Influence of Digestion Procedure and Residual Carbon on Manganese, Copper, and Zinc Determination in Herbal Matrices by Atomic Absorption Spectrometry

Table 4

ANOVA parameters for metals content in the CRM across all fifteen investigated methods of digestion.

Source of variation	SS	MS		value	Test
Zinc	1148.705	82.050	48.208	1.13·10^−31	1.8259
Copper	30.872	2.205	11.534	1.42·10^−13	1.8259
Manganese	11735.6	838.257	11.974	5.80·10^−14	1.8259