Features of RSpak DE Series (3) (Effects of Eluent pH on Analysis Result)

RSpak DE series is stable in wide eluent pH range.


Sample : 10 μL
1. Theobromine
2. Theophylline
3. Caffeine


Column       : Shodex RSpak DE-413 (4.6 mm I.D. x 150 mm) 
Eluent       : 10 mM Sodium phosphate buffer/CH3CN=82/18
Flow rate    : 0.6 mL/min 
Detector     : UV (254 nm) 
Column temp. : 40 °C

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Operation Manual / Certificate of Analysis

Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.

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Applications (Related Information)