Chromatographic Symptoms 3
Troubleshooting 23
Peak Areas Not Repeatable
• Check the ALS syringe operation. (See the Troubleshooting
section of the 7683B Automatic Liquid Sampler Installation,
Operation and Maintenance manual.)
• Replace the syringe.
• Check for leaks in the inlet, liner (as applicable), and column
connection. (See “Checking for Leaks” .)
• Check sample level in vials.
• Run replicates of known standards to verify the problem.
• Consider if this is this first run. (Has the GC stabilized?)
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