Stainless steel capillary pipes for HPLC & GC
The narrow bore of stainless steel capillary pipes enables the use of smaller sample volumes, enhancing sensitivity and resolution in chromatographic analysis. This feature is particularly advantageous in applications where the availability of sample material is limited. Stainless steel is favored for its exceptional chemical resistance, which is paramount in chromatography as it minimizes the risk of sample contamination and ensures the analytes' integrity. Capillary pipes made of stainless steel have the ability to withstand harsh chemical environments is particularly important for high-performance liquid chromatography (HPLC) and gas chromatography (GC), where various solvents and analytes are frequently employed.
Precision and Purity
A key advantage of stainless steel capillary tubes is their excellent thermal stability. The chromatographic process often involves the use of elevated temperatures to improve separation efficiency. Stainless steel's resistance to thermal expansion and contraction ensures the consistent flow of mobile phases, maintaining stable chromatographic conditions and precise retention times.
Stainless steel's smooth inner surface finish minimizes surface adsorption, a critical factor in ensuring accurate quantification and peak shape. This property reduces the risk of analyte loss or interaction with the pipe's interior, allowing for more reliable and reproducible results.
The mechanical strength and durability of stainless steel capillary pipes guarantee long-term performance and minimal maintenance. This resilience is particularly valuable in high-throughput chromatography laboratories, where frequent equipment replacement or maintenance can disrupt workflow and increase costs.