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Split/splitless injection consists of a heated chamber with a glass liner into which the sample is injected through the septum. A microsyringe is used to inject the sample through a rubber septum into a flash vaporizer chamber at the head of the column. The sample vaporizes to form a mixture of carrier gas, vaporized solvent and vaporized analytes. In the split mode, only a proportion of this mixture reaches the column but most exits through the split outlet. This avoids overloading the column. In the splitless mode, the split vent is closed so that the vaporized analyte passes onto the column. This mode is more sensitive and adequate for trace analysis.
|Termination||Cemented Needle (N)|
|Needle Length||2 inch (51 mm)|
|Fluid Path||SST, borosilicate glass, PTFE|
|Pressure||1000 psig (68.9 bar)|
|Maximum Temperature||50°C / 122°F|
|Minimum Temperature||10°C / 50°F|
|Barrel Inner Diameter||0.018 inches (0.460 mm)|
|Barrel Outer Diameter||0.260 inches (6.60 mm)|
|Needle Inner Diameter||0.005 inches (0.13 mm)|
|Needle Outer Diameter||0.0187 inches (0.47 mm)|
|Std Needle Dead Volume||0.64 µL|
|Sales Quantity||1 syringe per pack|