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Page 2 - Sample Prep & Processing

  1. Lab Mixers and Rockers Features Comparison Chart

    Lab Mixers and Rockers Features Comparison Chart

    Laboratory mixers consist of an oscillating, motorized platform, designed to hold flasks, beakers, or tubes, installed onto a stabilizing base and connected to an analog or digital controller to regulate the movement and speed of the platform. 


    Unlike high-speed lab shakers or vortexers, which mix samples in orbital or vortex motions, mixers gently agitate samples in linear rocking, tilting or rotating motions. Commonly used in molecular biology or biochemistry labs, mixers are ideal for gel staining, western blotting, or hybridization assays.

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  2. Laboratory Waterbath Features Comparison

    Laboratory Waterbath Features Comparison

    Water baths, or wet baths, consist of a stainless steel basin filled with heated water and equipped with a digital controller. Water baths are used for sample thawing, reagent warming, substrate melting, coliform determinations, and bacteriological assays by clinical labs, academic research facilities, environmental testing laboratories, and food product quality control testers.

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  3. Laboratory Stirrers Feature Comparison Chart

    Laboratory Stirrers Feature Comparison Chart

    Overhead stirrers consist of a stirring fixture, or stand, a digital controller, a drive shaft, and a motor for mixing viscous solutions. Overhead stirrers are used for a broad range of mixing applications including tissue grinding, cell media preparation, wastewater purification, formulation of polymers, adhesives, and coatings.

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  4. Lab Dispersers Comparison Chart and Overview

     Lab Dispersers Comparison Chart and Overview

    Laboratory dispersers, sometimes referred to as high-speed shearers or rotor-stator mixers, are a type of overhead stirrer designed to disperse, rather than mix, compounds. As opposed to homogenizers, which uniformly mix two or more miscible components, dispersers create a mixture of two or more immiscible components owing to liquid-liquid or solid-liquid phase separations. Popular dispersions include emulsions (liquid particles dispersed into another liquid) or grind dispersions (solid particles dispersed into a liquid).

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  5. Laboratory Hot Plates and Magnetic Stirrer Features Comparison Chart

    Laboratory Hot Plates and Magnetic Stirrer Features Comparison Chart

    Laboratory hot plates consist of a heating element installed underneath a plate surface, manufactured from conductive steel or plastic, connected to a digital or analog controller.

    Ubiquitous in clinical, production and research labs, hot plates are used to slowly and safely heat samples, reagents and chemicals without the dangers associated with the open flame of a Bunsen burner.

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  6. Lyophilizer Features Comparison - Freeze Dryers for Microbiology and Pharmaceuticals

    Lyophilizer Features Comparison - Freeze Dryers for Microbiology and Pharmaceuticals

    Lyophilization, or freeze drying, is a common technique used in the pharmaceutical and food industries to vacuum freeze samples for long-term, ambient storage.

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  7. Pipette Features Comparison

    Pipette Features Comparison

    Pipettes are the primary means for transferring liquids, often in milliliter and microliter volumes, into test tubes, microplates, and conical vials for analysis, storage or mixing. Pipettes aspirate a user-selected volume of liquid – samples, reagents, media – from one vessel, then dispense the set volume of liquid into another vessel according to standard operating procedures. Pipettes, or pipettors, are available in a broad range of designs (single-channel or multi-channel), volume ranges, and control systems (mechanical and electronic) for different applications and experience levels.

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  8. Compare Liquid Nitrogen Storage Tanks, Freezers, Vessels, and Dewars

    Compare Liquid Nitrogen Storage Tanks, Freezers, Vessels, and Dewars

    Liquid nitrogen vessels are designed to support long-term storage of samples at cryogenic temperatures (-196°C to -210°C). The process of cryo-preservation is widely used in clinical diagnostics, immunotherapy development, food and beverage, and semiconductor storage. Samples prepared with cryo-protectants, such as DMSO, can remain viable for up to a decade when stored in liquid nitrogen.

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  9. Centrifuge Rotor Types: Swinging Bucket vs. Fixed Angle

    Centrifuge Rotor Types: Swinging Bucket vs. Fixed Angle

    Centrifugation is one of the most widely used laboratory techniques for the separation of materials in the fields of biochemistry, molecular biology, medicine, food sciences and industry. It’s all about gravity and mass: particles in a heterogeneous solution will, given enough time, separate based on their size and density. Smaller, less-dense particles may also migrate down, but not always; some particles will never settle, but remain suspended in solution. Centrifuges force this process along much more quickly and efficiently. Its uses have proven to be so powerful and wide-spread across the sciences that centrifuges have been a common piece of laboratory equipment since the late 19th century.

    Centrifuge tube showing separation
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  10. What Type of Laboratory Water Do I Need?

    What Type of Laboratory Water Do I Need?

    Water’s ability to dissolve compounds, along with its polarity, bonding, melting, boiling and freezing points, heat absorption, and vaporization characteristics arguably make it the most versatile substance we know. It’s also ubiquitous and plentiful: the earth can’t live without it, most plants and animals can’t exist without it, and scientists can’t operate labs without it.

    Water is the most common reagent used in the laboratory, and while water quality can often be overlooked, the grade of water being used in an application is critical. Minute traces of salts or biological contaminants can result in unfortunate consequences when culturing cells or performing analytical measurements of biological macromolecules.

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