摘要:
A sample collection device for a fluid sample includes: a body including a capillary channel having a first end and a second end, wherein the first end is adapted to draw the fluid into the channel by capillary action; an air vent located in the vicinity of the second end and in fluid communication with the capillary channel; a barrier positioned within the capillary channel to prevent flow of the fluid by capillary action thereacross; and features on opposing sides of the body to form an axis of rotation, which is substantially perpendicular to the overall direction of the capillary channel from the first end to the second end. In a preferred embodiment, the sample collection device is adapted to rotate about the axis of rotation within a cartridge having a sample manipulation device to bring the first end into position with the sample manipulation device.
摘要:
A sample collection device for a fluid sample includes: a body including a capillary channel having a first end and a second end, wherein the first end is adapted to draw the fluid into the channel by capillary action; an air vent located in the vicinity of the second end and in fluid communication with the capillary channel; a barrier positioned within the capillary channel to prevent flow of the fluid by capillary action thereacross; and features on opposing sides of the body to form an axis of rotation, which is substantially perpendicular to the overall direction of the capillary channel from the first end to the second end. In a preferred embodiment, the sample collection device is adapted to rotate about the axis of rotation within a cartridge having a sample manipulation device to bring the first end into position with the sample manipulation device.
摘要:
Improved dry-operative ion-selective electrodes and their use are described. The dry-operative ion-selective electrodes include an internal reference electrode comprising a water-soluble salt dispersed in a polymer binder consisting essentially of a monomer having at least one carboxyl group and a hydrophobic monomer. The polymer provides reduced brittleness, good interlayer adhesion and high salt tolerance.
摘要:
A sample collection device (10) for a fluid, such as body fluids like blood, urine or saliva, includes: a substantially disk-shaped body having a periphery; a capillary channel (11) extending through the body and bounded by the periphery, having a first end (12) and a second end (13), wherein the first end (12) is adapted to draw the fluid into the channel (11) by capillary action; a sample collection well (14) located in the vicinity of the second end (13) and in fluid communication with the capillary channel (11); and an axis of rotation extending through the center of the disk and which is substantially perpendicular to the upper surface of the disk-shaped body. In a preferred embodiment, the sample collection device is adapted to rotate about the axis of rotation within a cartridge of a fluid measuring device, such as a lateral flow assay, wherein the cartridge has a housing comprising an air vent (32) in fluid communication with the capillary channel (11) when the disk is rotated in a first position.
摘要:
A sample collection device (10) for a fluid, such as body fluids like blood, urine or saliva, includes: a substantially disk-shaped body having a periphery; a capillary channel (11) extending through the body and bounded by the periphery, having a first end (12) and a second end (13), wherein the first end (12) is adapted to draw the fluid into the channel (11) by capillary action; a sample collection well (14) located in the vicinity of the second end (13) and in fluid communication with the capillary channel (11); and an axis of rotation extending through the center of the disk and which is substantially perpendicular to the upper surface of the disk-shaped body. In a preferred embodiment, the sample collection device is adapted to rotate about the axis of rotation within a cartridge of a fluid measuring device, such as a lateral flow assay, wherein the cartridge has a housing comprising an air vent (32) in fluid communication with the capillary channel (11) when the disk is rotated in a first position.
摘要:
Improved dry-operative ion-selective electrodes and their use are described. The dry-operative ion-selective electrodes include an internal reference electrode comprising a water-soluble salt dispersed in a polymer binder consisting essentially of a monomer having at least one carboxyl group and a hydrophobic monomer. The polymer provides reduced brittleness, good interlayer adhesion and high salt tolerance.