Analysis of Alendronate Sodium Injection According to JP Method (DS-613)

Alendronic acid is widely used for the treatment of osteoporosis. According to the Japanese Pharmacopoeia (JP XVII*), “Assay" for “Alendronate Sodium Injection" should be carried out with a column filled with styrene divinylbenzene copolymer. The RSpak DS-613 confirmed the requirements were met.

System suitability requirementsTheoretical plate number of the peak of alendronic acid (Standard solution): ≥ 1,500
Symmetry factor of the peak of alendronic acid (Standard solution): ≤ 1.5
Relative standard deviation (RSD) of the peak of alendronic acid (Standard solution): ≤ 1.0% (repeated 6 times)

*The version at the time of the application acquisition.

Sample: 50 µL
(Standard solution) prepared according to JP method

  1. 1.Alendronic acid (FMOC-Alendronic acid)
Column
Shodex RSpak DS-613 (6.0 mm I.D. x 150 mm)
Eluent
50 mM Trisodium citrate + 50 mM K2HPO4 aq. (adjusted to pH8.0 with H3PO4)/CH3CN/CH3OH=75/20/5
Flow rate
0.9 mL/min
Detector
UV (265 nm)
Column temp.
40 ℃

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