Table 1. Total second stage mass spectrum y and meaningful second stage mass spectrum.

Sample	The number of Total second stage mass spectrum	The number of meaningful second stage mass spectrum	Spectrum identification rate
SW480-T	29209	532	1.82%
LOVO-T	29963	346	1.15%
SW480-G	24542	641	2.61%
LOVO-G	27189	467	1.72%