High spatial resolution analysis of ferromanganese concretions by LA-ICP-MS†

Table 2 Correlation coefficients (R²) and slopes [counts s^-1 (μg g^-1)^-1] of the calibration functions obtained for linear regression analysis of LA-ICP-MS data for pressed concretion tablets (n = 7). 'Min' and 'max' indicate the range of found concentrations (μg g^-1) present in the standards as determined by SN-ICP-MS following acid digestion [9]

Isotope	R ²	Slope	Min	Max
A127^a	0.506	28	14600	44000
As75	0.997	1500	65	800
B11	0.873	820	7.8	95
Bal38	0.857	2900	650	4500
Be9	0.969	390	0.58	2.5
Bi209	0.999	6100	0.04	5.8
Cd111	0.986	380	0.09	23
Cel40	0.965	3100	19	300
Co59^a	0.999	86	50	2300
Csl33	0.958	6000	0.90	4.4
Cu63^a	1.000	37	9.0	11200
Dyl63	0.985	790	1.3	27
Erl67	0.987	700	0.71	14
Eul53	0.994	2300	0.30	7.6
Fe56^a	0.974	92	43600	288000
Ga69^a	0.952	65	3.8	28
Gdl60	0.986	740	1.5	30
Hfl80	0.891	830	0.53	4.2
Ho 165	0.985	3100	0.26	5.0
I127	0.875	3200	29	100
La139	0.944	2200	10	100
Li7	0.998	1300	8.9	140
Lul75	0.979	3200	0.10	1.8
Mg26^a	0.922	6.5	7000	20300
Mn55^a	0.979	115	6400	296000
Mo95	0.994	690	20	760
Na23^a	0.513	57	9600	17100
Nb93	0.936	2600	2.1	21
Ndl46	0.967	580	8.7	130
Ni60^a	1.000	23	42	13500
P31^a	0.988	15	1300	35400
Pb208	1.000	3600	3.9	480
Prl41	0.972	3200	2.3	31
Pt l94	0.787	1100	<0.04	0.12
Rb85	0.829	3000	27	97
Sbl21	1.000	2400	0.24	49
Sc45^a	0.739	52	2.9	9.7
Si28^a	0.518	19	46500	103000
Sml47	0.980	540	1.6	31
Snl20	0.775	2500	0.59	1.9
Sr88	0.877	2600	380	800
Tb l59	0.992	3100	0.21	4.9
Tel 25	0.995	370	0.08	4.8
Th232	0.957	2800	2.1	17
Ti47^a	0.768	4.7	640	2800
T1205	1.000	5300	0.26	210
Tml69	0.965	3400	0.10	1.9
U238	0.992	6000	2.4	18
V51^a	0.655	44	38	510
W184	0.999	1200	2.9	58
Y89	0.978	2200	7.2	90
Ybl71	0.982	520	0.68	13
Zn64^a	0.860	22	45	2000
Zr90	0.962	1200	17	280

ISSN: 1467-4866