Soil and Environmental Analysis: Modern Instrumental Techniques - Chapter 7 pptx

... 200 200 173 0 0.8 25 14 .7 8.2 Cr 200 200 3000 0 .7 6.3 30 .7 6.8 Cu 100 160 1040 0.2 13.9 2.0 7. 0 Ga 100 80 22.1 8.1 11.1 8 .7 2.8 Nb 200 160 29.4 1.0 2.6 10.1 1.5 Ni 100 160 2390 0.3 7. 7 6.8 8.0 Pb ... small diameter (sub-mm for the latest third-generation synchrotrons), it can be used as an ‘‘x-ray fluorescence’’ microprobe. Furthermore, x-ray fluores- cence measurements can be combi...

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... R-PDAH 2 þPADH 2þ 2 þ2Cl À , ,R-HCO 3 þNaHCO 3 R-PDAH 2 þPDAH 2þ 2 þ2C1 À Sample R-HCO 3 þMA! R-H þMA!R-H þMA R-PDAH 2 þMA þ2C1 À ! R-A þMHCO 3 R-M þPDAH 2þ 2 þ2C1 À þA R-A þNaHCO 3 ! R-M þHCl!R-H þMC1 R-M þPDAH 2þ 2 þ2C1 À ! R-HCO 3 þNaA R-PDAH 2 þMC1 2 Suppressor ... R-PDAH 2 þMC1 2 Suppressor column Eluent R-H þMHCO 3 ! R-OH þHCl!R-Cl þH 2 O 2R-OH þPDAH 2þ 2 þ2C1 À ! R-M þH 2 CO 3 2R-C1 þP...

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... U.S.A. tel: 80 0-2 2 8-1 160; fax: 84 5 -7 9 6-1 77 2 Eastern Hemisphere Distribution Marcel Dekker AG, Hutgasse 4, Postfach 812, CH-4001 Basel, Switzerland tel: 4 1-6 1-2 6 0-6 300; fax: 4 1-6 1-2 6 0-6 333 World ... Jean-Marc Bollag and G. Stotzky Soil Biochemistry, Volume 7, edited by G. Stotzky and Jean-Ma~rc Bollag Soil Biochemistry, Volume 8, edited b...

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... optimization criteria are signal-to-background ratio and signal-to-noise ratio. In most instances, however, ICP-AES is used as a multielement tool, and therefore compro- mise operating conditions, ... mass-to-charge ratio. For example, if Cu and Pb are to be Figure 10 Schematic diagram of an ICP-MS instrument. (Reproduced with permission from Sharp, B., in Soil Analysis Modern Instr...

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... 5Â10 7 to 1 Iodide solid-state 5 Â10 À8 to 1 Bromide solid-state 5 Â10 À6 to 1 Lead solid-state 10 À6 to 0.1 Cadmium solid-state 10 7 to 0.1 Nitrate plastic 7 Â10 À6 to 1 Calcium plastic 5 Â10 7 to ... Metrohm Ltd., CH-9101 Herisau, Switzerland. Midgley, D. 1984. Limits of detection of ion-selective electrodes. Anal. Proc. 21:284–2 87. Moody, G.J. and Thomas, J.D.R. 1 972 . Develop...

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... %S 0.8245 2. 67 0. 175 0.033 0.2358 39. 27 3. 67 0.300 0.84 07 2. 67 0. 175 0.034 0.2214 39. 37 3.69 0.289 0.83 87 2.56 0.160 0.030 0.2183 39.21 3 .7 0.289 0.8568 2. 57 0.169 0.033 0.2341 38.91 3. 67 0.289 0.9493 ... Proc. 34:608–610. Tabatabai, M.A. and J. M. Bremner. 1991. Automated instruments for determina- tion of total carbon, nitrogen, and sulfur in soils by combustion t...

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... radionuclides, principally 129 I (Muramatsu and Yoshida, 1995; Parry et al., 1995), 232 Th and 238 U (Edgington, 19 67; Fakhi et al., 1988), and 2 37 Np (Ruf and Friedrich, 1 978 ; Byrne, 1986; May and Pinte, 1986). For ... 4,4 0 (5 0 )-bis-t-butyl- cyclohexano-18-crown-6, a highly selective complexant for Sr 2þ , immobilized on an inert support. The column is washed with 12 column...

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... C., and McDonnell, J.J., eds.). Elsevier, Amsterdam, pp. 87 118. Johnston, A.M., Scrimgeour, C.M., Henry, M.O., and Handley, L.L. 1999. Isolation of NO  3 -N as 1-phenylazo-2-naphthol (Sudan-1) ... (including soil extracts) for 15 N determination. NO  3 is converted to 1-phenylazo-2-naphthol (Sudan-1), and the product is concentrated by reverse-phase chromatography before CF-IRMS. T...

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... S.T. Gower et al. 19 97. A comparison of six methods for measuring soil- surface carbon dioxide fluxes. J. Geophys. Res. 102:28 ,77 1–28 ,77 7. Nouchi, I., T. Hosono, K. Aoki, and K. Minami. 1994. Seasonal ... Nakadai, Y. Bekku, and T. Mela. 1999. Soil respiration in three soil types in agricultural ecosystems in Finland. Acta Agric. Scand. 49B:65 74 . Kru ¨ ger, M., P. Frenzel, and...

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... MacPherson, P.H. Schuepp, and S.B. Verma. 1992. Aircraft- and tower-based fluxes of carbon dioxide, latent, and sensible heat. J. Geophys. Res. 97: 18 477 –18485. Eugster, W. and F. Siegrist. 2000. ... Environ. 34:30 57 30 67. Coe, H. and M.W. Gallagher. 1992. Measurements of dry deposition of NO 2 to a Dutch heathland using the eddy correlation technique. Q. J. Roy. Meteorol. Soc....

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