Effects of Flow Rate (1) (FP-2002)

The packed column GPC FP-2002 for organic solvent-based SEC (GPC) uses a newly developed monodispersed particle of styrene divinylbenzene copolymer. It is possible to deliver at a high flow rate (10 mL/min or more) at least four times more when compared to conventional products. When the flow rate dependency of FP-2002 was investigated using phthalate esters and toluene. At the maximum usable flow rate of 20 mL/min, there is no extreme drop in column efficiency.
(Note) In the case of a polymer sample, molecular chain breakage tends to occur as the molecular weight increases. It is recommended to lower the flow rate and analyze if there is a possibility that chain scission has occurred


Sample : 1 % each, 1 mL
1. Ditridecyl phthalate (DTDP) (MW : 530.83)
2. Dimethyl phthalate (DMP) (MW : 194.19)
3. Toluene (MW : 92.14)


Column       : Shodex GPC FP-2002 (20.0 mm I.D. x 600 mm)
Eluent       : CHCl3
Detector     : UV (254 nm)
Column temp. : 30 °C

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