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LC/MS Analysis of Erythromycin Analogs on Ascentis® Express HILIC

LC/MS Analysis of Erythromycin Analogs on Ascentis® Express HILIC application for HPLC

Materials

analytical column

Product No.
Description
Pricing

53981-U

Ascentis® Express HILIC, 2.7 μm HPLC Column

2.7 μm particle size, L × I.D. 15 cm × 4.6 mm

mobile phase component

Product No.
Description
Pricing

70221

Ammonium formate

eluent additive for LC-MS, LiChropur™, ≥99.0%

standard

Product No.
Description
Pricing

E8755

Erythromycin ethyl succinate

45674

Erythromycin

tested according to Ph. Eur.

1242021

Erythromycin C

United States Pharmacopeia (USP) Reference Standard

CONDITIONS

column

Ascentis Express HILlC, 15 cm x 4.6 mm I.D., 2.7 μm particles (53981-U)

mobile phase

[A] 100 mM ammonium formate, pH 3.0 (titrated with formic acid); [B] acetonitrile; (10:90, A:B)

flow rate

1.0 mL/min

pressure

1247 psi (86 bar)

column temp.

35 °C

detector

ESI(+); SIR

injection

5 μL

Description

Analysis Note

This application shows the suitability of Ascentis Express Silica columns for the analysis of erythromycin analogs in aqueous normal phase/HILIC mode of chromatography. Other relatively hydrophobic aminoglycosides have also been shown to separate under these conditions.

Legal Information

Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany

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