Figure 3From: High spatial resolution analysis of ferromanganese concretions by LA-ICP-MS†Normalised sensitivity ratios [= (SX)SN/(SX.)LA*(SMn+Fe)LA/(SMn+Fe)SN] with (filled squares, solid line) and without (open circles, dotted line) insertion of 200 mg mineral wool in the transport line exiting the ablation cell, sample ablated is the Nod-P1 reference material.Back to article page