Page:NIOSH Manual of Analytical Methods - 7302.pdf/9

 ELEMENTS by ICP (Microwave Digestion): METHOD 7302, Issue 1, dated 21 July 2014 - Page 9 of 9

TABLE 4. PRECISION AND ACCURACY DATA BY ELEMENT [8] Element (µg/sample) Ag Al As Ba Be Ca Cd Co Cr Cu Fe K La Li Mg Mn Mo Ni P Pb Sb Se Sn Sr Te Ti Tl V Y Zn Zr

Range (µg/sample)

Bias

Ŝrt (%)

0.5 to 150 2.5 to 750 2.5 to 750 0.25 to 75.2 0.025 to 7.60 7.43 to 2250 0.50 to 150 1.24 to 375 1.24 to 375 0.248 to 75.2 5.00 to 1500 5.00 to 1500 12.6 to 50.1 0.25 to 75.2 2.5 to 750 0.25 to 75.2 0.75 to 225 0.75 to 225 5.0 to 1500 2.5 to 750 2.5 to 750 12.4 to 3750 12.4 to 3750 1.24 to 375 5.0 to 1500 0.5 to 150 2.5 to 750 0.25 to 75.2 0.12 to 37.6 0.5 to 150 0.25 to 75.0

-0.0175 0.0505 -0.2249 -0.0330 0.0297 -0.0081 -0.0082 -0.0161 -0.0204 0.0160 -0.0039 0.1487 -0.0136 0.2241 0.0180 -0.0348 0.0140 -0.0063 0.0669 -0.0246 0.0172 0.0538 0.0561 -0.0074 0.0161 0.0212 -0.0293 0.0175 -0.0179 0.0075 0.0314

0.668 1.455 0.554 0.920 0.863 0.836 0.729 0.574 0.655 0.984 1.637 1.665 0.920 1.209 0.844 0.865 1.469 0.672 1.212 0.544 0.722 0.758 0.936 0.710 0.892 1.043 0.602 1.223 1.115 1.343 0.980

Accuracy 2.85 7.41 23.40 4.82 4.39 2.18 2.02 2.56 3.12 3.21 3.30 17.61 2.87 24.40 3.19 4.91 3.82 1.73 8.69 3.36 2.91 6.63 7.15 1.90 3.08 3.84 3.92 3.76 3.62 3.02 4.76

NIOSH Manual of Analytical Methods (NMAM), Fifth Edition