Agilent, 5183-4757, Inlet septa, bleed and temperature optimized (BTO), non-stick, 11 mm, 50/pk

Agilent bleed- and temperature-optimized (BTO) inlet septa are designed for GC injection ports where repeated needle penetration must be balanced with low background contamination. These non-stick silicone septa have an 11 mm diameter and are preconditioned for use with Agilent split/splitless, programmable temperature vaporizer, and multimode injection inlets. Their formulation limits septum-derived bleed during high-temperature GC and GC/MS methods, helping maintain a cleaner chromatographic baseline. The septa are suitable for inlet temperatures up to 400 °C and support routine replacement during preventive maintenance or after repeated sample injections. Correct septum selection and condition are important for minimizing leaks and maintaining stable carrier-gas flows at the injection port. This package contains 50 BTO septa. It is a smaller-quantity package than the corresponding 100-pack configuration used for higher-throughput laboratories.