Trace Environmental Quantitative Analysis: Principles, Techniques, and Applications - Chapter 2 potx

... Environmental Quantitative Analysis, Second Edition Recall the definition of a mean: Rearranging in terms of summations gives (2. 25) (2. 26) Upon substituting Equations (2. 25) and (2. 26) into Equation (2. 24), ... response, is defined as (2. 42) V y V N y = σ V xx m i N = − ∑ σ 2 2 V N xx xx y i i N =+ + − − ∑ σ σ σ 2 2 2 2 2 V N xx xx y i i n =++ − −           ∑...

Ngày tải lên: 11/08/2014, 21:21

... States of America on acid-free paper 10 987654 321 International Standard Book Number-10: 0-8 24 7-5 85 3-6 (Hardcover) International Standard Book Number-13: 97 8-0 - 824 7-5 85 3-0 (Hardcover) Library ... 0.19 (0.14–0 .23 ) Monobenzyl phthalate Blood 1 029 µg/L 17.4 (14.1 20 .7) Monobutyl phthalate Blood 1 029 µg/L 26 .7 (23 .9 29 .4) Monoethyl phthalate Blood 1 029 µg/L...

Ngày tải lên: 11/08/2014, 21:21

... methods for trace organics. In Chapter 2, we showed 120 Trace Environmental Quantitative Analysis, Second Edition Matrix solid-phase dispersion 25 1 Solid-phase microextraction (SPME) 25 5 Stir Bar ... (SFE) 20 0 Reversed-phase solid-phase extraction (RP-SPE) 21 1 © 20 06 by Taylor & Francis Group, LLC 130 Trace Environmental Quantitative Analysis, Second Edition es...

Ngày tải lên: 11/08/2014, 21:21

... presence of organic compounds 1, 2- DCA EG Time after injection EG and 1 , 2- DCA σ 2 = kz R z s = ∆ τσ ∆zz∝ σ∝ z © 20 06 by Taylor & Francis Group, LLC 354 Trace Environmental Quantitative Analysis, Second ... FID. 650 600 550 500 450 400 350 300 25 0 20 0 150 100 50 0 1.0 2. 0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12. 0 TP31001B.RAW 1.95 3.39 6.14 6.44 o-xylene 7.67 0.8...

Ngày tải lên: 11/08/2014, 21:21

... Solubility Log(K ow ) Pyrene PY 20 2 C 16 H 10 0.135 5.18 Triphenylene TRP 22 8 C 18 H 12 0.043 5.45 Benz(a)anthracene BaA 22 8 C 18 H 12 0.014 5.91 Chrysene CHR 22 8 C 18 H 12 0.0 02 5.91 PDA Data Control Control Acquisition Link PC © ... Group 10 22 -mL glass headspace vials with PTFE/silicone septa and aluminum crimp-top caps. 1 Crimping tool for headspace vials. 1 0. 5-...

Ngày tải lên: 11/08/2014, 21:21

... Contents 8 .2 Parametric Models 22 0 8 .2. 1 Robust Estimation Methods 22 0 8.3 Robust Methods in Vision 22 1 8.3.1 Recover -and- Select Paradigm 22 1 8.3 .2 Recover -and- Select applied to 22 7 9 Structural ... Recognition 23 7 M. Burge and W. Burger 9.1 2- D and 3-D Structural Features 23 7 9 .2 Feature Selection 23 8 9.3 Matching Structural Descriptions 23 8 9.4 Reducing S...

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Ngày tải lên: 11/08/2014, 09:21

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Ngày tải lên: 11/08/2014, 09:21

... 3 .25 1.54 o-Xylene 3 .26 1.39 0 .25 m-Xylene 8.45 1.44 0 .26 p-Xylene 3 .25 1. 82 0. 32 Ethylbenzene 2. 87 0.55 0.74 TABLE 2. 8 Solubility of BTEX Compounds and MTBE Solubility at 0∞C Solubility at 20 ∞C ... “kinematic TABLE 2. 7 Highly Soluble Components of Gasoline Compound Percent in Gasoline by Weight Benzene 1.94 Toluene 4.73 Ethylbenzene 2. 0 o-Xylene 2. 27 p-Xylene 1. 72...

Ngày tải lên: 11/08/2014, 09:21