E-Book Overview
This essential on-the-job resource for the analytical chemist has been revised and updated with 40% new material. Readers will find all the conventional wet and instrumental techniques in one exhaustive reference along with all the critical data needed to apply them. Worked examples, troubleshooting tips, and numerous tables and charts are provided for easy access to the data.* The most up-to-date and complete guide to analytical chemistry available today* NEW: 3 major chapters on Analysis of Indoor Air, Analysis of Pesticides, Analysis of Trace Metals
E-Book Content
SECTION 1 PRELIMINARY OPERATIONS OF ANALYSIS 1.1 SAMPLING 1.1.1 Handling the Sample in the Laboratory 1.1.2 Sampling Methodology 1.2 MIXING AND REDUCTION OF SAMPLE VOLUME 1.2.1 Introduction 1.2.2 Coning and Quartering Figure 1.1 Coning Samples Figure 1.2 Quartering Samples 1.2.3 Riffles 1.3 CRUSHING AND GRINDING 1.3.1 Introduction 1.3.2 Pulverizing and Blending Table 1.1 Sample Reduction Equipment Table 1.2 Properties of Grinding Surfaces 1.3.3 Precautions in Grinding Operations 1.4 SCREENING AND BLENDING Table 1.3 U.S. Standard Sieve Series 1.5 MOISTURE AND DRYING 1.5.1 Forms of Water in Solids 1.5.2 Drying Samples Table 1.4 Drying Agents Table 1.5 Solutions for Maintaining Constant Humidity 1.5.3 Drying Collected Crystals Table 1.6 Concentrations of Solutions of H2SO4, NaOH, and CaCl2 Giving Specified Vapor Pressures and Percent Humidities at 25°C 1.5.4 Drying Organic Solvents Table 1.7 Relative Humidity from Wet- and Dry-Bulb Thermometer Readings Table 1.8 Relative Humidity from Dew-Point Readings 1.5.5 Freeze-Drying 1.5.6 Hygroscopic lon-Exchange Membrane 1.5.7 Microwave Drying Table 1.9 Chemical Resistance of a Hygroscopic lon-Exchange Membrane 1.5.8 Critical-Point Drying Table 1.10 Transitional and Intermediate Fluids for Critical-Point Drying 1.5.9 Karl Fischer Method for Moisture Measurement 1.