Overview
PCR tubes are specialized consumables critical for polymerase chain reaction (PCR), a foundational technique in molecular biology. These tubes are engineered to withstand rapid temperature cycles (typically 4–100°C) during PCR protocols without warping or leaching contaminants. Standard sizes include 0.2ml (for most modern thermal cyclers) and 0.5ml (for legacy systems), often sold in racks of 96 or 120 units. Manufacturers produce PCR tubes with varying cap designs: flat caps for automated systems, domed caps for manual handling, and strip caps for multi-sample processing. Premium variants may feature barcodes for sample tracking or ultra-thin walls to optimize thermal conductivity. The tubes’ material purity is paramount, as impurities can inhibit enzymatic reactions.
Physical and Chemical Properties
PCR tubes are predominantly made from medical-grade polypropylene (PP), chosen for its high melting point (160°C) and low autofluorescence. This material maintains structural integrity across PCR thermal cycles while minimizing sample adhesion. Advanced formulations may incorporate additives like virgin polymer resins to reduce batch-to-batch variability. Key performance metrics include wall thickness (typically 0.1–0.3mm for balance between durability and heat transfer) and optical clarity for real-time PCR applications. Chemical resistance to common laboratory reagents (e.g., ethanol, isopropanol) is standard, though prolonged exposure to strong acids/bases should be avoided. Most commercial PCR tubes are certified DNase/RNase-free and non-pyrogenic.
Main Applications
The primary use of PCR tubes is in nucleic acid amplification workflows, including endpoint PCR, qPCR, RT-PCR, and multiplex PCR. Clinical laboratories employ them for infectious disease testing (e.g., COVID-19 diagnostics), while research facilities utilize them for gene expression analysis, genotyping, and cloning. Specialized variants serve niche applications: skirted tubes for direct loading into electrophoresis gels, low-profile tubes for high-density thermal cyclers, and PCR tubes with attached sieves for bead-based purification. In industrial settings, they’re used for GMO detection in agri-food testing and quality control in biopharmaceutical production.
Safety and Storage
While PCR tubes pose minimal direct hazards, proper handling prevents cross-contamination. Pre-sterilized (gamma-irradiated) tubes are recommended for sensitive applications. Users should avoid overheating beyond 120°C for extended periods, which may cause tube deformation. Storage conditions are straightforward: keep unopened packages in dry environments (15–25°C) away from direct sunlight. Opened racks should be used within 6 months or resealed with desiccants. For long-term sample storage post-PCR, consider tubes with O-ring seals to prevent evaporation. Always confirm chemical compatibility when storing reaction mixes.
B2B Procurement Guide
Bulk buyers should prioritize vendor certifications (ISO 13485 for medical devices, USP Class VI for biocompatibility). Key selection criteria include: thermal cycler compatibility (verify manufacturer’s compatibility charts), cap seal integrity (test with colored dye solutions), and lot-to-lot consistency. For cost optimization, evaluate bulk pricing tiers (typically 10,000–100,000 units) and consider automation-friendly packaging formats like reloadable racks. Leading manufacturers include Eppendorf, Thermo Fisher, and Corning, though regional suppliers may offer competitive pricing for standard applications. Request material certificates and performance data sheets for regulatory compliance documentation.
Related Manufacturers
- 主营：移液器、天平、纯水机、冷冻干燥机、烘箱干燥箱、离心机、水分测定仪、荧光定量PCR仪、电位滴定仪、隔膜真空泵、微波消解仪、折光仪、原子荧光光度计、外可见分光光度计、磁力搅拌器
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、进口ELISI试剂盒、PCR试剂盒、细胞、生物试剂
- 主营：ELISA试剂盒、PCR试剂盒、科研试剂
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、检测试剂盒、蛋白、抗体、细胞
- 主营：igg抗体、糖蛋白、脂蛋白、试剂盒、测试盒、人瘦素、粗纤维、猪睾酮、烯二酮、nad激酶、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、pcr试剂盒、细胞
- 主营：脂蛋白、关基因、亲环素、ELISA试剂盒、PCR试剂盒、生化试剂盒、钾通道、列抗体、ntp溶液、蛋白酶、脑蛋白、病毒抗、蛋白质、239抗体、dtt溶液、科研试剂
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、科研试剂
- 主营：酶cγ链、α2巨球、素d合成、ELISA试剂盒、pcr检测试剂、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、小鼠α1抗、生化检测试剂
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、生化试剂盒、进口ELISA试剂盒、PCR试剂盒、生化测试盒、细胞、生物试剂
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、进口ELISA试剂盒、PCR试剂盒、生化测试盒、细胞、生物试剂
- 主营：ELISA试剂盒、抗体
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、蛋白、抗体、细胞
- 主营：防爆气象站、自动气象站、农业气象站、非洲猪瘟试剂盒、超声波气象站、小型气象站、光伏气象站、手持气象站、气象监测仪、三维风速风向仪、微型气象仪、气象传感器、便携式气象站、气象监测站、车载气象站、校园气象站、土壤墒情监测站、负氧离子监测站、水位监测站、水雨情监测设备、水质在线监测仪、EL检测仪、IV测试仪、虫情测报灯、孢子分析仪、非洲猪瘟检测仪
- 主营：雪深监测、浮子水位计、风速风向仪、非洲猪瘟检测试剂盒、流速传感器、雷达水位计、大棚传感器、流量监测仪、流速流量仪、测水深仪器、车载气象站、化碳传感器、监测传感器、环境监测仪、风向传感器、手持气象仪、气象站设备、风速传感器、水位传感器、气象观测仪、雷 达流速仪、微气象传感器、气象观测设备、应急气象设备、自动监测系统、超声波液位计