Method development for the determination of elements in Hypericum perforatum L. (St John's wort) herb and preparations using inductively coupled plasma-optical emission spectroscopy and microwave digestion.
Jade D OwenSara J EvansAmira GuirguisKathryn KellettJacqueline L StairPublished in: The Journal of pharmacy and pharmacology (2017)
Therefore, this paper presents the development and optimized method parameters to be used with ICP-OES that will allow the analysis of 11 key elements present in St John's wort herb and preparations.
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