Assay Development for Aminoglycosides by HPLC with Direct UV Detection

被引:26
作者
Blanchaert, Bart [1 ]
Huang, Shengyun [1 ]
Wach, Katarzyna [1 ]
Adams, Erwin [1 ]
Van Schepdael, Ann [1 ]
机构
[1] KU Leuven Univ Leuven, Dept Pharmaceut & Pharmacol Sci, Pharmaceut Anal, Herestr 49, B-3000 Leuven, Belgium
关键词
LIQUID-CHROMATOGRAPHIC METHOD; FLUORESCENCE DETECTION; MASS-SPECTROMETRY; AMIKACIN; DERIVATIZATION; TOBRAMYCIN; ANTIBIOTICS; ELECTROPHORESIS; PHARMACEUTICALS; PERFORMANCE;
D O I
10.1093/chromsci/bmw169
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The absence of UV chromophores in the structure of most aminoglycosides impedes an easy and straightforward development of analytical methods. It was demonstrated that addition of borate to the mobile phase allowed direct detection of aminoglycosides at the lower end of the UV spectrum. Although the borate ion complexes preferably with compounds possessing vicinal diols, the aim of this study was to develop an assay for tobramycin that does not contain vicinal diols in its structure. Amikacin, an aminoglycoside with a broad spectrum, was added to the study for its high therapeutic importance. An assay for both has been developed and validated. This method was developed on an XBridge C18 column (4.6 mm x 250 mm; 5 mu m) and the mobile phase consisting of methanol-disodium tetraborate decahydrate buffer (0.1 M; pH = 9.0)-water (20:20:60) supplemented with 1 g/L sodium octanesulfonate was run isocratically at a column temperature of 40 C-omicron. After validation according to International Conference on Harmonization guidelines, this method was tested on two commercially available pharmaceutical formulations, Amukin (R) and Tobrex (R). The developed method was fast, accurate, easy to use and cheap as it did not require sophisticated equipment or tedious derivatization steps.
引用
收藏
页码:197 / 204
页数:8
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