In recent years, China has made remarkable progress in the field of science and technology. Especially in the laboratory. instrument The field of technology hotspots. Workers must first sharpen their tools. Pipettes are instruments used to quantitatively transfer liquids. They are an essential pipetting tool in the laboratory and are now widely used in biology. Chemistry and other fields.
It is reported that the pipette can be divided into manual pipette according to whether it can be manually divided, electric pipette; fixed pipette according to whether the range is adjustable, adjustable pipette; single channel according to the discharge channel, 8 channels , 12 channels, 96 workstations; can be divided into half-sterilized and sterilized according to sterilization conditions. Nowadays, with the continuous innovation of pipetting technology, hand-held and electric pipettes are more and more widely used. Can significantly improve the accuracy of pipetting, optimize the experimental process, has become a laboratory assistant.
The manipulation of liquid reagents is one of the most basic operations in scientific research applications commonly used in laboratories. Pipettes are currently the most widely used portable liquid handling instrument. They are based on the principle of pneumatic pistons. And liquid separation.
In general, the experimenter has to do hundreds of thousands of pipetting work every day. It is necessary to choose a good pipette. Objectively, the pipette is comfortable, accurate, and safe. Durability is a factor in the choice of the user's choice of equipment.
For most users, it is quite difficult to test product performance before purchase. Precision pipetting is a prerequisite for reproducible results. Choose high quality, professionally maintained and calibrated pipettes, and suitable high quality suction. The head can get the best accuracy. In order to achieve a high level of accuracy, you should choose a pipette with a small pipetting force, tip mounting force, and tip ejection force.
However, far from this, pipetting experience and laboratory management specifications also directly affect the accuracy of pipetting, so professional technicians, standardized operating procedures, and scientific laboratory operating systems cannot be ignored.
The development of quality economy is accelerating, and the development of pipette technology is endless. Recently, Li Baoqing, an associate professor of the Micro-nano Engineering Research Office of the School of Engineering Science, University of Science and Technology of China, and Pan Tingrui, a professor at the University of California, Davis, proposed and implemented a nano upgrade. Accurate liquid pipetting technology. This technology combines ordinary pipette technology with microfluidic printing technology. It can control the droplets of nanoliter volume by using microfluidic chip, and realize the nano-upgrading precision with a single droplet as the smallest unit. Liquid absorption and distribution.
It is reported that the device can be widely used in various high-precision liquid manipulation experiments. For example, the device can be directly diluted to obtain different concentrations of reagents, instead of the previous serial dilution to produce a concentration gradient, which is not only easy to operate, but also saves expensive reagents. It is important to avoid large errors in the continuous dilution process.
Throughout the market competition, the imported high-quality brands such as Ohaus, Sartorius, METTLER TOLEDO still occupy the majority of the pipette market. In order to achieve breakthrough development, domestic pipettes need to be developed in technology. Application expansion, industrialization scale development level long-term exploration.
