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The manual pipette is a fundamental precision instrument designed for accurate liquid sampling and dispensing across various laboratory environments. As a cornerstone of routine liquid handling, this device ensures that researchers and technicians can transfer specific volumes of fluids with high consistency and reliability. For laboratory managers and procurement professionals, selecting a dependable manual pipette is critical for maintaining the integrity of experimental data, standardizing daily operational workflows, and minimizing equipment-related variables in sensitive analytical procedures.
This instrument operates fundamentally on the air displacement principle, a proven and highly reliable mechanism for standard liquid handling tasks. Within the pipette structure, a piston moves to displace a specific volume of air, creating a precise vacuum that subsequently draws an equivalent volume of liquid into the disposable tip. A key advantage of the air displacement methodology is that an air cushion constantly separates the piston mechanism from the aspirated liquid. This design ensures that the fluid only comes into contact with the consumable tip, effectively protecting the internal components of the pipette from cross-contamination, corrosion, and chemical damage. It is universally recognized for providing exceptional precision when working with standard aqueous solutions.
To accommodate the diverse liquid handling requirements of modern analytical facilities, this manual pipette series covers an extensive total volume range from 0.1 μL to 10 mL. This broad capacity spectrum allows laboratories to equip their workstations with a consistent line of instruments, whether the task requires ultra-micro volume sampling for highly sensitive assays or larger volume dispensing for routine buffer and reagent preparation. By covering the entire 0.1 μL to 10 mL range, the series provides a scalable solution that simplifies inventory management for purchasing departments and meets the foundational needs of various experimental procedures without requiring multiple disparate instrument brands.
Quality assurance is paramount in laboratory instrumentation, and this manual pipette strictly complies with the ISO 8655 standard. ISO 8655 is the critical international standard for piston-operated volumetric apparatus, defining the rigorous requirements for accuracy, precision, and maximum permissible systematic and random errors. Compliance with this standard assures procurement teams that the instrument has been manufactured, assembled, and calibrated to deliver trustworthy, reproducible results out of the box. By adhering to ISO 8655 guidelines, the pipette significantly reduces the risk of volumetric discrepancies, ensures long-term reliability, and facilitates easier routine calibration audits required in professional, regulated laboratory settings.
The internal mechanism utilizes a specialized piano wire spring set, engineered to deliver exceptional strength, superior toughness, and rapid rebound capabilities. For laboratory technicians performing repetitive liquid handling tasks, this design translates to a consistent and smooth plunger force, significantly reducing hand fatigue during prolonged use. Furthermore, the resilient spring construction ensures that the manual pipette maintains its structural integrity and calibration accuracy over long-term operation, resisting deformation and minimizing the need for frequent maintenance or replacements.
To accommodate diverse experimental requirements, this manual pipette series is available in 9 distinct volume sizes. This extensive range enables procurement managers and laboratory directors to standardize their liquid handling equipment using a single, reliable model. Whether the task involves micro-volume dispensing or macro-volume transfers, the available sizes support precise volume adjustment. Standardizing on one series simplifies user training, streamlines inventory management, and ensures consistent performance across different laboratory departments.
Maintaining a sterile working environment is critical for preventing cross-contamination in sensitive assays. This manual pipette features a practical sterilizable construction that supports half-unit autoclaving (lower part only). By allowing the lower assembly to be easily detached and subjected to high-pressure steam sterilization, users can effectively eliminate biological contaminants without exposing the sensitive internal calibration mechanisms of the upper body to harsh temperatures. This targeted sterilization approach facilitates straightforward daily cleaning and routine maintenance while extending the overall operational lifespan of the instrument.
Accuracy in liquid transfer begins with the correct volume setting. The pipette is equipped with a large, clear, and intuitive digital display window that allows users to verify the selected volume at a glance. This ergonomic visual design is specifically intended to reduce operation errors, especially in fast-paced laboratory environments where technicians process multiple samples simultaneously. The clear visibility of the digits ensures that volume adjustments are precise, thereby enhancing the reliability of experimental data and reducing the risk of costly procedural mistakes.
The aspirating and dispensing control lever is designed for maximum sensitivity, providing users with tactile feedback and exact control over the liquid flow. This precise mechanism ensures that every drop of the sample is dispensed accurately, leaving no liquid residue inside the tip. For laboratories working with expensive reagents, enzymes, or limited sample volumes, this zero-residue characteristic is vital. It guarantees the exactness of liquid transfer, supports highly reproducible results, and prevents the waste of valuable laboratory resources.
The longevity and reliability of laboratory instruments heavily depend on the materials used in their construction. Key components of this manual pipette are manufactured from advanced, corrosion-resistant engineering plastics, specifically PVDF (Polyvinylidene fluoride) and PPS (Polyphenylene sulfide). These materials offer exceptional resistance to a wide range of aggressive chemicals, solvents, and corrosive vapors commonly encountered in laboratory settings. By utilizing PVDF and PPS, the pipette is protected against chemical degradation, ensuring a significantly extended service life and providing a reliable return on investment for procurement teams.
