Onion skin dyed silk: formic acid extraction  
   
Onin skin dyed silk: HCl extraction  
Peak?identified

Retention?Time (min)

[M-H]- (m/z) Compound  
2

33.8

301.0 Quercetin
3 38.2 285.0+315.0 Kaempferol+ Isorhamnetin
5 29.2 463.0 Quercetin 4'-glucoside

 

 

 

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