Table 10: Abundances ( $[{\rm El./H}]$ ) for the primary and secondary components of AD Boo. N is the number of lines used per ion.
Primary Secondary

Ion [El./H] rms N [El./H] rms N

Ca I +0.22 0.06 4 +0.20 0.23 3

Fe I +0.08 0.15 33 +0.06 0.17 14

Fe II +0.09 0.21 4

Ni I +0.22 0.11 3 +0.16 1

**Table 10:** Abundances ( $[{\rm El./H}]$ ) for the primary and secondary components of AD Boo. N is the number of lines used per ion.
	Primary	Secondary
Ion	[El./H]	rms	N	[El./H]	rms	N
Ca I	+0.22	0.06	4	+0.20	0.23	3
Fe I	+0.08	0.15	33	+0.06	0.17	14
Fe II	+0.09	0.21	4
Ni I	+0.22	0.11	3	+0.16		1

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