graphite tube
A graphite tube is a crucial analytical instrument component widely used in atomic absorption spectroscopy and related analytical techniques. This specialized tube, crafted from high-purity graphite, serves as both a sample container and atomization chamber in analytical processes. The tube's design typically features a cylindrical shape with precise dimensions, allowing for optimal sample heating and atomization. When integrated into analytical instruments, the graphite tube operates at extremely high temperatures, often reaching up to 3000°C, enabling the complete atomization of samples for accurate analysis. The tube's internal surface is specially treated to enhance its durability and prevent sample contamination, while its external surface is coated with pyrolytic graphite to protect against oxidation. This sophisticated design enables precise temperature control during the analysis process, supporting multiple stages including drying, pyrolysis, and atomization. The graphite tube's exceptional thermal conductivity and chemical inertness make it ideal for trace element analysis across various industries, including environmental monitoring, pharmaceutical testing, and materials science.