Abstract:
Un appareil (10) utilisé pour analyser par spectroscopie les propriétés d'une pluralité d'échantillons de test comprend un organe de support (12) pour supporter de manière stationnaire une pluralité de cellules de test (14) contenant des échantillons (16) à analyser et des dispositifs appropriés pour diriger un rayon d'une radiation successivement sur les cellules de test (14) puis recevoir une radiation réfléchie par les cellules de test. Les dispositifs d'envoi (20) et de détection (30) de la radiation sont montés en relation fixe l'un par rapport à l'autre et sont agencés sur l'organe de support (12) de sorte que lorsque le rayon provenant du dispositif d'envoi (20) de la radiation est dirigé sur l'une des cellules de test (14), le détecteur de radiation (30) reçoit une radiation de sortie réfléchie par la même cellule. Les dispositifs d'envoi ou émission (20) et de détection (30) de la radiation se déplacent comme une seule unité par rapport aux cellules de test stationnaires (14) de sorte que le rayon de radiation provenant du dispositif d'envoi (20) est dirigé successivement sur les différentes cellules de test (14) pour que le dispositif de détection de radiation (30) reçoive ensuite de manière successive une radiation de sortie réfléchie par les différentes cellules de test (14). De cette manière, l'analyse des propriétés d'une pluralité d'échantillons peut être effectuée rapidement et de manière efficace. En outre, le fait que les cellules de test (14) soient supportées de manière stationnaire et que les dispositifs d'envoi (20) et de détection (30) de radiation se déplacent par rapport à celles-ci est particulièrement avantageux en analyse spectroscopique d'échantillons de test de fluide à écoulement traversant, où le fluide d'échantillon à analyser est introduit dans les cellules de test supportées de manière stationnaire et extrait des cellules de tests supportées de manière stationnaire (17a, 17b), en continu.
Abstract:
A fluorescence detection apparatus comprising: a sample holder for fixing and holding sample vessels on a circular arc; a partition plate being joined to drive means for rotation on the center of the circular arc; an excitation light source; excitation light optical means; and fluorescence optical means containing a light guide being fixed on the partition plate for rotation integrally and a photosensor. The photosensor is mechanically discontinued from the drive means and fixedly placed. The fluorescence signal emission end of the light guide is placed facing the photosensor on the rotation center axis and the partition plate and the parts fixed thereto are rotated integrally, whereby fluorescence detection of the samples arranged on the circular arc is repeated in order.
Abstract:
Reaction detection equipment comprising: a plurality of reaction sites (3); a source of light (9) including a corresponding plurality of first light paths (6) to the plurality of reaction sites; a corresponding plurality of second light paths (7) from the plurality of reaction sites; an optical commutator (11) having: a corresponding plurality of light receiving stations (16) circularly arranged about an axis (A) at the ends of the second light paths remote from the reaction sites, a rotor (12) mounted for rotation past the light receiving stations with its axis of rotation coincident with the said axis, a light path (18) on the rotor from a point (19) thereof which passes the light receiving stations to a central point; means (23) for detecting presence of light at the central point.
Abstract:
An apparatus (10) for use in spectroscopically analyzing properties of a plurality of test samples. The apparatus includes a support member (12) for stationarily supporting a plurality of test cells (14) containing test samples (16) to be analyzed and suitable devices for directing a beam of radiation successively at the test cells (14) and for then receiving output radiation from the test cells. The radiation directly (20) and detector devices (30) are mounted in fixed relationship to one another, and arranged with respect to the support member (12) so that when the beam of radiation from the radiation directing device (20) is directed onto one of the test cells (14), the radiation detector (30) will receive output radiation from the same cell. The radiation directing (20) and detector devices (30) are moved as a unit relative to the stationary test cells (14) in a manner so that the beam of radiation from the directing device (20) is directed sucessively at the plurality of test cells (14), whereby the radiation detector device (30) will then receive successively output radiation from the plrality of test cells (14). In this manner, analysis of the properties of a plurality of test samples may be quickly and efficiently made. Further, the fact that the test cells (14) are stationarily supported and the radiation directing (20) and detecting devices (30) are moved relative thereto is most advantageous in connection with spectroscopic analysis of flow through fluid test samples in which the sample fluid to be analyzed is continuously introduced into and withdrawn (17a, 17b) from the stationarily supported test cells.
Abstract:
A biological material measuring instrument is described. The biological material measuring instrument includes a rotating body and a main body. The rotating body includes one or more cartridge holders having cuvettes in which a reagent and an analyte in a sample react. The main body includes a pair of light-emitting parts and light-receiving parts to optically measure the analyte in the sample. The rotating body further includes a light-emitting optical waveguide for guiding the light of the light-emitting parts to the cuvette, and a light-receiving optical waveguide for guiding.
Abstract:
A device for the photometric examination of samples has a sample-holder apparatus for at least two sample vessels, and a measuring apparatus and a moveable apparatus. The sample-holder apparatus is designed to be stationary, and the measuring apparatus is arranged on the moveable apparatus such that it can be displaced by means of the moveable apparatus.
Abstract:
A fluorescence detection apparatus comprising: a sample holder for fixing and holding sample vessels on a circular arc; a partition plate being joined to drive means for rotation on the center of the circular arc; an excitation light source; excitation light optical means; and fluorescence optical means containing a light guide being fixed on the partition plate for rotation integrally and a photosensor. The photosensor is mechanically discontinued from the drive means and fixedly placed. The fluorescence signal emission end of the light guide is placed facing the photosensor on the rotation center axis and the partition plate and the parts fixed thereto are rotated integrally, whereby fluorescence detection of the samples arranged on the circular arc is repeated in order.
Abstract:
A device for automatically analyzing samples by a colorimetric procedure may be particularly used for blood analysis. A reaction ring bearing at its periphery an array of transparent reaction cups is stationary. An optical fiber is mounted on a rotating disk, concentric with the reaction ring and downwardly oriented with respect to the top of a cup, the optical fiber having one end at a central location where it receives light from a stationary light source and its other end opposite a bottom of a reaction cup in alignment with a measuring photomultiplier.
Abstract:
An apparatus for automatically measuring the light transmission factor of liquid test samples in which a number of transparent vats is arranged around the circumference of a stationary table over which rotates a photoelectric measuring device which successively scans each vat to determine the light transmission factor of the samples. The various samples are automatically transferred by sucking them into the measuring vats from a bank of test tubes via a bank of probes with flexible hose connections to each vat; a central control valve drains the vats after testing. Electronic timing circuits provide the control commands for the operative sequences of the device, and logic circuitry, in combination with a data storage and retrieval system, provides comparative data between reference measurements and sample measurements for each vat.