Environmental Forensics: Principles and Applications - Chapter 2 pptx

... 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

... CHCl:CCl 2 5.37 Dichlorofluoromethane (Freon- 12) CCl 2 F 2 4.94 Chloroform a CHCl 3 4.88 1,1-Dichloroethane (1,1-DCA) C 2 H 4 Cl 2 4.04 cis-1 , 2- Dichloroethylene CH 2 Cl 2 3.96 trans-1 , 2- Dichloroethylene CH 2 Cl 2 3.96 1,1-Dichloroethylene ... 126 Tetrachloroethylene (PCE) 364 1 , 2- Dibromomethane 92 cis-1 , 2- Dichloroethylene 86 trans-1 , 2- Dichloroethylene 59 1,...

Ngày tải lên: 11/08/2014, 09:21

... <50 108 125 0 1. 02 <50 195 9.390 0. 42 <50 34.8 20 10 0.08 <50 <0. 02 NA a <0.03 NA a 25 5 41,800 411 330,000 318 89,500 341 22 3,000 25 2 22 ,20 0 351 1 92, 000 21 7 11,500 327 98,500 a NA ... HCL to pH 2 Immediately Biological oxygen demand (BOD) Cool, 4∞C 48 hr Chemical oxygen demand (COD) Cool, 4∞C, H 2 SO 4 to pH < ;2 28 d Oil and grease Cool, 4∞C, H...

Ngày tải lên: 11/08/2014, 09:21

... 46:59–71. Jury, W. and K. Roth, 1990. Transfer Functions and Solute Movement through Soil: Theory and Applications, Birkhauser-Verlag, Basel, p. 22 6. Jury, W. and G. Sposito, 1985. Field calibration and validation ... G., and R. White, 1986. A transfer function model of solute transport through soil. 1. Fundamental concepts, Water Resources Research, 22 :24 3 24 7. 20 00 CRC...

Ngày tải lên: 11/08/2014, 09:21

... locations S1-EX3 and S9-EX5 (see 3a) were also omitted. Sample locations located 30 ft to the east (S 5- 5-PL, S 9-7 -PL), however, were projected onto the A-A¢ transect in 3a and incorpo- rated into ... cross-section. In the case of the transect A-A¢ in Figure 6.3(3b), data along the transect that were not used included locations S-EX7 and S 4- 3-PL. Sampling locations within 5...

Ngày tải lên: 11/08/2014, 09:21

... Sorption of 22 2 Rn to the soil is neglected. The one-dimensional advective and dispersive equation for 22 2 Rn transport, 22 2 Rn release from mineral surfaces, and the 22 2 Rn decay and partitioning ... Tertiary-hexyl- Ethyl-tertiary- Tertiary-amyl- Diisopropyl butyl-ether methyl-ether methyl-ether butyl-ether ethyl-ether ether Chemical formula (CH 3 ) 3 COCH 3 (CH 3 ) 2 (C 2...

Ngày tải lên: 11/08/2014, 09:21

... (%) Constance 2 1.39 1.64 0.85 77 10 1.80 1.67 1.08 80 12 1.79 1.05 1.70 82 20 6.70 2. 08 3 .22 91 50 28 .49 0.80 35.61 97 190 59.30 4.53 13.09 94 Schleinsee 1 1.30 2. 51 0. 52 20 3 1.80 2. 20 0. 82 40 5 2. 98 ... exoproteases by Cu 2 ions (43) and inhibition of α-glucosidase, - glucosidase, N-acetyl-glucosaminidase, and alkaline phosphatase by H 2 S in natural waters h...

Ngày tải lên: 11/08/2014, 15:20

... gives (2. 25) (2. 26) Upon substituting Equations (2. 25) and (2. 26) into Equation (2. 24), we arrive at an expression for the least squares slope m in terms of only measurable data points: (2. 27) Defining ... 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 =++ − −           ∑ σ 2 2...

Ngày tải lên: 11/08/2014, 21:21

... deter- minative step. 9 The analytes of interest are the class of chlorophenoxy acid herbicides (CPHs) and include 2, 4-dichlorophenoxyacetic acid (2, 4-D), 2, 4,5-trichlorophe- noxyacetic acid (2, 4,5-T), ... vary in size. C-LLE can be performed using a lighter- than-water extractant or a heavier-than-water extractant. Typical lighter-than-water extractants include various lower-molecul...

Ngày tải lên: 11/08/2014, 21:21

... Chromatography-Mass Spectrometry 423 Principles of the quadrupole 425 Principles of the ion-trap 433 Tuning a quadrupole 436 Principles of Time-of-flight 445 Interpretation 447 Tandem strategies and techniques 449 High ... )! = − = p qq (, 12 == = DCA) 0.9, p(EG) 0.0909 (1 , 2- DCA) 0.1, ((EG) 0.909= f f 12 34 3 34 405 01 029 2 4 , , , ()(.)(.) . ()( − == = DCA EG 00 0909 0 909 0 0 0...

Ngày tải lên: 11/08/2014, 21:21