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jiangchunyong(½ð±Ò+1): лл 2011-12-31 20:56:07
1.a liner gradient from 28%(V/V) to 54% MeCN in the first 15 min:
time    ÒÒëæ%
0min      28
15min    54

2. A: 0.3% aqueous acetic acid ,V/V£» B£ºMeCN
    5-25min a liner chang from A-B (68:32,V/V) to A-B(50:50,V/V).
time       A%    B%
5min      68     32
25min    50     50
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2Â¥2011-12-31 16:40:19
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