Page 15 - CS03_Hudz

 Secondly, our studies demonstrated that the

structure of direct spectra of developed extracts

was very similar. There was no any absorption

maximum.

 The structure of all the differential spectra of

developed extracts was also very similar.

 But there was one divergency in the differential

spectra: an absorption maximum varies in the

range from 406.9 nm to 411.7 nm that indicated

different composition of flavonoids in the extracts.

 Repeatability of the position of the absorption

maximum of the extracts was very good at

carrying out analyses in the different days .