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A Brief Overview of Centrifuge Tubes

A Brief Overview of Centrifuge Tubes

2025-05-19

How to Choose Centrifuge Tubes Centrifuge tubes come in a variety of sizes, ranging from 0.2 mL to 2400 mL, and are made from different materials. Below are some key properties to consider when selecting centrifuge tubes. 1) Capacity: Determined by the volume of your sample. Note that in certain applications—such as high-speed centrifugation—the tube must be filled completely. 2) Shape: For collecting pellets, conical-bottom tubes are preferable, whereas round-bottom tubes are more suitable for density gradient centrifugation. 3) Maximum Relative Centrifugal Force (RCF): Detailed information is provided by the manufacturer. 4) Corrosion Resistance: Glass tubes are chemically inert, while polycarbonate tubes are sensitive to organic solvents such as ethanol and acetone. Polypropylene offers superior corrosion resistance. Refer to the manufacturer’s instructions for specific details. 5) Sterilization: Single-use plastic centrifuge tubes are typically sterilized prior to shipment. Glass and polypropylene tubes can be sterilized and reused. However, repeated autoclaving may cause polycarbonate tubes to crack or deform.

Here’s what you need to know about pipette tips.

Here’s what you need to know about pipette tips.

2025-04-22

Pipette tips are common consumables in the laboratory—such as Corning tips—which may seem unremarkable but are often overlooked. Today, we’ll take a closer look at everything you need to know about pipette tips.

Petri Dish Cleaning Procedure

Petri Dish Cleaning Procedure

2021-11-12

Typically, the process involves four steps: soaking, scrubbing, acid treatment, and rinsing. 1. Soaking: New or used glassware should first be soaked in clean water to soften and dissolve any adhering residues. Before use, new glassware should be briefly rinsed with tap water, then soaked overnight in 5% hydrochloric acid. Used glassware often contains substantial amounts of proteins and lipids; once dried, these substances are difficult to remove by brushing, so it should be immediately immersed in clean water after use for subsequent cleaning.

Precautions for Using Test Tubes

Precautions for Using Test Tubes

2023-06-05

(1) When filling a test tube with a solution, do not exceed half of its capacity; when heating, do not exceed one-third of its capacity.

Aseptic Laboratory Planning, Design, and Construction Solutions

Aseptic Laboratory Planning, Design, and Construction Solutions

2022-01-10

Aseptic laboratories are primarily used for research in biochemistry, biomedicine, microbiology, animal experimentation, genetic engineering, and biopharmaceuticals; collectively, these are referred to as cleanrooms.

Reagent Bottle Classification

Reagent Bottle Classification

2021-11-12

Glass, plastic; glass stoppers, rubber stoppers; wide-necked, narrow-necked; brown, transparent; ground‑glass, unground‑glass—among many other classification methods.

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