Overview
Microcentrifuge tubes, often referred to as microtubes, are indispensable in modern laboratories for handling small volumes of liquids. These tubes are designed to endure high centrifugal forces, making them ideal for a variety of applications, including sample storage, DNA extraction, and PCR. Their small size, typically ranging from 0.5 mL to 2.0 mL, allows for efficient use of space in lab freezers and centrifuges. Made primarily from polypropylene, microcentrifuge tubes offer excellent chemical resistance and durability. They are available with either screw caps or snap caps, ensuring a secure seal to prevent sample leakage or contamination. These tubes are a fundamental tool in molecular biology, biochemistry, and clinical research laboratories.
Structure and Working Principle
Microcentrifuge tubes are simple in design but highly functional. They consist of a cylindrical body with a conical bottom, which facilitates the pelleting of solids during centrifugation. The tubes are paired with caps that can be either screw-on or snap-on, providing a tight seal to protect samples from evaporation and contamination. The working principle revolves around their ability to withstand high-speed centrifugation, often up to 20,000 x g. The conical bottom ensures that pellets are concentrated at the tip, making it easier to pipette supernatants without disturbing the pellet. This design is critical for protocols requiring precise separation of liquid and solid phases.
Key Features
Microcentrifuge tubes are renowned for their durability and versatility. They are resistant to a wide range of chemicals, including acids, bases, and organic solvents, making them suitable for diverse laboratory applications. The tubes are also autoclavable, allowing for sterilization and reuse in many cases. Another key feature is their clarity, which enables easy visual inspection of samples. Many tubes come with graduation marks for approximate volume measurement, though precise measurements should always be done with calibrated pipettes. Some variants are designed for cryogenic storage, with enhanced resistance to cracking at ultra-low temperatures.
Application Areas
Microcentrifuge tubes are used across various scientific disciplines. In molecular biology, they are essential for DNA and RNA extraction, PCR, and gel electrophoresis. In biochemistry, they are used for protein purification and enzyme assays. Clinical labs rely on them for sample storage and processing, especially in diagnostics. These tubes are also widely used in cryogenic storage, where samples need to be preserved at temperatures as low as -80°C or in liquid nitrogen. Their small size and secure sealing make them ideal for long-term storage of valuable biological samples.
Maintenance and Precautions
Proper maintenance of microcentrifuge tubes ensures their longevity and reliability. Always check for cracks or deformities before use, as compromised tubes can fail during centrifugation. Ensure that the caps are securely fastened to prevent leaks, especially when working with hazardous materials. Avoid overfilling the tubes, as this can lead to spillage during centrifugation. For cryogenic storage, use tubes specifically labeled as suitable for low temperatures to prevent cracking. Regularly inspect and replace tubes that show signs of wear or chemical degradation to maintain sample integrity.
B2B Procurement Guide
When procuring microcentrifuge tubes in bulk, consider factors such as material quality, cap type, and compatibility with your lab equipment. Polypropylene tubes are the standard due to their chemical resistance and durability. Screw caps are preferable for long-term storage, while snap caps offer convenience for frequent access. Look for suppliers that provide sterile, RNase/DNase-free tubes if working with sensitive molecular biology applications. Bulk purchasing can significantly reduce costs, but ensure that the tubes meet your specific requirements. Always request samples for testing before committing to large orders.
