It seems likely that peroxy nitric acid is formed in polluted urban atmospheres where it is probably a contributor to the oxidizing property of the air and to the other undesirable aspects of the smog. Nitryl chloride forms readily when chlorine atoms are generated in the presence of NO2. The rate of the Cl-NO2 three body reaction in 1atm of air seems to be about one-tenth as fast as the rate of the Cl-HZCO two-body reaction. The nitryl chloride is stable under simulated solar irradiation. Chlorine nitrate was not a product of the reacting mixture of ozone, chlorine atoms, and nitrogen dioxide created in these irradiations, although the reasons for its nonappearance have not been established.
Literature Cited (1) Gay, B. W., Jr., Noonan, R. C., Bufalini, J. J., Hanst, P. L., E n uiron. Sci. Technol., 10,82 (1976). (2) Stephens, E. R., “Advances in Environmental Science and Technology”, J. N. Pitts and R. L. Metcalf, Eds., Vol 1, p 119, Wiley-Interscience, New York, N.Y., 1969. (3) Hanst, P. L., Lefohn, A. S., Gay, B. W., Appl. Spectrosc., 27,188 (1973). (4) Goldman, A., Kyle, T . G., Bonomo, F. S., Appl. Opt., 10, 65 (1971 ). j - _ . -,.
(5) Pierson, R. H., Fletcher, A. N., Gantz, E. S., Anal. Chem., 28,1218 (1956).
(6) Bernitt, D. L., Miller, R. H., Hisatsune, I. C., Spectrochim. Acta, 23A, 237 (1967). (7) Hanst, P. L., in “Advances in Environmental Science and Technology”, J. N. Pitts and R. L. Metcalf, Eds., p 91, Wiley, New York, N.Y., 1971. (8) Hanst, P. L., Stephens, E. R., Scott, W. E., Doerr, R. C., Anal. C h e m , 33,1113 (1961). (9) Hanst, P. L., Wilson, W. E., Patterson, R. K., Gay, B. W., Chaney, L. W., Burton, C. S., “A Spectroscopic Study of California Smog”, Report No. EPA-650/4-75-006, Environmental Protection Agency, Research Triangle Park, N.C., Feb. 1975. (10) Graham, R. A., Tuazon, E. C., Winer, A. M., Pitts, J. N., Jr., Molina, L. T., Beaman, L., Molina, M. J., Geophys. Res. Lett., 4, 3 (1977). (11) Calvert, J. G., Chan, W. H., Niple, E., Nordstrom, R. J., Shaw, J. H., Skinner, W. R., Uselman, W. M., “Application of Fourier Transform Spectroscopy to Air Pollution Problems”, Ohio State Univ. Res. Foundation, R.F. Report 4221-AL, 1976. (12) Niki, H., Maker,P. D., Savage, C. M., Brietenbach, L. B., Chem. Phys. Lett., Sept. 1976. (13) Simonaitis, R., Heicklen, J., J . Phys. Chem., 78,653 (1974). (14) Cox, R. A., Derwent, R. G., J . Photochem., 4,139 (1975). (15) Demerjian, K. L., Kerr, J. A., Calvert, J. G., in “Advances in Environmental Science and Technology”, J. N. Pitts and R. L. Metcalf, Eds., Vol4, p 178, Wiley, New York, N.Y., 1974. (16) Simonaitis, R., Heicklen, J., J . Phys. Chem., 80, l(1976). Receiued for review September 15, 1976. Accepted June 22, 1977. Presented at the Centennial Meeting, ACS, S u n Francisco, Calif., September 1976.
Analysis of Environmental Samples for Organochlorine Insecticides and Related Compounds by High-Resolution Electron Capture Gas Chromatography with Glass Capillary Columns Manabu Suzuki” and Yasuhiro Yamato Kitakyushu Municipal Institute of Environmental Health Sciences, Tobata-ku, Kitakyushu-City, Japan 804
Tadao Watanabe University of Kyushu, Higashi-ku, Fukuoka-City, Japan 8 12
Resolution efficiencies of organochlorine insecticides and their related compounds with wall-coated open tubular (WCOT) and support-coated open tubular (SCOT) glass capillary columns (GCC) were compared with those of conventional packed glass columns (PGC) by use of electron capture gas chromatography. These columns were coated with silicone OV-101 as the liquid phase. Applicabilities of the GCC to environmental samples were investigated. An all-glass system was used to prevent thermal decomposition. The “resolution index” (RI), i.e., peak height/half-width of peak of standard injected, generally increased in the following order, PGC
