IRMs Mode Spiked sample Control sample (S - C)* Recovery**
Calf Heart (0.170 mg kg-1)
7700x
XSeries 2
iCAP Q
ELEMENT 2		 Std
He
Std
Std
He
MR***
HR 		0.243
0.147
0.645
0.227
0.168
0.184
0.222		 < 0.12
< 0.10
0.509
< 0.12
< 0.10
< 0.10
< 0.10		 0.243
0.147
0.136
0.227
0.168
0.184
0.222		 143%
86%
80%
134%
99%
108%
131%
Bovine kidney (1.26 mg kg-1)
7700x
XSeries 2
iCAP Q
ELEMENT 2		 Std
He
Std
Std
He
MR
HR 		1.34
1.28
2.31
1.34
1.28
1.31
1.80		 0.12
< 0.10
1.19
< 0.12
<0.10
<0.10
<0.10		 1.22
1.28
1.12
1.34
1.32
1.31
1.18		 97%
102%
89%
106%
105%
104%
94%
Calf liver (3.80 mg kg-1)
7700x
XSeries 2
iCAP Q
ELEMENT 2		 Std
He
Std
Std
He
MR
HR 		3.47
3.52
4.22
3.60
3.53
3.64
3.95		 0.20
<0.10
0.89
0.21
0.13
0.19
<0.10		 3.27
3.52
3.32
3.39
3.40
3.44
3.95		 86%
93%
88%
89%
89%
91%
104%
Calf muscle (4.19 mg kg-1)
7700x
XSeries 2
iCAP Q
ELEMENT 2		 Std
He
Std
Std
He
MR
HR 		3.88
3.86
4.40
4.11
4.18
4.06
4.11		 0.12
<0.10
0.52
< 0.12
<0.10
<0.10
<0.10 		3.76
3.86
3.88
4.11
4.18
4.06
4.11		 90%
92%
93%
98%
100%
97%
98%
Calf Brain (7.45 mg kg-1)
7700x
XSeries 2
iCAP Q
ELEMENT 2 		Std
He
Std
Std
He
MR
HR 		7.75
7.38
7.57
7.68
7.74
7.76
8.40 		<0.12
<0.10
0.42
<0.12
<0.10
<0.10
<0.10 		7.75
7.38
7.14
7.68
7.94
7.76
8.40		 104%
100%
96%
103%
107%
104%
113%
*(S-C) is the subtraction of the control from the spiked values. No subtraction made if the Ti concentration in control samples (C) <LOQ

***MR: Medium resolution; HR: High resolution
Table 6: Ti measured in IRMs by four ICP-MS systems (in mg kg-1).