Inhibitory Action of Artemisia annua Extracts and Artemisinin on the Corrosion of Mild Steel in H₂SO₄ Solution

Table 5

Phytochemical screening of the extracts from A. Annua.

Chemical constituent	Screening
	EEAA	AEAA	TEAA
Alkaloids	+	−	−
Saponins	−	−	−
Flavonoids	++	+	−
Tannins	+	−	+
Glycosides	+	+	+
Anthraquinones	−	−	−

Notes: +: present in the extracts, −: absent in the extracts.