Related Manufacturers
- 主营：离心管、冷冻管、运输管、试剂槽
- 主营：过氧化氢消毒机
- 主营：硅胶面罩、餐具硅胶、硅胶包胶、球囊导管、硅胶扩张管、硅胶医疗、硅胶杯盖、硅胶耳塞、氧气面罩、液态硅胶、硅胶制品、防水护套、隔音耳塞、医用硅胶、防火硅胶、硅胶卫浴、硅胶奶嘴、医用推注器、硅胶保护套、硅胶包塑料、硅胶转接头、硅胶密封片、液态硅胶制品、液态硅胶注塑、液态硅胶制品定制生产
- 主营：贴纸标签、标签定制、机器贴标、冻存管标签、耐高温特种、热敏卡门票、耐高温吊牌、银高温标签、不干胶标签、包装牛皮纸、湿巾封口帖、耐高温标签、家具热敏纸、防水高温挂牌、防水吊牌标签、冷链物流标签、高温铝箔标签、彩色三防热敏、铝箔钢铁标签
- 主营：igg抗体、糖蛋白、试剂盒、2D冻存管、脂蛋白、人瘦素、粗纤维、猪睾酮、烯二酮、nad激酶、测试盒、牛瘦素、牛胆酸、原果胶、磷酸酶、犬肾素、含水量、人蛋白、甜菜碱、igm抗体、dna抗体、磷脂酶、大鼠超、犬叶酸、人胆酸、样受体
- 主营：试剂盒、elisa试剂盒、细胞、SBS标准2D冻存管、pcr试剂盒
- 主营：DNA聚合酶、清洁验证棉签、无菌拭子、病毒采样管、粪便采样器、粪便保存液、唾液采集器、CHG涂药器、TOC瓶、血样采集卡
- 主营：Elisa试剂盒、PCR试剂盒、PCR检测、1ml内旋冻存管、PCR检测试剂盒、核酸检测试剂盒、荧光定量检测试剂盒、荧光定量试剂盒、比色法检测试剂盒、生化试剂盒、比色法试剂盒、酶活性比色法检测试剂盒、酶活性检测试剂盒、微量法检测试剂盒、分光光度检测试剂盒、酶活分光光度试剂盒、ELISA试剂盒、ELISA检测、酶联免疫试剂盒、酶联免疫检测试剂盒、酶联免疫、细胞、抗体
- 主营：条码打印机、移动手持终端、标签打印机、冻存管标签纸、博思得打印机、霍尼韦尔扫描枪、PDA、思必拓手持终端、RFID打印机、RFID手持终端、得利捷扫描枪
- 主营：超净工作台、高压蒸汽灭菌器、生物安全柜、冻存管、低温冰箱、二氧化碳培养箱、生化培养箱、除颤仪、经皮黄疸仪、婴儿培养箱、生化分析仪、安全柜检测过滤器更换、红外线灭菌器、移液器、医用离心机、智慧药房、包埋机、脱水机、酶联免疫分析仪、欧莱博液氮罐、欧莱博移液器、欧莱博纯水机、欧莱博天平、欧莱博通风柜、切片机、化学发光免疫分析仪
- 主营：混匀仪、混样仪、均质器、移液器、yds-35-125、jxfstprp-64、jxfstprp-24、jxfstprp-cl、生物容器、细胞破碎、整支灭菌、单道手动、tissuelyser-48、漩涡混合器、细胞粉碎机、磁珠磁力架、迷你双垂直、恒温振荡器、电泳仪电源、漩涡混合仪、迷你离心机、净化工作台、掌上离心机、组织研磨机、冷冻研磨机
- 主营：移液器、搅拌器、分析天平、冻存管、旋转蒸发仪、离心机、混匀仪、振荡器、摇床、金属浴、培养箱、显微镜、加热板、定氮仪、水分测定仪、超声波清洗机、水质检测仪、基因扩增仪、浓缩仪、洗瓶机、反应釜、电泳仪、超声聚焦打断仪、滴珠机、凝胶成像、酸纯化系统
- 主营：检测方、钠尿肽、试剂盒、SBS标准2D冻存管、同源物、ep300检测、结合蛋白、大鼠c-肽(、微球蛋白、抗胰蛋白酶、淋巴瘤因子、蛋白磷酸酶、死亡激动剂、核心域蛋白1、大鼠e选择素、大鼠janus激酶、激活蛋白激酶、大鼠ⅱ型胶原、大鼠ⅳ型胶原、大鼠klotho蛋白、细胞激活因子、大鼠ⅲ型胶原、大鼠nadh脱氢酶1、大鼠ⅵ型胶原α1、elisa 检测试剂盒
- 主营：酶cγ链、α2巨球、素d合成、小鼠α1抗、纤连蛋白、抗组蛋白、肌醇抗体、蛋白样环、敏感蛋白、牛骨钙素、蛋白重链、金属肽酶、乳球蛋白、钩端螺旋、蛋白激酶、高血糖素、钙调蛋白、ELISA试剂盒、pcr检测试剂、生化检测试剂
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、SBS标准2D冻存管、蛋白、抗体、细胞