A spectrophotometer is a core spectroscopic instrument that enables the qualitative and quantitative analysis of substances based on the principle of selective light absorption. Its theoretical foundation is the Lambert-Beer law. By measuring the absorbance of a sample at a specific wavelength, the composition and concentration of the substance can be accurately determined. As essential equipment in modern [...]

When you visit the hospital, you might worry: Are the instruments the doctors use clean? Is there a risk of cross-contamination? In fact, hospitals have a strict disinfection and sterilization system in place. Among these, there is one unassuming yet crucial piece of equipment that quietly safeguards the safety of every patient—the ethylene oxide sterilizer. Statistics show that [...]

Fume hoods are essential safety devices in laboratories handling chemicals, solvents, and airborne hazards. While most users understand that a fume hood protects them by capturing harmful vapors, a common question remains: where does that exhaust actually go? The answer is not as simple as “outside.” Modern laboratory ventilation systems are designed with controlled airflow, treatment technologies, and [...]

Common contaminants in tap water include enzymes, gases, organic matter, microorganisms (bacteria, viruses), and others. Laboratory water purification aims to filter out various contaminants from water to meet the requirements of chemical analysis and biological experiments. Understanding the types, performance characteristics, and applicable uses of different water purification systems helps laboratories select appropriate equipment based on actual needs. [...]

Laboratories contain numerous temperature-sensitive samples, such as blood bags and vaccines. To ensure the viability and safety of these samples remain unaffected, they must be stored within specified temperature-controlled ranges. Any temperature fluctuations, cold chain interruptions, or unstable storage conditions may cause protein denaturation or sample degradation. This directly impacts the accuracy of test results and the reliability [...]

A PCR cabinet is a specialized workstation designed to create a controlled environment for Polymerase Chain Reaction (PCR) procedures. It helps minimize contamination risks by providing a sterile area, ensuring the accuracy and reliability of PCR results. Typically equipped with UV light and HEPA filters, PCR cabinets are essential for DNA amplification processes in molecular biology labs. Continue [...]

What is a laminar flow cabinet? Clean benches and biosafety cabinets are commonly used as examples of laminar flow hoods. These devices are designed to direct high-quality air to the work surface. A laminar flow cabinet is a closed-system device equipped with a HEPA filtration system, designed to provide a clean and sterile operating environment during experiments. It [...]

Ensuring safety in the laboratory is of utmost importance, and biosafety cabinets and laminar flow hoods are critical pieces of equipment for achieving this goal. Although the two appear similar in appearance, they differ significantly in terms of function, application, and design principles. This article will provide a comprehensive comparison of biosafety cabinets and laminar flow hoods, detailing [...]

Ethylene oxide sterilization gas is the most commonly used sterilization method at room temperature. Ethylene oxide sterilization is widely applied in the sterilization of medical devices. Due to its active nature, strong bactericidal power, and minimal damage to items, ethylene oxide sterilization is currently one of the primary sterilization methods. This article will discuss the sterilization process, principles, [...]

A biological safety cabinet (BSC) is a critical piece of laboratory equipment designed to protect laboratory workers, the surrounding environment, and samples from exposure to harmful biological agents. These cabinets provide a controlled environment by using airflow systems to prevent contamination, ensuring both safety and accuracy in experiments involving pathogens, toxins, and other hazardous biological materials. Available in [...]