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RE: How much urine is required for GC/MS?

From: Robert Swotinsky MD
Date: 27 Nov 2005
Time: 13:57:31 -0800
Remote Name: 68.166.234.156

Comments

I believe the volume of urine used to perform a GC/MS analysis is small, on the order of 1 mL. The laboratory will typically require a higher minimum volume, perhaps several mL, to ensure that there is enough urine available for other analyses that may be needed, such as reconfirmation analysis and specimen validity analyses.