Page:NIOSH Manual of Analytical Methods - 7304.pdf/9
ELEMENTS by ICP (Microwave Digestion): METHOD 7304, Issue 1, dated 25 June 2014 - Page 9 of 11
Table 3. MEASUREMENT WAVELENGTHS AND RECOVERY DATA Lower Level(4,5) Element
Wavelength (nm)
LOD (µg/ sample)
µg/ sample
N=
Percent Recovery
Se
196.09
5
75.0
5
102.05
196.02
2
75.0
5
99.93
(1)
Se
(2)
Precision
Precision
µg/ N= sample
Percent Recovery
0.0531
7500
6
111.35
0.0063
0.0051
7500
6
99.72
0.0082
(Sr)
(Sr)
Sn
189.9
75.0
5
30.82
0.0502
7500
6
79.56
0.0124
Sn(2,3)
189.9
0.4
75.0
5
37.87
0.0816
7500
6
92.34
0.0129
Sr
421.55
0.04
7.50
5
100.00
0.0049
750
6
99.54
0.0055
Te
214.27
4
30.0
5
95.80
0.0624
3000
6
110.81
0.0094
Te(2)
214.28
2
30.0
5
97.18
0.0100
3000
6
99.64
0.0074
Ti
337.28
0.2
3.00
5
81.66
0.0392
300
6
103.42
0.0101
Ti
334.94
0.1
3.00
5
82.68
0.0374
300
6
96.13
0.0121
Tl
190.86
2
15.0
5
96.38
0.0605
1500
6
97.25
0.0148
(3)
Tl
190.79
1
15.0
5
97.75
0.0032
1500
6
92.04
0.0119
V
292.40
0.1
1.50
5
104.54
0.0528
150
6
111.15
0.0160
V(2)
292.40
0.09
1.50
5
100.99
0.0146
150
6
99.38
0.0232
Y
371.03
0.07
0.752
5
105.98
0.0245
75.2
6
105.03
0.0073
(3)
Higher Level(5)
Zn
213.85
0.2
3.00
5
110.76
0.0327
300
6
116.84
0.0153
Zn(2)
213.86
0.4
3.00
5
93.45
0.0351
300
6
94.01
0.0055
Zr
339.20
0.2
1.50
5
102.61
0.0242
150
6
101.56
0.0144
(1) Values reported were obtained with a Fisons ARL Accuris ICP-AES unless otherwise noted; performance may vary with instrument and should be independently verified. (2) Values reported were obtained with a Perkin Elmer Optima 3000 DV ICP-AES. (3) Elements that were evaluated and found not suitable for analysis by this method. (4) Values given (lower level) are for the 10xLOQ level due to low recoveries at the 3xLOQ level. (5) LOQ = Estimated limit of quantitation
NIOSH Manual of Analytical Methods (NMAM), Fifth Edition