Gas Chromatography Columns for Trace Analyses

Low Bleed, Inert, Durable and Consistent Capillary GC Columns for Trace Analyses All columns in this line will incorporate a combination of unique advances in polymer synthesis, proprietary surface deactivation chemistry, and innovative manufacturing processes. These columns are characterized by low bleed, inertness, durability, and consistency.   Benefits: better signal-to-noise ratio cleaner mass spectra reduced detector contamination sharper peak shape higher maximum temperature quicker baseline stabilization greater column-to-column reproducibility SLB-5ms The low phenyl content provides essentially a boiling point elution order with a slight increase in selectivity, especially for aromatic compounds. The low bleed characteristics, inertness, durable, and consistent nature of SLB-5ms make it the column of choice for US EPA Methodologies such as Semivolatiles by GC-MS and Pesticides/PCBs by GC-ECD. This column meets USP G27 and G36 requirements. Phase: Bonded and highly crosslinked; silphenylene polymer virtually equivalent in polarity to 5% phenyl polymethylsiloxane Operating Conditions: Chemically compatible with water and other injection solvents. Sensitive to strong inorganic acids and bases, stable to low levels of HCl in non-aqueous samples. Not damaged by organic acids or bases. Columns can be rinsed. Temperature Limits: 0.20 to 0.32 mm I.D. columns: -60 °C to 340 °C (isothermal) / 360 °C (programmable)           Length (m) Df (µm) Beta Cat. No. 0.10 mm I.D. Fused Silica   10 0.10 250 28465-U 15 0.10 250 28466-U 0.18 mm I.D. Fused Silica   20 0.18 250 28564-U 12 0.30 150 28566-U 30 0.30 150 28575-U 20 0.36 125 28576-U 0.20 mm I.D. Fused Silica   30 0.20 250 28513-U 0.25 mm I.D. Fused Silica   30 0.10 625 28467-U 15 0.25 250 28469-U 30 0.25 250 28471-U 60 0.25 250 28472-U 15 0.50 125 28577-U 30 0.50 125 28473-U 60 0.50 125 28474-U 30 1.0   63 28476-U 0.32 mm I.D. Fused Silica   15 0.25 320 28557-U 30 0.25 320 28482-U 30 0.32 250 28532-U 15 0.50 160 28597-U 30 0.50 160 28484-U 30 1.0    80 28487-U   Fused Silica Guard Columns For use as guard columns to protect your analytical column from damaging sample components. Match the deactivation of the tubing with the polarity of the injection solvent.   Deactivation Injection Solvents Max. Temp. Non-Polar Alkanes, Carbon disulfide, Ethers 360 °C Intermediate Polarity Acetone, Methylene chloride, Toluene 360 °C Polar Acetonitrile, Methanol, Water 260 °C       Length (m) I.D. Cat. No. Non-Polar Deactivation   3 0.25 25722 5 0.25 25742 3 0.32 25723 5 0.32 25743 Intermediate Polarity Deactivation   3 0.25 25727 5 0.25 25747 3 0.32 25728 5 0.32 25748-U Polar Deactivation   5 0.32 25752-U   Capillary Column Butt Connector and Ferrules This device consists of a double-tapered ferrule and a stainless steel compression housing with a threaded cap. Small and light (2.3 cm x 0.6 cm, 4.4 g with ferrule), it provides a gas tight seal. This unit maintains inertness with no change in column efficiency.   Description Cat. No. Butt connector   Body only (no ferrules included) 23804 Supeltex M-2B Ferrules, pack of 2   To connect 0.10/0.25 mm ID to 0.10/0.25 mm ID 22453 To connect 0.32 mm ID to 0.32 mm ID 22454 To connect 0.53 mm ID to 0.53 mm ID 22591 To connect 0.10/0.25 mm ID to 0.53 mm ID 22455-U To connect 0.32 mm ID to 0.53 mm ID 22586