VF-DA is a unique, guaranteed low-bleed column for forensic drug confirmation testing. The column has high recovery for trace components and excellent resistance to direct methanol injections. Most general screenings for forensic drugs are performed in a variety of matrices, using full-scan GC/MS (EI). Since column bleed can negatively influence detection limits in full-scan mode, the exceptional low bleed of this column is critically important for achieving reduced detection limits, improved accuracy, and a cleaner detector.
Low Bleed GC/MS Columns: • Specially designed wax phase for accurate MS results with polar compounds • Operating temperature range of 20 to 250/260 °C • Improves signal-to-noise ratio for trace analysis • Ideal for GC/MS food, flavor, and fragrance applications, especially where trace analyses are required • Ultra low bleed provides increased sensitivity and extended column lifetime at higher temperatures • Improved performance with no change in the typical selectivity of PEG • 0.15 mm id columns available for high efficiency GC and GC/MS analyses • Tested with the tightest industry QC specifications for column bleed, sensitivity, and efficiency • Performance Summary shipped with each column • Similar phases: SUPELCOWAX 10, SUPEROX II, CB-WAX, Stabilwax, BP-20, 007-CW, Carbowax, Rtx-WAX, ZB-WAX, ZB-WAX plus
Intuvo GC column module (compatible only with the Intuvo 9000 GC System)
Low Bleed GC/MS Columns. VF-Xms is a high arylene modified phase that delivers the ultimate in sensitivity and signal-to-noise ratio, and is the low-bleed, more polar alternative to VF-5ms. Compared to nonpolar “ms”-type phases, VF-Xms provides exceptionally high selectivity for pesticides and delivers high resolution in the shortest analysis time.
EZ-Guard columns combine an Agilent J&W VF column with a built-in guard column. The first 5 or 10 m section of the column (depending on the configuration) is not coated with stationary phase, but has been deactivated. Eliminating the column connection between the guard and analytical sections ensures 100% leak-free performance.
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