Analysis of Polyethylene Glycol 3350 According to USP-NF Method (SB-802.5 HQ)

According to the United States Pharmacopeia and the National Formulary (USP 40-NF 35*), "ASSAY" for "Polyethylene Glycol 3350" should be carried out with an analytical column and its guard column filled with L25 packing material. OHpak SB-802.5 HQ and OHpak SB-G 6B (guard column) filled with L25 packing material confirmed the requirement was met.

System suitability requirementRelative standard deviation (RSD) (Standard solution): ≤ 1.5%

*The version at the time of the application acquisition. 

Sample: 20 µL
(Standard solution) 20 mg/mL of Polyethylene Glycol 3350 in eluent

  1.  
Column
Shodex OHpak SB-G 6B (6.0 mm I.D. x 50 mm) + SB-802.5 HQ (8.0 mm I.D. x 300 mm)
Eluent
50 µg/mL of NaN3 aq.
Flow rate
0.8 mL/min
Detector
RI (35 ℃)
Column temp.
35 ℃

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