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. 2012 Jun 22;6:61. doi: 10.1186/1752-153X-6-61

Table 1.

Retention time, mass spectral data and concentration of phenolic compounds from green tea extract

Peak nr. Rt(min) [M + H]+(m/z) Compound Concentration mg/ml
1
3.77
335
Galloylquinic acid
6.18
2
4.17
171
Galic acid
0.59
3
6.66
307
Gallocatechin
4.5
4
9.13
307
Epigallocatechin
7.13
5
10.60
340
Dicafeic acid
0.32
6
11.09
291
Catechin
1.59
7
12.08
195
Caffeine
19.16
8
16.02
291
Epicatechin
3.34
9
17.26
459
Epigallocatechingalate
53.18
10
26.42
304
Ellagic acid
0.82
11
27.91
443
Catechingallate
3.29
12 29.45 466 Quercetin glucoside 0.35