Development and validation of a novel stability-indicating HPLC method for the simultaneous assay of betamethasone-17-valerate, fusidic acid, potassium sorbate, methylparaben and propylparaben in a topical cream preparation.

Development and validation of a novel stability-indicating HPLC method for the simultaneous assay of betamethasone-17-valerate, fusidic acid, potassium sorbate, methylparaben and propylparaben in a topical cream preparation.

Journal of pharmaceutical and biomedical analysis (2014-04-16)

Jonathan Byrne, Trinidad Velasco-Torrijos, Robert Reinhardt

PMID24731970

ABSTRACT

A novel stability-indicating reversed phase high performance liquid chromatographic (RP-HPLC) method for the simultaneous assay of betamethasone-17-valerate, fusidic acid and potassium sorbate as well as methyl- and propylparaben in a topical cream preparation has been developed. A 100mm×3.0mm ID. Ascentis Express C18 column maintained at 30°C and UV detection at 240nm were used. A gradient programme was employed at a flow-rate of 0.75ml/min. Mobile phase A comprised of an 83:17 (v/v) mixture of acetonitrile and methanol and mobile phase B of a 10g/l solution of 85% phosphoric acid in purified water. The method has been validated according to current International Conference on Harmonisation (ICH) guidelines and applied during formulation development and stability studies. The procedure has been shown to be stability-indicating for the topical cream.

MATERIALS

Product Number

Brand

Product Description

574724

Sigma-Aldrich

Acetonitrile solution, contains 0.05 % (v/v) trifluoroacetic acid

574732

Sigma-Aldrich

Acetonitrile solution, contains 0.1 % (v/v) trifluoroacetic acid, suitable for HPLC

612162

Sigma-Aldrich

Phosphoric acid solution, NMR reference standard, 85% in D₂O (99.9 atom % D), NMR tube size 4.2 mm × 8 in. , WGS-5BL Coaxial NMR tube

576956

Sigma-Aldrich

Acetonitrile solution, contains 0.1 % (v/v) formic acid, suitable for HPLC

W290017

Sigma-Aldrich

Phosphoric acid solution, 85 wt. % in H₂O, FCC, FG

359769

Sigma-Aldrich

trans,trans-2,4-Hexadienoic acid potassium salt, ReagentPlus^®, 99%

679186

Sigma-Aldrich

Acetonitrile solution, contains 0.05 % (w/v) ammonium formate, 5 % (v/v) water, 0.1 % (v/v) formic acid, suitable for HPLC

698822

Sigma-Aldrich

Phosphoric acid solution, NMR reference standard, 85% in D₂O (99.9 atom % D), NMR tube size 5 mm × 8 in.

699608

Sigma-Aldrich

Phosphoric acid solution, NMR reference standard, 85% in D₂O (99.9 atom % D), NMR tube size 3 mm × 8 in.

685461

Sigma-Aldrich

Acetonitrile solution, contains 10.0% acetone, 0.05% formic acid, 40.0% 2-propanol

50813-U

Supelco

Ascentis^® Express C18, 2 μm UHPLC Column, 2 μm particle size, L × I.D. 10 cm × 2.1 mm

646377

Sigma-Aldrich

Methanol, HPLC Plus, ≥99.9%

32213

Sigma-Aldrich

Methanol, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8% (GC)

24229

Sigma-Aldrich

Methanol, puriss., meets analytical specification of Ph Eur, ≥99.7% (GC)

19-2400

Sigma-Aldrich

Methanol, SAJ special grade

322415

Sigma-Aldrich

Methanol, anhydrous, 99.8%

19-2420

Sigma-Aldrich

Methanol, SAJ first grade, ≥99.5%

650609

Sigma-Aldrich

Methanol, HPLC Plus, ≥99.9%, poly-coated bottles

270474

Sigma-Aldrich

Methanol, suitable for HPLC, gradient grade, 99.93%

34860

Sigma-Aldrich

Methanol, suitable for HPLC, ≥99.9%

494437

Sigma-Aldrich

Methanol, BioReagent, ≥99.93%

179957

Sigma-Aldrich

Methanol, Laboratory Reagent, ≥99.6%

179337

Sigma-Aldrich

Methanol, ACS reagent, ≥99.8%

676780

Sigma-Aldrich

Methanol, ACS reagent, ≥99.8%

PHR1372

Supelco

Methanol, Pharmaceutical Secondary Standard; Certified Reference Material

19-2410

Sigma-Aldrich

Methanol, JIS special grade, ≥99.8%

19-2470

Sigma-Aldrich

Methanol, suitable for HPLC

717975

Sigma-Aldrich

Methanol, NMR reference standard

19-2450

Sigma-Aldrich

Methanol, JIS 300, ≥99.8%, for residue analysis

320390

Sigma-Aldrich

Methanol, ACS reagent, ≥99.8%