1. S. I. Murav’eva, M. I. Bukovskii, E. K. Prokhorova, et al., Manual on the Monitoring of Harmful Compounds in the Air of Working Areas (Khimiya, Moscow, 1991) [in Russian].
2. Yu. S. Drugov and A. A. Rodin, Sample Preparation in Ecological Analysis: A Practical Guide (Anatoliya, St. Petersburg, 2002) [in Russian].
3. V. M. Ramm, Gas Absorption (Khimiya, Moscow, 1976) [in Russian].
4. J. Novak, V. Vasak, and J. Janak, Anal. Chem. 37, 660 (1965).
5. A. G. Vitenberg, J. Chromatogr. 556, 1 (1991).