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TABLE 8 <br /> ACCURACY FOR TN 9000a <br /> Standard Arsenic Barium Copper Lead Zinc <br /> Reference <br /> Material Cert. Meas. %Rec. Cert. Meas. %Rec. Cert. Meas. %Rec. Cert. Meas. %Rec. Cert. Meas. %Rec. <br /> Conc. Conc. Conc. Conc. Conc. Conc. Conc. Conc. Conc. Conc. <br /> RTC CRM-021 24.8 ND NA 586 1135 193.5 4792 2908 60.7 144742 149947 103.6 546 224 40.9 <br /> RTC CRM-020 397 429 92.5 22.3 ND NA 753 583 77.4 5195 3444 66.3 3022 3916 129.6 <br /> BCR CRM 143R -- -- -- -- - 131 105 80.5 180 206 114.8 1055 1043 99.0 <br /> BCR CRM 141 -- -- -- -- -- -- 32.6 ND NA 29.4 ND NA 81.3 ND NA <br /> USGS GXR-2 25.0 ND NA 2240 2946 131.5 76.0 106 140.2 690 742 107.6 530 596 112.4 <br /> USGS GXR-6 330 294 88.9 1300 2581 198.5 66.0 ND NA 101 80.9 80.1 118 ND NA <br /> NIST 2711 105 104 99.3 726 801 110.3 114 ND NA 1162 1172 100.9 350 333 94.9 <br /> NIST 2710 626 722 115.4 707 782 110.6 2950 2834 96.1 5532 5420 98.0 6952 6476 93.2 <br /> NIST 2709 17.7 ND NA 968 950 98.1 34.6 ND NA 18.9 ND NA 106 98.5 93.0 <br /> NIST 2704 23.4 ND NA 414 443 107.0 98.6 105 106.2 161 167 103.5 438 427 97.4 <br /> CNRC PACS-1 211 143 67.7 -- 772 NA 452 302 66.9 404 332 82.3 824 611 d4.2 <br /> SARM-51 -- -- -- 335 466 139.1 268 373 139.2 5200 7199 138.4 2200 2676 1 <br /> SARM-52 - -- -- 410 527 128.5 219 193 88.1 1200 1107 92.2 264 215 <br /> Source: Reference 4 <br /> a All concentrations in milligrams per kilogram. <br /> %Rec. Percent recovery. <br /> ND Not detected. <br /> NA Not applicable. <br /> -- No data. <br /> CD-ROM 6200 - 29 Revision 0 <br /> January 1998 <br />