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实验室塑料器皿
PLS · Laboratory Consumables · 6 models
By Lab Manufacturers China Technical TeamLast reviewed Standards: USP <661> (plastic components and systems), USP <88> (biological reactivity tests), ISO 10993 (biological evaluation of medical devices)
Laboratory plasticware is moulded polymer equipment and disposables for storage, culture and handling. Polypropylene, polycarbonate, polystyrene and other polymers are chosen for chemical resistance, clarity, sterility and cost, and to control contamination risk in daily handling.
6 models of Plasticware
The 6 models below are current configurations; specifications are confirmed on quotation.
聚丙烯烧杯
A polypropylene beaker is a lightweight, unbreakable vessel for mixing and holding acids and bases. It is chosen where glass breakage or chemical attack is a concern, and is autoclavable for repeated use.
聚丙烯试剂瓶
A polypropylene reagent bottle stores aqueous and many solvent reagents with a leak-resistant screw cap. It is light, unbreakable and resistant to acids and bases, with a leak-resistant screw cap and PTFE-faced liner.
聚碳酸酯离心瓶
A polycarbonate centrifuge bottle is a clear, tough vessel rated for high g forces in preparative centrifugation. It allows the contents and any pellet to be seen, and is rated for high-speed rotors.
聚丙烯大桶
A polypropylene carboy is a large, unbreakable container for storing and dispensing bulk solutions. It is used for buffers, water and reagent handling at bench or process volume, with a tap or cap for dispensing.
无菌聚苯乙烯细胞培养瓶
A sterile polystyrene cell culture flask provides an optically clear, treated surface for adherent cell growth. It is supplied sterile with a vented or sealed cap for gas exchange for incubator use.
一次性称量船
A disposable weighing boat is a light plastic tray for weighing and transferring powders and liquids. It avoids cleaning, cross contamination and static cling between samples. Antistatic versions suit fine powders and small weights.
| Model | Material | Capacity range | Graduation | Max temperature | Chemical resistance |
|---|---|---|---|---|---|
| Polypropylene BeakerPLS-0001 | Polypropylene | 50–5000 mL | Approximate | 121 °C autoclave | Acids, bases, alcohols |
| Polypropylene Reagent BottlePLS-0002 | Polypropylene | 30–5000 mL | Approximate | 121 °C autoclave | Acids, bases, alcohols |
| Polycarbonate Centrifuge BottlePLS-0003 | Polycarbonate | 10–1000 mL | — | — | — |
| Polypropylene CarboyPLS-0004 | Polypropylene | 5–50 L | Moulded, approximate | 121 °C autoclave | Acids, bases, alcohols |
| Sterile Polystyrene Cell Culture FlaskPLS-0005 | Polystyrene | — | — | — | — |
| Disposable Weighing BoatPLS-0006 | PS, PP or antistatic PS | 5–250 mL | — | — | — |
Indicative values for this product class. Final specifications are confirmed on the quotation and in the calibration documents supplied with the instrument.
Plasticware works because polymers can be moulded into precise, low-cost shapes and selected for specific properties. Polypropylene resists most acids, bases and solvents, tolerates autoclaving and is translucent but not optically clear, so it is used for beakers, bottles and carboys. Polycarbonate is clear and tough, so it is used for centrifuge bottles where the contents must be seen and the vessel must resist high g forces. Polystyrene is optically clear and rigid, which suits cell culture flasks and dishes, and is supplied sterile and sometimes treated for cell attachment. Polyethylene is flexible and used for wash bottles and tubing. Unlike glass, plastics can adsorb analytes, leach additives such as plasticisers, and scratch, so they are chosen for applications where inertness requirements are lower or where disposability reduces contamination risk.
Choose the polymer from the chemistry, the temperature and the visibility needed. Polypropylene is the general-purpose choice for acids, bases and most solvents, and it can be autoclaved. Use polycarbonate where clarity and impact strength matter, but avoid it with strong alkalis and some solvents that cause stress cracking. Use polystyrene only for aqueous and culture work, since it is attacked by many solvents. Choose sterile, pyrogen-free and cell-culture-treated grades where cells, media or clinical samples are involved, and confirm the certification. Match the volume, closure and centrifuge rating to the application, and check that the resin does not adsorb the analytes of interest. For trace work, ask for leachables and extractables data, and prefer low-binding surfaces for proteins and peptides.
Plasticware are specified in reagent and buffer storage, cell culture and microbiology, centrifugation, sample transport and shipping, acid and base handling and disposable weighing and mixing.
Work with Plasticware is commonly governed by USP <661> (plastic components and systems), USP <88> (biological reactivity tests), ISO 10993 (biological evaluation of medical devices), ISO 13485 (medical device quality management), EN ISO 11607 (packaging for terminally sterilized devices) and ISO 11737 (sterilization of health care products). Instrument certifications such as CE marking are confirmed per configuration and never assumed.
Confirm the maximum temperature and autoclave compatibility of each polymer before use, since polypropylene tolerates about 121 °C and polystyrene does not. Avoid strong oxidising acids and solvents that cause environmental stress cracking, and test new polymer and chemical combinations before routine use. Use sterile techniques with culture ware and keep packaging intact until use, and do not reuse items intended for single use. Inspect bottles for crazing, cloudiness or odour, which can indicate chemical attack or leaching. Store plastics away from direct sunlight and heat, and keep certificates of analysis and sterility for regulated work. Where adsorption matters, run recovery checks with the analytes and the intended plastic before committing to a method.
Polypropylene suits most acids, bases and reagents, tolerates autoclaving and is inexpensive. For organic solvents, confirm compatibility, and avoid polystyrene, which is attacked by many solvents.
Polycarbonate is sensitive to environmental stress cracking, especially with strong alkalis, some detergents and solvents, and after repeated autoclaving. Cracks appear as fine lines and can lead to failure.
The surface has been modified, usually by plasma or corona treatment, to make it hydrophilic so cells adhere and spread. Untreated polystyrene is used for suspension culture or non-adherent work.
Items intended for single use should not be reused for regulated or sterile work, because cleaning and re-sterilising can change surface properties and leave residues. Reusable PP items may be washed and autoclaved if the supplier allows it.
