Analysis of Ethylcellulose Dispersion Type B According to USP-NF Method (KF-802)

According to the United States Pharmacopeia and the National Formulary (USP 43-NF 38*), analysis ethylcellulose in “Ethylcellulose Dispersion Type B” should be carried out with a column filled with L21 packing material and meets following requirements. The GPC KF-802 confirmed the requirements were met.

System suitability requirements:
   Resolution of ethylcellulose and medium-chain triglyceride: ≥ 2.0
   Tailing factor of ethylcellulose: ≤ 2.0
   Relative standard deviation (RSD) : ≤ 5.0 %

*The version at the time of the application acquisition.


Sample : 20 μL
Standard solution
1. Ethylcellulose 3750 mg/L
2. Medium-chain triglyceride 600 mg/L
3. Oleic acid 400 mg/L


Column       : Shodex GPC KF-802 (8.0 mm I.D. x 300 mm)
Eluent       : THF
Flow rate    : 0.5 mL/min
Detector     : RI
Column temp. : 45 °C

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