Pipette is one of the many quality products of Shanghai Basu Industrial Co., Ltd., with many years of sales and technical experience. So what are the three methods for the rapid detection accuracy of pipettes? Let's take a look.
Case 1: We have to determine if there is a leak in the pipette.
1. Detection method:
A visual inspection: first use the pipette to be tested to draw the liquid, then let it stand vertically for 15 seconds to see if there is a slow flow of droplets. If there is a droplet flowing slowly, it means that the pipette has air leakage.
B pressure pump detection: Use a dedicated pressure pump to detect the pressure and determine if the pipette is leaking.
2. If there is a leak in the pipette, then we need to analyze the possible causes of the leak:
First, check if the tip matches? It is recommended to use original matching tips. If it is not the original matching tip, it is best to consult the manufacturer or agent (if you are buying in Shanghai Danding International Trading Co., Ltd., you can consult our technical staff) to see if the tip you are using is the same as the pipette used. match.
Secondly, is there any tightening when assembling the tip? It is very likely that the pipette leaks due to the lack of tightening when the tip is loaded.
Finally, if no problem is found in either of the above cases, it is likely that the internal airtightness of the pipette is not good. At this time, you need to contact the pipette company maintenance engineer.
Case 2: We need to check if the temperature difference between the pipetting liquid and the pipette and the tip is affected by the pipette.
In general, when the temperature of the removed liquid does not match the temperature of the tip and the pipette, the following two differences occur:
1. When the liquid temperature is higher than the tip, the volume of the removed liquid will be too large;
2. When the liquid temperature is lower than the tip, the volume of the removed liquid will be too small.
The third case: Generally speaking, the pipette calibration before leaving the factory is tested with water as a standard solution, so if the specific gravity of the liquid to be treated is very different, the accuracy and accuracy given may be It can't be satisfied, which creates an error.
After eliminating all the above problems, we should also pay attention to the liquid absorption speed is not too fast, the liquid absorption speed will produce backlash and air bubbles too fast, resulting in inaccurate pipetting volume, and ultimately affect the accuracy of the pipette.
The above is the basic information of the pipette. For more pipette information, please see:
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National toll-free hotline: 400-618-0588 or log on Nine Pakistani official website query:
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