The Chemical Analysis of Fresh Water (Third Edition)

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Table of Contents

• The Chemical Analysis of Fresh Water 1
• The Chemical Analysis of Fresh Water 2
• Abstract 5
• Table of Contents 6
• 1.0 Introduction 7
• 2.0 Labware Cleaning 9
• 3.0 Labware Calibration and Verification 12
• 4.0 Reference Sample Preparation 20
• HOT 20
• 5.0 Laboratory Information Management System Sample Master 30
• Note 35
• Note 35
• Example 37
• 6.0 Sample Preparation and Filtration 41
• HOT 42
• 7.0 Outsourced Analyses 53
• 8.0 Dissolved Oxygen 59
• Never pour water into acid. 60
• Note 61
• Note 64
• Note 64
• Note 65
• Note 65
• Note 65
• Note 65
• 9.0 Specific Conductance 75
• Note 79
• 10.0 Hydrogen Ion Concentration pH 86
• Note 91
• 11.0 Dissolved Inorganic Carbon 97
• Caution 100
• The sparging column can only handle a maximum cumulative volume of 2.0 mL of liquid. 102
• 12.0 Dissolved Organic Carbon Non- Purgative Organic Carbon NPOC 106
• Do not use parafilm to 112
• Note 116
• Note Do not shut down the instrument using the power button on the Shimadzu TOC-VCPH TNM-1 instrument. 117
• Note 119
• Briefly 119
• Immediately 119
• Note 119
• 13.0 Absorbance Scan 127
• Note 131
• 14.0 Nitrite Nitrate and Ammonia Colourimetric method 134
• Never pour water into acid. 134
• Note 140
• Note 141
• Note 144
• Note 146
• Note 146
• Note 147
• 15.0 Total Dissolved Nitrogen UV oxidation and colourimetry method 165
• Never pour water into acid. 165
• Caution This is a dangerous oxidant. 168
• Note 170
• Note 170
• Note 173
• Caution 174
• Note 174
• Note 177
• Note 177
• Note 178
• 16.0 Total Dissolved Phosphorus 192
• Never pour water into acid. 192
• Caution This is a dangerous oxidant. 195
• Caution 196
• Caution 196
• Note 199
• Note 199
• Do not add mixed molybdate to the urea sample. 200
• 17.0 Particulate Phosphorus 211
• HOT 211
• Never pour water into acid. 211
• Caution 214
• Slowly 214
• Caution. 218
• Note HOT 218
• 18.0 Soluble Reactive Silicon Spectrophotometric method 229
• Never pour water into acid. 229
• 19.0 Particulate Iron 245
• Never pour water into acid. 245
• Add 80 mL of Milli-Q water to your volumetric flasks before you add the acid. 248
• Add 80 mL of ultrapure water to your volumetric flask before you add the acid. 248
• 20.0 Chlorophyll- a Gross fluorescence method 256
• Do not use plastic pipette tips as they are wetted with solvent and do not deliver accurate volumes. 260
• Note 261
• Note 262