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SCA-130-509



            ■ Recovery rates with 680°C combustion                           Prepared   Measured    Recovery
            technique                                           Compound      [mg/L]      [mg/L]      [%]
            Compound     Prepared   Measured    Recovery        Urea           200.0      203.0      101.5
                           [mg/L]     [mg/L]       [%]
            Ethanol                                             Urea           2.000      1.986       99.3
                           200.0      201.2       100.6
            2-Propanol                                          Ethylurea      100.0      102.3      102.3
                           50.0        49.8       99.6
            1-Pentanol                                          Thiourea       200.0      201.8      100.9
                           166.2      166.6       100.2
            1-Hexanol                                           Thiourea       2.000      1.973       98.7
                           172.5      173.0       100.3
                                                                Nicotinic      200.0      198.5       99.3
            Dimethyl-      139.5      141.5       101.4         acid
            formamide
                                                                Nicotinic      2.000      1.932       96.6
            Glucose        200.0      200.4       100.2         acid
            Sucrose        200.0      197.5       98,8          Sulfanilic     200.0      199.3       99.7
                                                                acid
            Sucrose        50.0        49.9       99.8
                                                                Sulfanilic     2.000      1.969       98.5
            Sucrose        2.000      1.968       98.4          acid
            Fructose       50.0        49.9       99.8
                                                                Sulfosuccin    52.7       53.0       100.6
            Dodecyl-       55.0        56.0       101.8         ic acid
            benzene
            sulfonic acid                                       Cyanuric       10.10      10.55      104.5
                                                                acid
            L-glutamic     50.0        50.1       100.2
            acid                                                Acryl-         8.36       8.61       103.0
                                                                amide
            Tartaric       50.0        49.8       99.6
            acid                                                Pyridine       200.0      197.1       98.6
                                                                hydro-
            Citric acid    50.0        49.6       99.2          chloride

            Tannine        47.0        47.4       100.9         Pyridine       2.000      1.983       99.2
            Lignin         48.3        47.7       98.8          hydro-
                                                                chloride
            Albumin        44.5        44.1       99.1
                                                                Quinine        200.0      202.3      100.4
            Humic acid     44.7        45.3       101.3         hydro-
                                                                chloric
            Caffeine       50.0        49.5       99.0
                                                                Quinine        2.000      2.008      100.8
            1,10-          50.0        49.7       99.4
            Phenan-                                             hydro-
            throline                                            chloric
            Catechin       50.0        49.1       98.2          Cellulose      100.0      98.6        98.6
                                                                (insoluble)
            1,4-Benzo-     100.0      100.4       100.4
            quinone                                             Poly-          3.00       2.99        99.7
                                                                styrene
            Sodium         100.0       98.3       98.3          (insoluble)
            acetate
            Nicotin-       200.0      198.9       99,5          Note: The recovery rate is effected by sample
            amide                                               preparation, instrument condition and surrounding
                                                                circumstances!
            Nicotin-       100.0      101.3       101.3
            amide

            Nicotin-       2.000      1.993       99.7
            amide
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