Analyte
Matrix (mg/kg)
No. of laboratories Valid/Outliers
Mean (mg/kg)
Mean recovery (%)
Repatability SD [Sr]
Repatability relative SD [RSDr, %]
Reproducibility SD [SR]
Reproducibility relative SD [RSDR, %]
HorRat
NIV
Wheat (40)
11/1
43.4
108.5
3.3
7.6
5.5
17.1
0.8
Wheat (100)
11/1
111.0
111.0
5.5
4.9
24.3
21.9
1.0
Wheat (1000)
12/0
1014.6
101.5
45.9
4.5
169.1
16.7
1.0
Barley (40)
10/2
50.8
127.0
5.9
11.7
10.3
20.2
0.9
Barley (100)
10/2
118.7
118.7
6.1
5.1
22.0
18.6
0.8
Barley (1000)
10/2
1009.1
100.9
74.6
7.4
119.0
11.8
0.7
DON
Wheat (40)
12/0
37.4
93.5
4.0
10.6
8.0
21.4
1.0
Wheat (100)
12/0
92.4
92.4
5.8
6.3
17.0
18.4
0.8
Wheat (1000)
12/0
955.4
95.5
64.1
6.7
140.7
14.7
0.9
Barley (40)
10/2
39.3
98.3
4.2
10.6
5.3
13.4
0.6
Barley (100)
11/1
96.7
96.7
10.1
10.4
19.3
20.0
0.9
Barley (1000)
12/0
997.6
99.8
85.4
8.6
142.8
14.3
0.9
ZEA
Wheat (8)
12/0
8.5
106.3
0.6
6.8
1.2
14.6
0.7
Wheat (20)
12/0
22.3
111.5
0.9
4.1
3.1
14.0
0.6
Wheat (1000)
12/0
1017.2
101.7
67.2
6.6
119.4
11.7
0.7
Barley (8)
11/1
7.7
96.3
0.5
6.9
1.1
13.7
0.6
Barley (20)
11/1
20.0
100.0
1.8
8.8
2.6
12.9
0.6
Barley (1000)
11/1
1073.6
107.4
58.0
5.4
133.8
12.5
0.8
HT-2
Wheat (8)
11/0*
8.2
102.5
0.7
9.0
2.5
30.5
1.4
Wheat (20)
12/0
20.7
103.5
1.9
9.2
7.5
36.5
1.7
Wheat (200)
11/1
193.4
96.7
13.4
6.9
61.4
31.7
1.6
Barley (8)
11/0*
7.0
87.5
0.9
12.4
2.3
32.2
1.5
Barley (20)
12/0
17.7
88.5
1.7
9.4
4.6
25.9
1.2
Barley (200)
11/1
165.1
82.6
14.4
8.7
39.2
23.7
1.1
T-2
Wheat (8)
12/0
8.3
103.8
0.9
10.9
1.7
20.8
0.9
Wheat (20)
12/0
20.0
100.0
1.2
6.0
4.8
23.7
1.1
Wheat (200)
12/0
198.3
99.2
42.9
21.6
50.7
25.6
1.3
Barley (8)
12/0
7.3
91.3
1.0
14.1
2.6
34.8
1.6
Barley (20)
12/0
17.6
88.0
3.4
19.0
5.9
33.5
1.5
Barley (200)
12/0
179.3
89.7
12.4
6.9
66.0
36.8
1.8
T-2
Naturally contaminated wheat (111)
11/0*
130.4
117.5
7.2
5.5
36.5
28.0
1.3
*One participant did not report the data
Table 5:
Harmonized collaborative validation results of LC-MS/MS determination of NIV, DON, ZEA, HT-2, and T-2 in wheat and barley.
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