ABSTRACT
This paper first briefly introduces the basic information of aminoglycosides for pharmaceutical use such as origin, classification, chemical structures, diversity of composition and the research originators, etc. Then it reviews the development process of the technologies for the analysis of components of aminoglycosides, discusses the advantages and disadvantages of current methodologies and explains the advantage of liquid chromatography coupled with pulsed amperometric detection method for analysis of the components of aminoglycosides. At last, it introduces some new analysis technologies and ideas and forecasts the direction of future development.
ABSTRACT
Objective To develop a new method for the determination of inorganic sulfide in source water by ion chromatography combined with pulsed amperometric detector.Methods The source water samples were injected into ion chromatography system after being filtrated with 0.22 ?m nylon membrane.100 mmol/L of NaOH-250 mmol/L of the NaOAc-0.5% (V/V) ethylenediamine was used as the eluent,special polarizable anions separation column IonPac 3AS7 was selected and sulfide was separated from other anions by isocratic eluent following by three-waveform pulsed amperometric detection.Results The liner range of determination for sulfide was 5-1 000 ?g/L,the equation of linear regression was y=0.325 4x-1.305 3.The detection limit was 0.5 ?g/L,the recovery rates were in the range of 90.8%-96.7%,and the relative standard deviation was 1.32%.Conclusion The method is simple with good selectivity,high sensitivity and good reproducibility and is applicable to the determination of inorganic sulfide in source water.