Research Article
3-Mercaptopropyltrimethoxysilane Modified Diatomite: Preparation and Application for Voltammetric Determination of Lead (II) and Cadmium (II)
Table 2
The amount of MPTES incorporated into diatomite estimated by TG.
| | | Dried condition | Humid condition | | 100D | 300D | 500D | 700D | 100H | 300H | 500H | 700H |
| | Ignition loss at ca. 100°C (%) | 5.67 | 0.00 | 0.00 | 0.00 | 3.71 | 2.45 | 0 | 0.00 | | Ignition loss at ca. 300°C (%) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.02 | 1.31 | 0.80 | | Ignition loss at ca. 520°C (%) | 5.44 | 3.76 | 2.55 | 1.82 | 6.99 | 5.69 | 1.70 | 0.97 | | Total ignition loss > 100°C (%) | 5.44 | 3.76 | 2.55 | 1.82 | 6.99 | 7.71 | 3.01 | 1.77 |
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