1. Pollard-Knight, D. Technique 2, 1–20 (1990).
2. ECL Technical Manual available on request from Amersham International plc, Amersham, UK (1990).
3. Hashida, S., Imagawa, M., Inoue, S., Ruan, K. & Ishikawa, E. J. appl. Biochem. 6, 56–63 (1984).
4. Renz, M. & Kurz, C. Nucleic Acids Res. 12, 3435–3444 (1984).
5. Pollard-Knight, D. et al. Analyt. Biochem. 185, 84–89 (1990).