3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
Contents
IX
Polyaromatic Hydrocarbons ........................... .
Inositol Phosphate Esters .............................. .
Carbohydrates ....................................... .
Haloaromatic Hydrocarbons ........................... .
Polychlorinated Biphenyls ............................. .
Optical Whitening Agents ............................. .
74
74
74
75
75
76
3.5
Organometallic Compounds ...................................
76
3.5.1
Lead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76
3.5.2 Mercury. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
77
3.5.3 Tin .................................................
77
3.6 Radioelements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
78
Chapter 4
Marine Sediments .................................... .
4.1
Separation and Fractionation of Sediments from Seawater ......... .
4.1.1
Separation by Filtration ............................... .
4.1.2 Separation by Centrifugation ........................... .
4.1.3 Fractionation by Filtration ............................. .
4.1.4 Fractionation by Column Chromatography ............... .
4.1.5 Fractionation by Chemical Leaching ..................... .
4.1.6 Fractionation by Sedimentation ........................ .
4.1.7 Fractionation by Centrifuging .......................... .
4.1.8 Other Fractionation Methods .......................... .
4.2
Metals
4.2.1
Arsenic ............................................. .
4.2.2 Bismuth ............................................ .
4.2.3
Cadmium ........................................... .
4.2.4 Cobalt and Copper ................................... .
4.2.5 Lead ............................................... .
4.2.6 Mercury ............................................ .
4.2.7 Molybdenum ........................................ .
4.2.8 Copper and Nickel ................................... .
4.2.9 Platinum and Iridium ................................. .
4.2.10 Scandium ........................................... .
4.2.11 Selenium ............................................ .
4.2.12 Silver ............................................... .
4.2.13 Thallium ............................................ .
4.2.14 Zirconium .......................................... .
4.2.15 Multielements ....................................... .
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80
80
81
82
83
88
88
90
90
91
91
91
92
92
92
92
93
93
93
93
94
94
94
94
94
4.3
Non-Metals ................................................. 100
4.3.1
Boron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
4.3.2 Sulphide and Elementary Sulphur ........................ 101
4.3.3
Organic Carbon ....................................... 101
4.4
Organics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102