The kits for use with the Seamaty SD1 dry chemistry analyzer are packaged separately. The kit comes with its own diluent, no need to add it manually. The kits are lyophilized reagents, refrigerated at 2~8°C, and are valid for up to 1 year.
Some people may wonder how this small kit works. It can replace large biochemical machines. It also ensures the accuracy of the results.
Here is how the fluid in the test dish works.
Step 1.
After adding approximately 100 ul of sample from the spiking well, the test disc is placed into the instrument's telescoping bin. The telescoping bin transports the tray to the working position. biochemistry machine lifting device (top bar) holds the tray in place while the integrated dilution cup in the tray is pushed upwards and tears a small opening for the fluid to spill out (topping off the cup).
Step 2 (0-140s).
The biochemistry machine's built-in motor drives the test disc at high speed. Under the action of centrifugal force, the sample and diluent move towards the periphery away from the center of the test disc (built-in centrifugation).
After a period of high-speed operation, the sample, on the one hand, is separated by centrifugal force into a plasma with a constant volume against the center of the circle. Against the periphery are the blood cells (sample centrifugation stratification for quantification).
On the other hand, a certain volume of diluent is retained in the circular cavity. The rest enters the quality control chamber for comparable color assays and the excess diluent collection chamber.
Step 3 (140-210s).
Under the alternating action of the siphoning force of the capillary and the centrifugal force, the sample and diluent after the fixed volume enter the mixing chamber. The biochemistry machine uses alternating acceleration and deceleration movements to mix the sample and diluent homogeneously.
Step 4 (210-432s).
The diluted sample is distributed into the colorimetric chamber with different biochemical reagent items under the combined action of siphoning and centrifugal force.
Step 5 (432-672s).
The colorimetric reaction starts in each colorimetric chamber. biochemistry machine detects the sample concentration of each biochemical item by the colorimetric principle.
The SD1 dry chemistry analyzer uses constant light source detection technology. The biochemistry machine replaces the traditional xenon lamp used in biochemistry with a halogen lamp. This will make the size of the instrument smaller. And the intensity of the light source varies less than 1%, which is better than the traditional biochemical light source performance. In addition, the biochemistry machine has a built-in centrifuge. Based on Lambert's law, it is more accurate than conventional biochemistry by combining microfluidics with spectrophotometry.
