Gao Shu-peng
2005
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Journal
Journal of Instrumental Analysis
Abstract
The main component of commercial eprinomectin was determined by elemental analysis,13 C NMR,IR,positive and negative ionMS.Ahigh-performance chromatography-electrosprayionization mass spectromˉetry method was developed for the separation and identification of the commercial eprinomectin.Based on the quasi-molecular ion and characteristic UV spectra,five components in commercial eprinomectin were identiˉfied.Its main component is eprinomectin B 1a.