Practical

What is Inoculating Loops and Needles? Definition of Inoculating Loops and Needles Inoculating loops and needles are handheld tools used in microbiology laboratories to transfer and manipulate microorganisms. Inoculating loops are wire loops with a small diameter used to collect and streak microbial cultures on solid agar-based media. Inoculating needles are sharp needles used to … Read more

What is a Colorimeter? Colorimeter Definition A colorimeter is a scientific instrument used to measure the absorbance of specific wavelengths of light by a solution, aiding in determining the concentration of a solute within that solution based on the Beer-Lambert law. Principle of Colorimeter – How does a colorimeter work? The principle of a colorimeter … Read more

A hot air oven is a laboratory appliance that is used to dry, sterilize, or heat materials. It works by circulating hot air inside the oven chamber to evenly distribute heat to the materials being processed. Hot air ovens are often used in a variety of settings, including research laboratories, industrial settings, and educational institutions. … Read more

What is Gel Electrophoresis System? Definition of Gel Electrophoresis System Gel electrophoresis is a laboratory technique that uses a gel as a medium to separate and analyze biomacromolecules such as DNA, RNA, and proteins based on their size and charge. An electric field is applied to move the molecules through the gel, with smaller or … Read more

What is Alcohol burner? Definition of Alcohol burner An alcohol burner is a small, portable laboratory device that uses denatured alcohol as fuel to produce a controlled flame for heating, sterilization, and experimental purposes. Working Principle of Alcohol burner Factors that affect the working principle of an alcohol burner Several factors can influence the working … Read more

What is a Bunsen Burner? Definition of Bunsen Burner A Bunsen burner is a laboratory gas burner that produces a controlled flame for scientific experiments and research purposes. Principle of Bunsen burner The Bunsen burner, a staple in scientific laboratories, operates on foundational principles of combustion and gas mixing. Constructed predominantly from metal, the burner … Read more

What is Colony Counter? Definition of Colony Counter A colony counter is a device used in microbiology laboratories to count bacterial or microorganism colonies on a solid growth medium. It simplifies and accelerates the colony counting process, providing an accurate measurement of colony forming units (CFUs) in a given sample. Purpose of colony counting The … Read more

What is Two pan or equal arm analytical balance? Principle of Two pan or equal arm analytical balance – How does a two-pan or equal-arm analytical balance work? Parts of a Two pan or equal arm analytical balance Additional parts that may be found on some two-pan analytical balances include: While the core components mentioned … Read more

What is Single Pan or Unequal Arm Mechanical Balance? Parts of Single Pan/Unequal Arm Mechanical Balance A single pan or unequal arm mechanical balance consists of several key parts that contribute to its functioning and accuracy. Here is a description of the various parts: These parts work together to create a functional and reliable single … Read more

What is Triple Beam Balance? Definition of Triple Beam Balance A triple beam balance is a precise measuring instrument used to determine the mass of an object. It consists of three beams, each with different sizes and scale readings, allowing for precise measurements ranging from 0.1 grams to 600 grams. Parts of Triple Beam Balance … Read more