Analysis of Fluorouracil Injection According to USP-NF Method (SB-802.5 HQ)

The monograph below became official on May 1, 2025.

According to the United States Pharmacopeia and the National Formulary Pharmacopeial Forum (PF 47(3)*), "IMPURITIES: Limit of Urea" for "Fluorouracil Injection" should be carried out with a column filled with L39 packing material. The OHpak SB-802.5 HQ, a column filled with L39 packing material, confirmed the requirements were met.

System suitability requirementsRelative standard deviation (RSD) (Standard solution): ≤ 3.0 %
Tailing factor of urea (Standard solution): ≤ 2.0

*The version at the time of the application acquisition.

Sample: 50 μL
(Standard solution) Urea 0.5 mg/mL in eluent

  1.  
Column
Shodex OHpak SB-802.5 HQ (8.0 mm I.D. x 300 mm)
Eluent
12.7 g/L of sodium nitrate with 0.1%(v/v) of triethylamine in water
Flow rate
0.8 mL/min
Detector
RI (45 ℃)
Column temp.
35 ℃

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