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Effects of Flow Rate on Separation (HK-401: PS)

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Polystyrene standards (Mp580) were analyzed using GPC HK-401, an organic SEC (GPC) column for ultra-rapid analysis. Comparing the separation between a HK-401 with a conventional SEC column of equivalent at the flow rate of 1.0 mL/min, HK-401 achieved the same level of separation with 1/6 analysis time. However, when higher separation is desired, use of lower flow rate is recommended.


Sample : 0.5 %, 5 µL
1. Polystyrene (Mp: 580)
2. Propylbenzene


Columns      : Shodex GPC HK-401 (4.6 mm I.D. x 150 mm) x 2
Eluent       : THF
Flow rate    : 1.0 mL/min, 0.6 mL/min, 0.3 mL/min
Detector     : RI (small cell volume)
Column temp. : 30 °C

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