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<br /> <br />METHOD 7740 <br />SELENIUM (ATOMIC ABSORPTION, FURNACE METHODI <br />(Continued) <br />A ~ ( g <br />7.2 Set ~ I 7.5 Analyze by <br />instrument method of <br />parameters. standard <br />addition. <br />7.3 Periodically 7.6 Run check <br />check validity standard after <br />~ <br />of furnace I 10 sample <br />parameters. injections. <br />7.7 Routinely <br />7.4 Inject sample analyze duplicates, <br />into furnace; spiked samples, <br />atomize. and check <br />standards. <br />7 4 Is 7.8 Calculate <br />7.4 Dilute metal <br />concentration Yes sample and concentrations. <br />> hip hest reanalyze. <br />standard? <br />Na <br />Stop <br />B <br />7740 - 8 <br />CD-ROM Revision 0 <br />Date September 1986 <br />