Modern Analytical Cheymistry - Chapter 12 pdf

... interferent. 1400-CH12 9/8/99 4:28 PM Page 545 550 Modern Analytical Chemistry From equation 12. 1 it is clear that resolution may be improved either by in- creasing ∆t r or by decreasing w A or w B (Figure 12. 9). ... resolved on a particular column (n c ). 1400-CH12 9/8/99 4:28 PM Page 554 544 Modern Analytical Chemistry 12A Overview of Analytical Separations In Chapter 7 we e...

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... preserved by controlling the solu- 194 Modern Analytical Chemistry 1400-CH07 9/8/99 4:03 PM Page 194 Colorplate 4 shows an example of a liquid–liquid extraction. 218 Modern Analytical Chemistry (b) The ... polymeric resins of 2,4-diphenyl-p-phenylene oxide or styrene-divinylbenzene for volatile compounds, or polyurethane foam for semivolatile compounds. These materials have a low aff...

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... 12. 12 70.00 12. 22 75.00 12. 30 80.00 12. 36 85.00 12. 41 90.00 12. 46 95.00 12. 49 100.00 12. 52 Figure 9.6 Titration curve for 50.0 mL of 0.100 M acetic acid (pK a = 4.76) with 0.100 M NaOH. 1400-CH09 ... 2.08 24.00 2.57 25.00 7.00 26.00 11.42 28.00 11.89 30.00 12. 50 35.00 12. 37 40.00 12. 52 45.00 12. 62 50.00 12. 70 1400-CH09 9/9/99 2 :12 PM Page 281 Chapter 9 Titrimetri...

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... Method 607 12J.5 Evaluation 609 12K Key Terms 609 12L Summary 610 12M Suggested Experiments 610 12N Problems 615 viii Modern Analytical Chemistry 12O Suggested Readings 620 12P References 620 Chapter ... HPLC 584 12E.7 Quantitative Applications 586 12E.8 Representative Method 588 12E.9 Evaluation 589 12F Liquid–Solid Adsorption Chromatography 590 12G Ion-Exchange Chromatography 590 12H...

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... × == 14 Modern Analytical Chemistry 1400-CH02 9/8/99 3:48 PM Page 14 20 Modern Analytical Chemistry 0 .12 0.10 0.08 0.06 0.04 0.02 0.00 [H + ] (M) Volume NaOH (mL) 0 204060 [H + ] pH 80 pH 14 12 10 8 6 4 2 0 Figure ... solute per unit volume or unit mass of solution. 1400-CH02 9/8/99 3:48 PM Page 15 12 Modern Analytical Chemistry 2A Numbers in Analytical Chemistry Analyti...

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... Part I-Talanta, 1970, 17, 21–29; Part II-Talanta, 1970, 17, 31–44; Part III-Talanta, 1973, 20, 725–732; Part IV- Talanta, 1974, 21, 1109– 1121 . Several texts provide numerous examples of analytical ... a new method to those ob- tained using a method of known accuracy. Chapter 14 provides a more detailed dis- cussion of validation techniques. Chapter 3 The Language of Analytical Chemi...

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... 10-mL pipet for de- livering solutions. A pipet’s uncertainty is the range of volumes in which its true volume is expected to lie. Sup- pose you purchase a 10-mL class A pipet from a labora- tory ... use a 25-mL pipet four times; or (c) use a 10-mL pipet ten times? 11. A solution can be diluted by a factor of 200 using readily available pipets (1-mL to 100-mL) and volumetric flasks (10-mL to...

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... 500 0 965 s r == 0 6 512 62 0 4035 . – . 122 Modern Analytical Chemistry 1400-CH05 9/8/99 3:59 PM Page 122 Equations for calculating confidence intervals for the slope, the y-intercept, and the ... dilution. 114 Modern Analytical Chemistry V S S spiked x -intercept = (a) – C A V o C S y -intercept = kC A V o V f Slope = kC S V f S spiked x -intercept = (b) – C A V o V f y -inter...

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... potential under standard-state conditions. Dividing through by –nF leads to the well-known Nernst equation. 146 Modern Analytical Chemistry *Separating a redox reaction into its half-reactions is useful ... 10 14 6 9 14 3 12 == × × =× == × × =× + []. . –– HO 3 14 7 1 00 10 1 00 10 + =×=× *The use of a p-function to express a concentration is covered in Chapter 2. Gastric juice 1 2 3...

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... analysis, a 127 .3-mg sample of an alloy containing iron, manganese, and other metals was dissolved in acid and 268 Modern Analytical Chemistry 268 Modern Analytical Chemistry 1400-CH08 9/9/99 ... NO) 23 23 96 3 96 3 23 96 3 23 96 3 96 3 96 3 252 Modern Analytical Chemistry 1400-CH08 9/9/99 2:18 PM Page 252 262 Modern Analytical Chemistry EXAMPLE 8. 7 A 26.23-mg sample of MgC...

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