identifying, and quantifying one or more analytes in a sample is provided, the sensor having a metal substrate base and a polymer waveguide disposed on the metal substrate base, the polymer waveguide including an optical channel and a polymer disposed in the optical channel; wherein the polymer waveguide optically couples a first and a second fiber optic cable. Also provided herein are methods of using the sensor for isolating, identifying, and quantifying one or more analytes in a sample, the method including contacting the polymer waveguide with a sample, sequentially heating the sensor to a plurality of temperature thresholds, obtaining an optical output at each temperature threshold, and analyzing differences in sequentially-obtained optical outputs in order to identify and determine concentrations of individual analytes of interest in the sample.

An optical milk measuring arrangement operative during a milking operation, and including an optical measuring device for measuring optical properties of milk in a measuring region, in which at least part of the milk fed to the measuring arrangement collects. The measuring arrangement includes a main channel and a measuring channel, and these channels are in fluid communication with one another in a region of a common inlet and a common outlet, and the measuring channel has a lower flow velocity than a flow velocity in the main channel.

One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).

There is provided a urine analysis device for bed side monitoring of a patient, comprising: an inlet sized and shaped for fluid communication with a urine collecting tube that receives urine from a patient; a drip chamber through which the urine flows towards an outlet; at least one sensor that analyzes each drop of urine and estimates a respective volume of each drop; a timing element that measures a reference time for each drop; a program store storing code; and at least one processing unit coupled to the program store for implementing the stored code, the code comprising: code to calculate a urine output flow rate of the urine output flowing through the chamber according to the estimated volume of each drop of the urine and the reference time for each drop; and code to output the urine output flow rate.

A flow cell and a liquid chromatographic unit are provided. The flow cell includes a housing, a cell core, a liquid-core waveguide, an inlet connection assembly and an outlet connection assembly. The cell core is provided in the housing, and is provided with a liquid feed recess, a liquid channel and a liquid discharge recess therein. The liquid-core waveguide is provided in the liquid channel. The inlet connection assembly is provided at an end of the cell core, and includes an inlet press block, a liquid feed tube, and a light entering tube. The outlet connection assembly is arranged at another end of the cell core and is provided with a light exit hole.

A gas sensor device (100) is configured to measure a predetermined gas of interest and comprises an enclosure (101) comprising a semiconductor substrate (102) and defining a first cavity (124), an optically transmissive second closed cavity (126) and a third cavity (128). The second cavity (126) is interposed between the first and third cavities (124, 128). The first cavity (124) comprises an inlet port (130) for receiving a gas under test, an outlet port (132) for venting the gas under test. The first cavity (124) also comprises an optical source (112) and a measurement sensor (114). The second cavity (126) is configured as a gaseous filter comprising a volume of the gas of interest sealingly disposed in the second cavity (126), and the third cavity (128) comprises a reference measurement sensor (116) disposed therein.

To provide a reaction system capable of analyzing a liquid sample with high accuracy. To provide a reaction system A including: a reaction vessel 1, a flow channel 2 including a deformable unit 22 having an elastic member, a pump 3, a flow channel deformation mechanism 4, a measurement unit 5 and an analysis unit 6, wherein the measurement unit 5 includes a light source unit 52 and a light receiving unit 54, the flow channel deformation mechanism 4 includes an operation unit 42 for deforming the deformable unit 22 of the flow channel 2 such that a cross-sectional area of the deformable unit 22 is reduced, and the analysis unit 6 is electrically or physically connected to the measurement unit 5 and the flow channel deformation mechanism 4, and operates the flow channel deformation mechanism 4 based on a measurement result obtained by the measurement unit 5.