Abstract
A micromachined heated chemical reactor is presented. The microreactor consists of a sandwich of glass and silicon chips and contains a reactor channel of 50 μl volume. On-chip heating resistors supply a power of 2 W, resulting in a heating rate of 2°C/s. On-chip measuring resistors enable feed-back control of the temperature. The reactor volume makes the device suitable for derivatisation purposes in HPLC. As an example the pre-column derivatisation of amino acids with NBD-F is demonstrated, requiring 2 min of heating at 60°C, followed by HPLC separation and fluorescence detection.
Original language | English |
---|---|
Pages (from-to) | 265-271 |
Number of pages | 7 |
Journal | Journal of chromatography A |
Volume | 815 |
Issue number | 2 |
DOIs | |
Publication status | Published - 31 Jul 1998 |
Externally published | Yes |
Keywords
- 4-Fluoro-7-nitrobenzofuran
- Amino acids
- Chip technology
- Derivatization, LC
- Micro-total analysis system
- Microreactor
- Sodium azide