摘要:
Devices, methods and systems for making optical measurements of a fluid at elevated pressures and temperatures are disclosed. A cell is designed for the optical spectroscopic measurements of fluids or gas using light from ultra violet (UV) to far infrared wavelengths, among other wavelengths. A cell is described that is well suited for applications using very small fluid volumes, on the order of micro liters, such as microfluidic systems. Some described embodiments are suited for very high pressure and temperature environments (for example, 20kpsi or greater at 175 degree C or greater). Such conditions, for example, may be found in oilfield downhole environments. Some embodiments provide are inexpensive, and make use of replaceable lenses that are used as a pressure barrier and for collimation of the optical beam path for spectroscopic measurements.
摘要:
Disclosed is a method of detecting a plurality of analytes in a sample comprising: selecting one or more primers, labelling each primer with a different dye, and placing in a reaction vessel; adding a sample to be analysed; subjecting sample to a multiplication process,- separating the amplicons according to size; quantifiying the sizes present and determining the colour of each size; comparing the resulting quantification and colours with known data to determine the nature of the amplicons. Also disclosed is an apparatus for carrying out said method.
摘要:
Flexible pouch and flexible cartridge devices for fluid sample processing, related methods of making and using, related manufacturing systems and related instrumentation systems are described. Flexible pouches provide broad advantage in a wide variety of fields by overcoming the need for complex instrumentation, dedicated devices, and relatively high cost in conventional fluid sample devices. Flexible cartridge devices are particularly advantageous in control of fluid handling, rapid adaptation to a number of configurations by the end user, multiple uses for a single configuration, and in cost and ease of manufacture.
摘要:
An optical cell assembly for use in testing a sample of a material, the assembly comprising: a body portion defining a fluid flow channel extending in a direction along a length of the body portion and which comprises an inlet, an outlet and a chamber disposed between the inlet and the outlet, the chamber adapted to receive a sample to be tested and having a maximum width dimension in a direction transverse to a main axis of the fluid flow channel which is greater than a corresponding width of the inlet; wherein the body portion is arranged such that light from a light source can pass through the chamber in a direction along the width dimension of the chamber to test the sample in the chamber.
摘要:
Apparatus for producing thin layers of a fluid sample for analysis, has a two dimensional array of analysis chambers (45), and a branching pattern of entry channels (25) coupled to the array to enable the analysis chambers to be filled in parallel. The analysis chambers are planar with a height less than that of the entry channels so as to produce the thin layers when filled with the fluid sample. The array enables more spacers between chambers in a given area, so that variations in height of the chambers can be reduced, while still enabling fast filling of the chambers. The analysis chambers can be suitable for capillary filling by a specified fluid sample such as blood. A pattern of exit channels (35) can be coupled to the array. The entry and exit channels can form comb patterns, fingers of the comb patterns being interdigitated, and the analysis chambers being arranged between the interdigitated fingers of the comb patterns.
摘要:
A signal detection system configured for detecting a signal emitted by the contents of a reaction receptacle is also configured to apply thermal energy to a portion of the reaction receptacle to affect a reaction occurring within the reaction receptacle. More particularly, a system for detecting electromagnetic radiation emitted by the contents of a reaction receptacle includes a transmission element configured for transmitting electromagnetic radiation from the contents of the receptacle, a thermal element associated with the transmission element and configured to apply thermal energy to at least a portion of the receptacle, and a detector configured to receive electromagnetic radiation from the transmission element and to generate a signal corresponding to a characteristic of the electromagnetic radiation received by the detector.
摘要:
The present invention discloses a flow cell optical detection system comprising a light source, a flow cell and a light detector, wherein the light detector is arranged in a separate detector unit that is arranged to be releasably attached to a detector interface, the detector interface being in optical communication with the light source and comprises optical connectors for optically connecting the flow cell and the detector unit in the light path from the light source, and wherein the flow cell is an interchangeable unit arranged to be held in position by the detector unit when attached to the detector interface.
摘要:
Sistema de detección óptica para bio-ensayos de alta sensibilidad sin marcado que comprende el uso de técnicas de caracterización óptica que permiten la interrogación vertical en dominios micro y sub-micrométricos así como al menos una celda resonante o interferométrica bio-fotónica de interrogación vertical caracterizado porque además comprende, al menos: (i) un sistema óptico de medida que comprende, a su vez, y al menos una fuente de excitación, medios ópticos de detección de la señal procedente de un cabezal óptico; y un cabezal óptico; y (ii) un elemento para la integración de múltiples analitos comprendiendo, a su vez y al menos, una pluralidad de celdas bio-sensibles, una pluralidad de conexiones fluídicas conectadas con las celdas; y un sustrato sobre el que reposan tanto las celdas bio-sensibles como las conexiones fluídicas; y donde dicho cabezal óptico está configurado para analizar cada una de dichas celdas bio-sensibles y los analitos contenidos en ellas.
摘要:
Visual analysis of urine samples is carried out with the use of a slide consisting of three layers containing an enclosed viewing chamber which receives a urine sample deposited by pipette into an opening on the outer layer of the slide. From the inlet opening the sample enters an inlet chamber in the middle layer and passes through a capillary passageway into the viewing chamber where it is inspected for particles and sediments.
摘要:
A fluid separation system (10) for separating compounds of a sample fluid in a mobile phase comprises a detector (50) adapted to detect separated compounds by providing an optical stimulus signal to the sample fluid and receiving a response signal to the optical stimulus signal. The detector (50) comprises a light source (100) adapted to provide an output light beam (230) as the optical stimulus signal. The light source (100) comprises a plurality of light emitting elements (200, 200A, 200Z) each adapted to emit a light beam (210, 210A1, 210A2, 210Z1, 210Z2) having a respective wavelength,, and a diffracting element (220). The plurality of light emitting elements (200, 200A, 200Z) are arranged that emitted light beams (210, 210A1, 210A2, 210Z1, 210Z2) impinging, on the diffracting element (220) are diffracted by the diffracting element (220) to form the output light beam (230).