1. Miltner, R.J., Shukairy, H.M., and Summers, R.S., J. Am. Water Works Assoc., 1992, vol. 84, no. 11, p. 53.
2. Cotsaris, E. and Nicholson, B., Analyst, 1993, vol. 118, p. 265.
3. International Program on Chemical Safety: IPCS Formaldehyde, Concise Int. Chem. Assessment Document no. 40, Genewa: World Health Organization, 2002, p. 75.
4. Kiba, N., Sun, L., Yokose, S., Kazue, M.T., and Suzuki, T.T., Anal. Chim. Acta, 1999, vol. 378, nos. 1–3, p. 169.
5. Safavi, A. and Ensafi, A.A., Anal. Chim. Acta, 1991, vol. 252, nos. 1–2, p. 167.