Volume range | Increment | Measured volume | Systematic error (Tolerance) | Repeatability error | Compatible tip |
0.1-2.5 mL | 0.05 mL | 0.1 μL | ±4.1% | ±2.5% | 10 μL |
1 μL | ±4.0% | ±2.0% | |||
2 μL | ±2.1% | ±2.0% | |||
2.5 μL | ±1.1% | ±0.9% | |||
0.5-10 μL | 0.1 μL | 1 μL | ±4.0% | ±2.0% | 10 μL |
2 μL | ±2.0% | ±1.5% | |||
10 μL | ±1.0% | ±0.8% | |||
2-20 μL | 0.5 μL | 2 μL | ±3.5% | ±2.0% | 20 μL |
10 μL | ±1.5% | ±1.0% | |||
20 μL | ±1.0% | ±0.6% | |||
5-50 μL | 0.5 μL | 5 μL | ±4.0% | ±1.5% | 50 μL |
25 μL | ±2.0% | ±1.0% | |||
50 μL | ±1.0% | ±0.8% | |||
10-100 μL | 1 μL | 10 μL | ±1.0% | ±1.5% | 100 μL |
50 μL | ±0.8% | ±0.4% | |||
100 μL | ±2.0% | ±0.3% | |||
20-200 μL | 1 μL | 20 μL | ±2.0% | ±1.0% | 200 μL |
100 μL | ±0.8% | ±0.4% | |||
200 μL | ±1.0% | ±0.3% | |||
100-1000 μL | 5 μL | 500 μL | ±0.9% | ±0.4% | 1000 μL |
1000 μL | ±0.8% | ±0.3% | |||
1-5 mL | 50 μL | 2500 μL | ±0.9% | ±0.3% | 5000 μL |
5000 μL | ±0.9% | ±0.5% | |||
1-10 mL | 100 μL | 10000 μL | ±0.8% | ±1.0% | 100000 μL |
50000 μL | ±3.0% | ±0.9% | |||
100000 μL | ±4.0% | ±0.8% |
Accurate liquid transfer is a fundamental requirement for reliable outcomes in any modern laboratory. The manual pipette is designed to support a wide range of scientific disciplines by providing precise volume control during critical procedures. From academic research facilities to industrial quality control centers, this instrument facilitates standardized workflows and helps operators achieve consistent results across multiple daily tasks.
In biological research and life sciences, maintaining the integrity of cell cultures and microbial samples is paramount. The manual pipette is extensively utilized for media aspiration and dispensing, ensuring that precise volumes of nutrients, growth factors, or inhibitors are introduced into culture vessels. Whether setting up microplates for high-throughput screening, performing serial dilutions for colony counting, or transferring delicate cell suspensions, accurate volume delivery minimizes experimental variability. This level of control is essential for molecular biology applications, including DNA and RNA extraction, where minor volume deviations can significantly impact downstream data interpretation.
Analytical chemistry and synthetic laboratories rely heavily on the exact measurement of reagents to maintain correct stoichiometric ratios and ensure reaction reproducibility. The manual pipette serves as an indispensable tool for dispensing chemical reagents, buffers, and standard solutions. During sample preparation for techniques such as chromatography or mass spectrometry, operators use the pipette to create accurate calibration curves and perform precise dilutions. By enabling controlled liquid handling, it supports analysts in achieving reliable concentration gradients and consistent analytical readouts, which are critical for both qualitative and quantitative chemical assessments.
In clinical diagnostic settings, the accuracy of liquid handling directly correlates with the reliability of test results. The manual pipette is routinely applied in clinical sample analysis, including the processing of blood, serum, urine, and other biological fluids. Laboratory technicians depend on precise volumetric transfers when setting up enzyme-linked immunosorbent assays (ELISA), polymerase chain reaction (PCR) tests, and various biochemical profiles. Consistent pipetting ensures that sample-to-reagent ratios remain strictly within validated clinical protocols, thereby supporting laboratories in maintaining stringent quality assurance standards and ensuring diagnostic accuracy.
The food and beverage industry requires rigorous testing protocols to detect pathogens, chemical residues, and allergens. Within food safety testing laboratories, the manual pipette is utilized for extracting specific volumes of homogenized food samples and preparing serial dilutions for microbiological plating. It is also employed in the precise addition of extraction solvents when screening for pesticides, heavy metals, or mycotoxins. By facilitating accurate liquid manipulation, the pipette helps quality control technicians execute standardized testing methodologies efficiently, ensuring that consumer products meet regulatory compliance and safety guidelines.
By adapting to these diverse operational requirements, the manual pipette remains a versatile instrument for daily laboratory routines. It integrates into established protocols, assisting professionals across different scientific fields in maintaining high standards of accuracy and operational efficiency during liquid transfer tasks.
