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The 50mL individually sealed sterile serological pipette is a mainstream medium-large volume liquid handling consumable for life science laboratories, biotech enterprises, pharmaceutical R&D departments and microbial testing institutions. Positioned between conventional 25mL small-volume pipettes and 100mL ultra-large-volume pipettes, this 50ml specification achieves a balance of flexible operation and large-scale liquid transfer capacity, which fills the demand gap for medium-volume liquid preparation in cell factories, bioreactor sampling, and industrial microbial fermentation experiments.
Lab operators can clearly observe the liquid level height and residual liquid inside the tube during suction and discharge, effectively avoiding volume errors caused by invisible liquid column. The whole tube body is printed with clear black graduation lines at 1mL intervals, using solvent-resistant printing ink that will not fade or blur after long-term contact with cell culture medium, PBS buffer solution, ethanol and weak acid reagents, ensuring long-term reading accuracy for repeated batch experiments. A blue circular ring is set at the top connector, which is the international unified color recognition standard for 50mL serological pipettes; technicians can quickly distinguish it from 10mL orange-coded, 25mL red-coded and 100mL yellow-coded pipettes to prevent wrong selection in busy laboratory work.
Each pipette is independently packaged in breathable sterile peel pouch, with production batch number, expiry date, sterile mark and non-pyrogenic logo printed on the outer package for complete quality traceability. All finished products are sterilized by EO gas in Class 100,000 dust-free workshops, and each batch will pass sterility inspection and endotoxin testing before delivery, reaching cell culture-level aseptic standards. It adopts international standard blow-out calibration design: the tiny liquid retained at the tapered tip must be manually blown out by the pipette controller to reach the accurate 50mL nominal volume, which conforms to global laboratory quantitative pipetting operation specifications.
Rated Capacity | 50 mL |
Graduation Division | 1 mL per scale |
Pyrogen Standard | Non-pyrogenic |
Identification Mark | Blue top ring color coding |
Using Mode | Single use only, disposable |
Packaging | Individual peelable sterile pouch |
Tube Characteristic | High transparency, wear-resistant printed scale |
First, stable aseptic performance for high-standard experiments. Independent sealed packaging effectively avoids secondary contamination during transportation, storage and repeated access; non-pyrogenic and non-cytotoxic properties will not interfere with cell viability in mammalian cell passage, transfection and large-scale expansion culture.
Second, moderate volume with high measurement precision. The 1mL fine graduation ensures accurate quantification when preparing tens of milliliters of mixed reagents, greatly reducing systematic errors in biochemical testing and microbial inoculation.
Third, superior chemical resistance of raw materials. Medical PS material has inert reaction characteristics with most conventional laboratory aqueous reagents, no dissolution or precipitation of harmful substances, protecting experimental samples from pollution.
Fourth, ergonomic structural and packaging design. The tearable single sterile bag can be opened without sharp tools, complying with GMP clean workshop operation norms; smooth tapered tip can go deep into roller bottles, cell factories, medium storage barrels and narrow-mouth sampling ports to complete stable liquid transfer without splashing.
Fifth, strong universal compatibility. It can be directly matched with most mainstream manual pipette fillers and electric pipette pumps on the market without additional adapters, with smooth suction and liquid discharge and stable sealing performance.
This 50mL sterile serological pipette is widely applied in multiple professional fields: medium replacement and nutrient supplementation for large-scale cell culture in biotechnology companies, quantitative subpackaging of biological stock solution in pharmaceutical laboratories, supernatant collection of bioreactors after fermentation, bacterial suspension transfer and culture medium distribution in microbiology laboratories, preparation of standard solutions for university life science teaching experiments, bulk serum sample splitting for clinical testing institutions, raw material blending for cosmetic R&D labs, and pretreatment of test samples in food safety inspection centers.
A1: No. It is a single-use disposable lab consumable. High temperature autoclaving will cause tube deformation, scale falling off and sterilization failure, which may trigger cross-contamination of samples, so reuse is strictly prohibited.
A2: The blue ring is the international color code for 50mL serological pipettes, used to quickly distinguish different volume specifications to avoid operational errors.
A3: Yes. The product is marked non-pyrogenic, EO sterilized and cytotoxicity tested, fully qualified for cell medium exchange and large-volume liquid transfer in cell culture work.
