Soil and Environmental Analysis: Modern Instrumental Techniques - Chapter 3 pps

... mgL À1 Fe CSV 1-Nitroso-2-naphthol, pH 6.9 À0. 53 60 ng L À1 2 mgL À1 Ni CSV Dimethylglyoxime, pH 8 .3 À1.01 10 ngL À1 60 mgL À1 Pb DP-ASV pH 2.8 with HCl À0.5 30 ngL À1 50 mgL À1 U CSV 8-Hydroxyquinoline, ... limit Al DP-CSV Alizarin Red S, pH 7.1 À1. 13 30 ng L À1 10 mgL À1 Cd þPb DP-ASV pH 2.8 with HCl À0.7 10 ngL À1 50 mgL À1 Co þNi CSV Dimethylglyoxime, pH 8 .3 À1. 13 10 ng L À1 60...

Ngày tải lên: 11/08/2014, 12:21

... nature (for example, 3 H and 14 C) but many are not (examples include 239 Pu, 237 Np, 137 Cs, 125 I, 129 I, 35 S). Figure 1 Isotopes produced by the decay of 238 U. 34 6 Marsden and Livens TM Copyright ... 15:4 23 435 . Beasley, T. M., Cooper, L. W., Grebmeier, J. M., Kilius, L. R. and Synal, H. A. 1997. 36 Cl and 129 I in the Yenisei, Kolyma and Mackenzie rivers. Env...

Ngày tải lên: 11/08/2014, 12:21

... 69: 132 6– 133 0. Grelle, A. and A. Lindroth. 1996. Eddy-correlation system for long-term monitoring of fluxes of heat, water vapor and CO 2 . Glob. Change Biol. 2:297 30 7. Griffith, D.W.T. and B. Galle. ... of NH 3 ,N 2 O and CO 2 using dual beam FTIR spectroscopy and the flux-gradient technique. Atmos. Environ. 34 :1087–1098. Griffith, D.W.T., R. Leuning, O.T. Denmead, and I.M. Ja...

Ngày tải lên: 11/08/2014, 12:21

... Hemisphere Distribution Marcel Dekker AG, Hutgasse 4, Postfach 812, CH-4001 Basel, Switzerland tel: 4 1-6 1-2 6 0-6 30 0; fax: 4 1-6 1-2 6 0-6 33 3 World Wide Web http://www.dekker.com The publisher offers discounts ... Metabolism and Action, edited by M. Daniel and R. P. Purkayastha Soil- Water Interactions: Mechanisms and Applications, Second Edition, Re- vised and E...

Ngày tải lên: 11/08/2014, 12:21

... 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...

Ngày tải lên: 11/08/2014, 12:21

... 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 ... þPDAH 2þ 2 þ2C1 À ! R-HCO 3 þNaA 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 !...

Ngày tải lên: 11/08/2014, 12:21

... 0.175 0. 033 0. 235 8 39 .27 3. 67 0 .30 0 0.8407 2.67 0.175 0. 034 0.2214 39 .37 3. 69 0.289 0. 838 7 2.56 0.160 0. 030 0.21 83 39.21 3. 7 0.289 0.8568 2.57 0.169 0. 033 0. 234 1 38 .91 3. 67 0.289 0.94 93 2.55 0.167 ... 38 .91 3. 67 0.289 0.94 93 2.55 0.167 0. 032 0. 233 0 39 .16 3. 71 0.296 0.8587 2.68 0.176 0. 035 0.2267 38 .96 3. 68 0.286 "  2.62 0.170 0. 033 &quo...

Ngày tải lên: 11/08/2014, 12:21

... 1.0 4.7 2 .3 0.7 Si 1.7 12 6 1.9 K 3. 3 29 14 4 .3 Ti 4.5 48 24 7 Fe 6.4 160 81 24 Cu 8.0 230 120 35 Rb 13. 4 850 430 130 Nb 16.6 137 0 690 210 Sn 25 .3 539 0 2700 810 Ba 32 .2 8870 4440 134 0 Results ... 4.5 35 .2 4 .3 Rb 100 140 298 0.2 5.5 8.2 2.2 Sr 100 80 449 0 .3 3.9 7.9 2 .3 Th 200 100 35 .8 2 .3 3.5 9.2 2.5 V 200 200 655 0.4 3. 9 25.6 2 .3 Y 100 120 85 0.7 2.0 16.5 2.0...

Ngày tải lên: 11/08/2014, 12:21

... 1988. A 3, 800-million-year isotopic record of life from carbon in sedimentary rocks. Nature 33 3 :31 3 31 8. Schnyder, H. 1992. Long-term steady-state labelling of wheat plants by use of natural 13 CO 2 / 12 CO 2 mixtures ...  15 N. Rapid Commun. Mass Spec. 13: 1 531 –1 534 . Johnston, A.M., Scrimgeour, C.M., Kennedy, H.A., and Handley, L.L. 20 03. Isolation of NH 4 þ -N as 1-sulfona...

Ngày tải lên: 11/08/2014, 12:21

... frequency and sampling times on chamber-based measurements of N 2 O emissions from fertilized soils. Glob . Change Biol. 7: 933 –945. Smith, K.A. and C.E. Mullins, eds. 2000. Soil and Environmental Analysis: ... Parton. 1991. Methane and nitrous oxide fluxes in native, fertilized, and cultivated grasslands. Nature 35 0 :33 0 33 2. Mosier, A.R., J.A. Delgado, V.L. Cochran, D.W....

Ngày tải lên: 11/08/2014, 12:21