C-2 Preparing Sample Vials
Preparing vials
For both reference and modifier samples, you must use only closed vials when
placing samples in the heated vial carrier.
Preparing closed vials
Required materials
• Chemical-resistant, powder-free gloves
•Ceramic wafer
• 1.5-mL crimp-top autosampler vials
• Septum caps
• Deactivated fused silica capillary (0.32-mm, 0.25 internal diameter, or
both)
• Vial crimper
• Syringe
To prepare closed vials:
1. Place approximately 100 µL of sample in a crimp-top autosampler vial.
2. Use the vial crimper to secure a septum cap on the vial.
3. Use the ceramic wafer to cut a 1-cm length of deactivated fused silica
capillary.
4. Use the syringe to puncture the septum cap.
5. Insert the 1-cm length of deactivated fused silica capillary through the
hole in the septum cap, leaving a 0.5-cm length protruding from the vial.
Warning: To avoid puncture and laceration injuries, take care
when handling the capillary, which is fragile and easily broken.
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