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75 ArrangeammomastandardsIIIsamplerIIIorderofdecreaslllgconcentrationofmtrogen Complete loadlllg ofsampler tray with unknown samples 7 6 SWitch sample hne from distilled water to sampler and beglll analysIs 8 Calculations 8 1 Prepare appropnate standard curve denved from processlllg ammoma standards throughmamfold ComputeconcentratIOnofsamplesbycomparlllgsamplepeakheights with standard curve 9 PrecIsion and Accuracy 9 1 In a slllgle laboratory (EMSL), USlllg surface water samples at concentratlOI1S of 1 41, o77,0 59 and 0 43 mg NH3-N/l, the standard deViatIOn was ±O 005 9.2 In a slllgle laboratory (EMSL), USlllg surface water samples at concentrations of0 16 and 1 4 4 m g N H 3- N / l , r e c o v e n e s w e r e 1 0 7 % a n d 9 9 % , r e s p e c t i v e l y BiblIography 1. Hl1ler, A , and Van Slyke, D , "DetermlllatlOn of Ammoma III Blood", J BIOI Chern 102, p 499 (1933) 2. O'Connor, B , Dobbs, R , Vl1hers, B , and Dean, R , "Laboratory Dlst111atlOn of Mumclpal Waste Effiuents", JWPCF 39, R 25 (1967) 3. FlOre, I., and O'Bnen, J E, "Ammoma DetermlllatlOn by Automatic AnalysIs", Wastes Engllleenng 33, p 352 (1962) 4 A wettlllg agent recommended and supphed by the Techmcon CorporatIOn for use III AutoAnalyzers 5. ASTM "Manual on Industnal Water and Industnal Waste Water", 2nd Ed, 1966 prllltlllg, p 418 6. Booth, R L, and Lobnng, L B, "EvaluatIOn ofthe AutoAnalyzer II A Progress Report" III Advances III Automated AnalySIS 1972 Techmcon InternatIOnal Congress, Vol 8, p 7-10, Mediad Incorporated, Tarrytown, N Y , (1973) 7 Standard Methods for the ExamlllatlOn of Water and Wastewater, 14th EditIOn, p 616, Method 604 (1975) 3501-4 , II , ,IPDF Image | Methods for Chemical Analysis of Water and Wastes
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