CENTRIFUGE TUBE
Centrifuge tube is a cylindrical, conical-bottomed container used in laboratories to hold samples during centrifugation. Made of plastic or glass, it is designed to withstand high-speed spinning that separates components based on density. Centrifuge tubes come in various sizes (e.g., 1.5 mL, 15 mL, 50 mL) and often have screw caps or snap lids to prevent leakage during use.
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PCR tubes are small, thin-walled plastic tubes used in Polymerase Chain Reaction (PCR) to hold DNA samples during thermal cycling. Made of polypropylene, they ensure efficient heat transfer and chemical resistance. They typically come in 0.2 mL or 0.5 mL sizes, with flat or domed caps. PCR tubes are essential for precise and contamination-free DNA amplification.
A stand and clamp is a basic yet essential piece of laboratory equipment used to hold and support apparatus during experiments. It provides stability and helps secure glassware or other tools in place.
Racks are laboratory tools used to hold, organize, and store test tubes safely and upright. They are made of plastic, wood, or metal and come in various sizes to fit different tube diameters. These racks help prevent spillage, breakage, and contamination during experiments, making them essential for safe and efficient laboratory work.
film made of polyolefines and paraffin waxes Service temperature from 45 ?C up to +50C (melting point +60 C) Resistant to saline solutions, most common inorganic acids and bases used in laboratory and some organics solvents (methanol, ethanol and 2-propanol) Not resistant to diethylether, chloroform, carbon tetrachloride, benzene or toluene.
A vacuum distillation glass set is a laboratory apparatus used to distill liquids at reduced pressure, allowing substances with high boiling points to vaporize at lower temperatures. This prevents thermal decomposition and is ideal for heat-sensitive compounds.
Porcelain crucible is a small, heat-resistant container made from ceramic material, used in laboratories for heating substances to very high temperatures. It is commonly used in ash content analysis, metal melting, and chemical reactions that require intense heat. Crucibles can withstand open flames and are often used with a lid and a clay triangle during heating.
Pipette tips are disposable, narrow plastic attachments used with micropipettes to accurately transfer small volumes of liquid in laboratories. They ensure precision, prevent cross-contamination, and are available in various sizes (e.g., 10 µL, 200 µL, 1000 µL). Sterile pipette tips are used in sensitive experiments like molecular biology, cell culture, and PCR.
The Le Chatelier Specific Gravity Bottle is a specialized glass apparatus used to determine the specific gravity (relative density) of fine materials like cement. It has a narrow neck with a graduated scale and a bulb at the bottom. The bottle accurately measures the volume displaced by a known weight of material, helping assess quality and consistency in construction materials.
Burette is a long, graduated glass tube with a tap at the bottom, used in laboratories to accurately deliver measured volumes of liquids, especially in titrations. It allows controlled addition of a solution to react with another in a flask. Burettes are marked with precise volume measurements, making them essential for quantitative chemical analysis.
Petri dishes are shallow, circular, flat-lidded dishes typically made of glass or plastic, used in laboratories for culturing microorganisms like bacteria and fungi. Filled with a nutrient medium (e.g., agar), they provide a controlled environment for microbial growth. Petri dishes are essential tools in microbiology, cell culture, and research involving observation of microbial colonies and growth patterns.
A hydrometer is an instrument used to measure the specific gravity (relative density) of liquids. It consists of a sealed glass tube with a weighted bottom, allowing it to float upright. The level to which it sinks indicates the liquid’s density. Hydrometers are commonly used in brewing, winemaking, and battery testing.
Cuvettes are small transparent containers used in spectrophotometry to hold liquid samples for absorbance or transmittance measurements. Made of glass, plastic, or quartz, they allow light to pass through the sample. Quartz cuvettes are preferred for UV light analysis. They are essential for accurate optical readings and must be handled carefully to avoid contamination or scratches.
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