Page:NIOSH Manual of Analytical Methods - 7302.pdf/8
ELEMENTS by ICP (Microwave Digestion): METHOD 7302, Issue 1, dated 21 July 2014 - Page 8 of 9
TABLE 3. MEASUREMENT WAVELENGTHS AND RECOVERY DATA [8] Element(1) Wavelength LOD µg/sample (nm)[6] (µg/sample)
Ag Al As B Ba Be Ca Cd Co Cr(2) Cu Fe K Li Mg Mn Mo Na Ni P Pb Pt(2) Sb Se Sn(2) Sr Te(2) Ti Tl V Y(2) Zn(2) Zr
328.1 308.2 193.8 249.7 493.4 313.0 315.9 228.8 228.6 267.7 324.8 259.9 766.5 670.8 279.1 257.6 202.0 589.0 231.6 214.9 220.4 265.9 206.8 196.1 189.9 421.6 214.3 337.3 190.9 292.4 371.0 213.9 339.2
0.1 1 1 0.5 0.06 0.009 2 0.1 0.3 0.4 0.07 2 2 0.03 0.5 0.02 0.2 4 0.2 2 0.6 8 0.4 3 0.8 0.02 2 0.2 0.9 0.1 0.02 0.1 0.06
1.50 7.50 7.50 3.75 0.752 0.076 22.5 1.50 3.75 3.75 0.752 15.0 15.0 0.752 7.50 0.752 2.25 37.5 2.25 15.0 7.50 75.0 7.50 37.5 37.5 3.75 15.0 1.50 7.5 0.752 0.376 1.50 0.750
Lower Level Higher Level % Recovery % RSD µg/sample % Recovery % RSD N=6) (N=6)
95.5 92.7 101 112 104 95.8 107 98.8 99.7 103 98.8 112 98.3 92.4 89.3 86.2 96.8 100 98.3 100 98.9 98.3 94.4 104 105 92.6 90.1 101 103 93.7 107 106 93.1
1.01 0.981 2.22 2.96 3.09 2.36 2.87 3.46 1.72 7.87 3.47 2.43 5.70 2.98 3.52 2.38 5.41 0.823 5.21 5.67 3.94 0.282 3.21 3.21 5.04 2.36 21.8 1.70 4.14 4.74 4.44 13.1 5.35
150 750 750 375 75.2 7.60 2250 150 375 375 75.2 1500 1500 75.2 750 75.2 225 3750 225 1500 750 10000 750 3750 3750 375 1500 150 750 75.2 37.6 150 75.0
99.0 98.7 107 99.5 101 103 99.0 104 104 103 94.2 101 103 98.8 95.1 98.2 103 110 97.7 104 104 95.7 103 106 90.3 97.5 103 98.8 99.3 103 102 97.4 95.4
0.497 0.462 0.340 0.454 0.438 0.714 0.620 0.701 0.566 3.36 0.371 0.263 0.472 0.749 0.309 0.389 0.373 0.457 0.592 0.315 0.570 1.49 0.255 0.270 3.23 0.553 0.614 0.575 0.352 0.341 3.33 3.42 0.971
(1) Values reported were obtained with a Fisons ARL Accuris ICP-AES; performance may vary with instrument and should be independently verified. (2) Values reported were obtained with a Perkin Elmer Optima 3000 DV ICP-AES. Sample concentration was based on Fisons ICP LOD data.
NIOSH Manual of Analytical Methods (NMAM), Fifth Edition