by Lai Yuen Kwan. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 41-45). / Abstract --- p.i / Acknowledgement --- p.ii / Contents --- p.iii / List of Figures --- p.vi / List of Tables --- p.vii / Chapter 1. --- INTRODUCTION / Chapter 1.1 --- Air Pollution in Hong Kong --- p.1 / Chapter 1.2 --- Lead in Air and its Harmful Effects on Human --- p.3 / Chapter 1.3 --- Sampling of Air Particulates --- p.6 / Chapter 1.3.1 --- Principles of filter sampling --- p.6 / Chapter 1.3.2 --- Filter media for air sampling --- p.7 / Chapter 1.4 --- Sample Treatment --- p.9 / Chapter 1.4.1 --- Acid digestion - standard method for analysis of metals --- p.9 / Chapter 1.4.2 --- Slurry sampling - direct method for analysis of metals --- p.9 / Chapter 1.4.3 --- Literature survey on slurry sampling --- p.10 / Chapter 1.4.4 --- Comparison between acid digestion and slurry sampling methods --- p.10 / Chapter 1.5 --- Instrumental Analysis --- p.11 / Chapter 1.5.1 --- Graphite furnace atomic absorption spectrometry --- p.11 / Chapter 1.5.2 --- Background correction by the Zeeman effect --- p.12 / Chapter 2. --- EXPERIMENTAL / Chapter 2.1 --- Apparatus --- p.14 / Chapter 2.2 --- Reagents --- p.14 / Chapter 2.3 --- Procedure --- p.15 / Chapter 2.3.1 --- Selection of sample introduction technique --- p.15 / Chapter 2.3.2 --- Recovery study of lead in standard reference material (SRM) in 1-decanol --- p.16 / Chapter 2.3.3 --- Study of suspension behavior of solvents with SRM --- p.16 / Chapter 2.3.4 --- Recovery study of lead in SRM in ethylene glycol --- p.17 / Chapter 2.3.5 --- Determination of lead in SRM by the developed method --- p.17 / Chapter 2.3.6 --- Determination of lead in SRM by the acid digestion method --- p.18 / Chapter 2.3.7 --- Application of the developed method on the analysis of real sample --- p.18 / Chapter 3. --- RESULTS AND DISCUSSION / Chapter 3.1 --- Choice of Solvents for Suspension of Air Particulates --- p.20 / Chapter 3.2 --- Sample Introduction Technique --- p.20 / Chapter 3.3 --- Recovery Study of lead in SRM in 1-Decanol --- p.22 / Chapter 3.3.1 --- Drying stage of the temperature program for analysis --- p.23 / Chapter 3.3.2 --- Effect of 1-decanol on the absorbance signal of the analyte --- p.24 / Chapter 3.3.3 --- Sample injection volume --- p.25 / Chapter 3.3.4 --- Design of temperature program for analysis --- p.25 / Chapter 3.4 --- Study of Suspension Behavior of Solvents --- p.27 / Chapter 3.5 --- Recovery Study of lead in SRM in Ethylene Glycol --- p.32 / Chapter 3.6 --- Evaluation of the Developed Method --- p.33 / Chapter 3.6.1 --- Determination of lead in SRM --- p.33 / Chapter 3.6.2 --- Application of non-linear standard addition method --- p.35 / Chapter 3.6.3 --- precision and accuracy of the developed method --- p.36 / Chapter 3.7 --- Recovery Study with the Acid Digestion Method --- p.36 / Chapter 3.8 --- Analysis of Real Sample by the Developed Method --- p.37 / Chapter 3.8.1 --- Principles of TEOM® on mass measurement --- p.37 / Chapter 3.8.2 --- Selection of filter media for air sampling --- p.37 / Chapter 3.8.3 --- Study of dislodging efficiency of air particulates from Teflon filter --- p.38 / Chapter 3.8.4 --- Comparison with the acid digestion method --- p.39 / Chapter 4. --- CONCLUSION --- p.40 / Chapter 5. --- REFERENCES --- p.41 / Chapter 6. --- APPENDIX --- p.46
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_321877 |
| Date | January 1997 |
| Contributors | Lai, Yuen Kwan., Chinese University of Hong Kong Graduate School. Graduate Board on Environmental Science. |
| Source Sets | The Chinese University of Hong Kong |
| Language | English |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, viii, 51 leaves : ill. ; 30 cm. |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
Page generated in 0.0019 seconds