2011Restek Presentation-Overviews

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Benzene / Toluene/ Ethanol in
Gasoline
ASTM Method D3606
Present solution is problematic:
Big issues with separations and
peak shapes
Modified ASTM D3606 Method using the
D3606 Column Set
• First part of eluting peaks is sent to the second, highly selective
column, where the alcohols and aromatics are separated
• Higher boiling compounds are back-flushed
• Unique column set, only from Restek
Uses a SET of packed columns:
Material Siltek deactivated SS
ID / OD 2mm / 1/8”
Lengths 6’ and 16’ long
Phases Rtx-1 and proprietary
New D3606 Method
Columns :Rt™-D3606ColumnSet (cat.#83606)
column1 : Rt™-D3606-1:6'x1/8"OD (1.8m x2mm ID), nonpolar Rtx®-1
column2 : Rt™-D3606-2:16'x1/8"OD (4.9m x 2mm ID), proprietarypacking
Injection : 0.05µL,direct injection; Inj. temp. :200°C
Car. Gas : He, constant flow;Flow
Oven :135°C,
Det. : FID, temp.:250°C
Highest possible
resolution!!
Unique Restek solution