1. The reliability of the instrument and the reliability of the washing effect

One is the reliability of the instrument itself, ensuring that the instrument can display and move normally during its service life, which can be achieved by examining the technical and production capabilities of the instrument manufacturer; The second is the reliability of the washing effect, that is, to truly achieve the goal of replacing manual washing, or even better than manual washing, which requires consultation with the higher-level units or typical users who use the instrument.

2. Are the accessories sufficient

Can the manufacturer provide commonly used and vulnerable accessories, such as cleaning hair, one spare for each of the 8 and 12 channels, and regularly eliminate them, such as washing bottles and silicone tubes, which should be easily available for purchase.

3. Is it compatible and scalable with domestically produced reagent kits

Compatibility mainly refers to the compatibility of microporous plates with slight differences in specifications and sizes in China. The instrument should have the function of adjusting the position of the microporous plate to adapt to the actual situation of domestic reagents; Scalability is mainly to adapt to new application situations, such as the 86 type microporous plate newly added by Shanghai Kehua, which many washing machines cannot clean.

4. Key indicator: Residual amount:<2uL

Can you provide selectable washing environments for the board washing machine? The basic parameters of the washing machine include washing frequency, number of boards, soaking time, etc., which can generally be met. It is recommended to choose an instrument with functions such as bottom flushing and two-point liquid suction. Bottom flushing is beneficial for reducing the interference adsorption at the bottom of the microporous plate; Two point liquid absorption can greatly reduce the residual amount of microporous liquid. This is very effective in improving the washing effect. The minimal residual amount is very important for PCR ELISA, as it is not allowed to plate during PCR ELISA manipulation to prevent contamination.

5. Whether the after-sales service is timely and the price is fair

Washing machine is an instrument with a relatively high usage rate. From the perspective of movement alone, its frequency is dozens of times that of enzyme-linked immunosorbent assay (ELISA). Some hospitals scrap it after two years of use due to the lack of after-sales service or high after-sales service prices. Some machines are scrapped due to the lack of a single accessory, which is a pity. Therefore, timely after-sales service and relatively fair service prices are factors that should be considered when purchasing washing machine. From the perspective of ensuring the effectiveness of the washing machine, it is recommended that users regularly maintain the washing machine according to their usage, rather than passively waiting for the instrument to malfunction before repairing it. This work can be completed by the manufacturer or with the assistance of relevant personnel.