The BTO septa are uniquely formulated to extend ultra-low bleed characteristics and outstanding mechanical properties. It retains remarkable softness, even at high temperatures, and has been optimized to reduce injection port adhesion, with the addition of a non-stick coating. The pre-pierced BTO septa also benefit from the CenterGuide design. They have a recess on the injection side to help guide the syringe needle to the same point for every injection. The BTO septa are recommended for GC/MS applications.
| Color | Orange |
|---|---|
| Model Compatible With | Clarus 680, Clarus 480, Clarus 590, Clarus 580, Clarus 690 |
| Outer Diameter | 11 mm |
| Product Brand Name | BTO Orange Injection Port Septa |
| Product Group | Injection Port Septa |
| Quantity in a Package Amount | 50.0 |
| Technology Type | CAP injector, PSS injector |
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This technical note outlines the inlet septum replacement procedure for the CAP injector assembly (Item #: N6100007, 120V; N6100137, 230V) for the Clarus® 500/580, & 600/680 GC platforms. The injector assembly is designed for quick access to the inlet septum for routine maintenance and easy integration into daily workflows. Figure 1 provides a diagram of the injector assembly as viewed from the top of the instrument chassis, highlighting placement of the septum cap (Item #: N6100153) containing the septum within.
When compared to the exacting attention that gas chromatographers pay the analytical column, it often seems that the inlet septum receives relatively little consideration. In fact, many chromatographers are surprised to discover that GC instrument manufacturers recommend daily inspection and/or replacement of the inlet septum to maximize instrument performance. Although inexpensive compared to other chromatography consumables, a freshly replaced septum is essential for maintaining system isolation from the outside environment.
A poorly maintained inlet will cause the instrument to suffer from diminished sensitivity, shifting response factors, asymmetrical peak shapes, and an overall poorer precision and accuracy compared to a well-maintained one. When older, damaged septa are cored by the syringe needle these cores of septa can drop into the inlet liner, blocking the flow of gas and releasing bleed volatiles onto the column. Such detriments impact system sensitivity and inevitably result in unscheduled maintenance and more frequent calibrations.
This technical note outlines the inlet septum replacement procedure for the capillary split/splitless (CAP) injector (Item #: N6120146) for the Clarus® 590/690 GC platform.
BTO Orange Injection Port Septa, Pkg. 10
List Price : USD31.0
O-Ring, KALREZ® for Glass CAP Liner (pkg. 1)
List Price : USD53.0
1 mm, PSS Quartz Liner for Splitless Operation
List Price : USD48.0
AutoSystem Autosampler Syringe, Metal Plunger in Barrel with PTFE-Tipped Seal
List Price : USD140.0
KALREZ® O-Ring for Glass PSS Liner
List Price : USD41.0
