CATEGORIES

    Micropipette

    Overview Knowledge Standards Terms
    A micropipette creates negative pressure inside the tip via a piston to draw in liquid and dispenses a precise volume when released. It is used for transferring small volumes of liquid in laboratory operations, performing sample distribution and reagent addition in biochemical and medical testing.
    Selection
    When selecting, consider matching the pipetting range to experimental needs, check the accuracy error value, confirm ergonomic design to reduce operational fatigue, examine tip compatibility and sealing, and pay attention to the convenience of calibration and maintenance.
    Pipette method
    Modulation polarography
    Number of discharge channels
    Sterilizing situation
    range

    Terms

    Adjustable Pipette
    Laboratory pipette
    Quantitative pipette
    Pipette
    Micropipette with adjustable volume
    Manually adjustable pipette

    Standards

    Active GB/T 45593-2025
    Fine ceramics—Determination of the abrasion resistance of coatings by micro-scale abrasion test
    Active GB/T 45125-2025
    Determining of the softening point of phenolic resin for digita printing material—Microscopic meltingpoint melthod
    Active GB/T 16582-2008
    Plastics - Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
    Active GB/T 41852-2022
    Semiconductor devices—Micro-electromechanical devices—Bend-and shear-type test methods of measuring adhesive strength for MEMS structures
    Active GB/T 28124-2025
    Gas analysis—Determination of the trace contents of hydrogen,oxygen,methane and carbon monoxide in inert gases—Gas chromatography with zirconia detector
    Active GB/T 27596-2011
    Dyestuffs - Determination of particle fineness - Microscope method
    Active GB/T 41942-2022
    Rubber, raw natural, and rubber latex, natural—Determination of nitrogen content—Micro Dumas combustion method
    Active GB/T 7376-2008
    Determination of micro-amounts of water in industrial Fluorinated alkane
    Active GB/T 5832.2-2016
    Gas analysis—Determination of water—Part 2: Dew point method
    Active GB/T 5832.1-2016
    Gas analysis—Determination of water—Part 1: Electrolytic method
    Active GB/T 26814-2011
    Microwave digestion equipment
    Active GB/T 26793-2011
    Coulometry micro water teller
    Active GB/T 33052-2016
    Microporous functional membrane—Measurement for Porosity—Absorption method by cetane
    Active GB/T 6609.30-2022
    Chemical analysis methods and determination of physical performance of alumina—Part 30: Determination of trace elements—Wavelength dispersive X-ray fluorescence spectrometric method
    Active GB/T 42674-2023
    Optical functional films—Measurement method for microstructure thickness

    Articles

    Application of Gravure Printing Proofer in Water-based Ink Proofing and Pinhole Defect Evaluation
    This article introduces how the gravure printability tester is used for water-based ink proofing and pinhole defect evaluation. Water-based inks are environmentally friendly but prone to tiny pinhole defects. The instrument enables standardized sample preparation and reduces human interference by controlling parameters such as cell depth and doctor blade angle.
    Resistance Tester Selection: Measurement Methods for Low Resistance and High Resistance
    This article introduces the selection method of resistance testers. Based on the range of the measured resistance, low resistance requires the four-wire Kelvin method, using constant current and voltage measurement to eliminate the influence of contact resistance; high resistance uses the voltage method to measure tiny currents, with attention to shielding and leakage prevention.
    Laboratory rod coater for submicron wet film preparation of photoresist.
    This article introduces the process of using a laboratory bar coater to prepare submicron wet films of photoresist.
    Optimization of mixing efficiency of vortex mixer in liquid-liquid microextraction
    This paper explores how to enhance mixing efficiency in liquid-liquid microextraction by adjusting the operating parameters of a vortex mixer.
    Application of Karl Fischer Micro Moisture Meter in Moisture Control of Lithium Battery Electrolyte
    The Karl Fischer micro-moisture analyzer is based on the Karl Fischer titration principle, which measures trace moisture in lithium battery electrolytes through the quantitative reaction between iodine and water.
    Effect of Rapid Temperature Change Aging Chamber on Thermal Cycling of Composite Materials
    This article primarily explores how rapid thermal cycling chambers affect the performance of composite materials during thermal cycling. It explains that thermal cycling can induce internal stresses in composite materials due to differences in the thermal expansion coefficients of their components, potentially leading to microcracks or performance degradation.
    Selection of laboratory grinders is based on the fineness requirements of coatings, choosing between ball mills or sand mills.
    The selection of a laboratory grinder should be based on the fineness requirements of the coating. A fineness greater than 50 microns indicates coarse dispersion, 10 to 50 microns is considered medium fineness, and less than 10 microns requires high fineness dispersion.
    Superhydrophobic surface coating is applied to the microstructure substrate using a film coating machine.
    This article introduces the coating process of superhydrophobic surface coatings on microstructured substrates. Superhydrophobic coatings feature high water contact angles and low rolling angles, making them widely used in applications such as anti-fouling and waterproofing.
    Vacuum adsorption coating table solves the problem of film substrate wrinkling.
    The vacuum adsorption coating platform uses a microporous array connected to a vacuum system beneath the tabletop to create a pressure difference, tightly adsorbing the film substrate. This ensures it remains flat during the coating process, preventing wrinkles that could lead to uneven coating.
    Selection criteria for linearity error of semi-micro balances
    The linearity error of a semi-micro balance refers to the deviation between the actual displayed value and the theoretical value within its weighing range. This indicator directly affects the accuracy of weighing, which is particularly important in scenarios requiring high-precision measurements, such as material analysis or environmental monitoring.
    Weighing lower limit of microbalances and selection basis
    The lower weighing limit of a microbalance refers to the minimum mass that can be measured while ensuring accuracy, which is crucial for the reliability of experimental data. It is influenced by factors such as sensor sensitivity, structural resistance to interference, and environmental stability.
    Repetibility Test Method and Weights for Semi-micro Balances
    This article discusses the method for repeatability testing of semi-micro balances and the use of weights. Repeatability refers to the consistency of the balance's results when weighing the same object multiple times under the same conditions, which is crucial for the reliability of experimental data.
    Analysis of Causes for Excessive Repetition Error in Microbalances
    Microbalance repeatability out-of-tolerance refers to the situation where the results of multiple weighings of the same object exceed the allowable range of variation.
    Determination of free amino acid content in protein solutions using a microtitration apparatus.
    This article introduces a method for determining the free amino acid content in protein solutions using a microtiter plate reader. It is based on the ninhydrin color reaction, where amino acids react with the reagent under specific conditions to produce colored compounds, and the concentration is calculated by measuring the absorbance.
    Total Chlorine Content Microcoulometric Titration Detector for Pulp
    This article introduces a method for detecting the total chlorine content in pulp using a microcoulometric titrator. The principle involves generating a titrant through electrolysis, which reacts with chloride ions produced from the combustion of the sample. The chlorine content is accurately calculated by monitoring the amount of electricity consumed.