Application of laboratory balance in pipette calibration

Pipettes are standard inspection, measurement and metering devices. Operators in the laboratory use pipettes for a large amount of pipetting every day, and the pipettes are deformed by long-term use of the springs, causing errors. Both GLP and European standards require that pipettes be regularly tested and that quick inspections are required in addition to periodic inspections. Pipette calibration is expensive and time consuming, and requires a high level of equipment and environment, but a pipette calibration solution centered on the balance application can help you with your work. Let's take a look at the laboratory balance in pipetting. Application in calibration.

The basic principle of calibration using a more common piston pipette is to weigh the liquid inhaled by the pipette on the balance and calculate the volume based on the weight and density of the liquid, compared to the metered capacity of the pipette. The standard for pipette calibration is usually ISO 8655 and JJG-646-2006 pipette assay procedures.

ISO8655 specifies the instruments, test procedures, test environments, results, and calibration reports used for pipette calibration. For fast, accurate and convenient pipette calibration, step-by-step procedures can be performed according to the pipette calibration procedure included in the Sartorius Cubis Balance Q-App. Usually pipette calibration is performed: performance test, basic calibration, Strengthen the calibration, typical test, certification and calibration five steps. After the operation, the Pipette Tracker product software combination can provide calibration reports in accordance with ISO 8655, ISO 17025, GLP requirements. In the hardware of pipette calibration, it is necessary to select balances with different precision according to different range pipettes, and to use the evaporative gas valve as a balance fitting to avoid liquid volatilization, it is necessary to pay attention to the balance for pipette calibration. E2 grade weights must be calibrated daily. In addition, the Sartorius climate workstation is also well used due to the high environmental requirements of pipette calibration.

There are still many users who use multi-channel pipettes but the calibration of multi-channel pipettes is very difficult, because each channel is calibrated for about 4 hours of simultaneous temperature treatment, cleaning, lubrication of the piston, Three points of correction, multi-channel users have to repeat the above process 8-12 times, the work efficiency is very low. If 12 weighing modules are combined and a balance that can simultaneously weigh 12 channels of sample is developed, the working efficiency can be increased by 8-12 times, and the pipette calibration balance SpeedCal is operated under this demand. The measurement of 30 12-channel pipettes in 3 minutes can greatly solve the troubles of such users.

Does your work also have applications that use the weighing principle for calibration or inspection? Have you developed a special weighing container because of the special sample? Have you ever done any expansion to make your balance work with high throughput? You are welcome to participate in the "weighing endless, creative no limit - laboratory balance application case prize collection contest" Do not ignore your even small applications, perhaps it can change the experimental life of thousands of people!

Participate in the balance application case with prize collection activities