Or Electrochemistry

(46) What Controls Phytoplankton Production in Nutrient-Rich Areas of the Open Sea? Chisholm, S. W.; Morel, F.M.M., Eds.;. Limnol. Oceanogr. 1991, 36,...
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(46) What Controls Phytoplankton Production con, M. P.; Livingston, H. D.; Casso, in Nutrient-Rich Areas of the Open Sea? S. Α.; Hirschberg, D.; Hartman, M. C; Chisholm, S. W.; Morel, F.M.M., Eds.; Fleer, A. P. Deep-Sea Res. 1992, 39, 1103. Limnol. Oceanogr. 1991, 36, 1507-1965. (62) Chen, J. H.; Edwards, R. L.; Wasser(47) Orians, K. J.; Boyle, Ε. Α.; Bruland, burg, G. J. Earth Planet. Sci. Lett. 1986, K. W. Nature 1990, 348, 322. 80, 241. (48) Boyle, Ε. Α.; Sclater, F. R.; Edmond, (63) Karl, D. M.; Winn, C. D. Environ. Sci. J. M. Earth Planet. Sci. Lett. 1977, 37, 38. Technol. 1991, 25, 1977. (49) Windom, H. L.; Byrd, J. T.; Smith, (64) Wallace, D.W.R.; Wirick, C. D. Na­ R. G.; Huan, F. Environ. Sci. Technol. ture 1992, 356, 694. 1991 25 1137 (65) Goyet, C; Walt, D. R; Brewer, P. G. Deep-Sea Res. 1992, 39, 1015. (50) Cutter, L. S.; Cutter, G. Α.; San Diego-McGlone, M.L.C. Anal. Chem. 1991, (66) Reimers, C. E. Deep-Sea Res. 1987, 34, 63, 1138. 2019. (51) Coale, K. H.; Bruland, K. W. Limnol. (67) Johnson, K. S.; Beehler, C. L.; Saka­ Oceanogr. 1988, 33, 1084. moto-Arnold, C. M. Anal. Chim. Acta 1986, 179, 245. (52) Van Den Berg, C.M.G. In Chemical Oceanography; Riley, J. P., Ed.; Aca­ (68) Johnson, K. S.; Sakamoto-Arnold, demic: London, 1988; Vol. 9, pp. 197C. M.; Beehler, C. L. Deep-Sea Res. 1990, 245. 36, 1407. (53) Donat, J. R.; Bruland, K. W. In Trace (69) Coale, K. H.; Chin, C. S.; Massoth, Metals in Natural Waters; Steinnes, E.; G. J.; Johnson, K. S.; Baker, Ε. Τ. Nature Salbu, B., Eds.; CRC Press: Boca Raton, 1991 352 325 FL, in press; Chapter 12. (70) Jannasch, H. W.; Johnson, K. S. In (54) Gill, G. Α.; Bruland, K. W. Environ. Proceedings of the MarChem '91 Workshop Sci. Technol. 1990, 24, 1392. on Marine Chemistry; Martin, S. J.; Codispoti, L. Α.; Johnson, D. H., Eds.; Office (55) Measures, C. I.; Edmond, J. M. Anal. of Naval Research Report No. OCNR Chem. 1989, 61, 544. 12492-510; Office of Naval Research: (56) Sakamoto-Arnold, C. M.; Johnson, Arlington, VA. K. S. Anal. Chem. 1987, 59, 1789. (57) Chapin, T. P.; Johnson, K. S.; Coale, (71) Dickey, T.; Marra, J.; Granata, T.; Κ. Η. Anal. Chim. Acta 1991, 249, 469. Langdon, C; Hamilton, M.; Wiggert, J.; Siegel D.; Bratkovich, A. / Geophys. Res. (58) Bacon, M. P.; Anderson, R.F. /. Geo1991, 96, 8643. phys. Res. 1982, 37, 2045. (59) Coale, K. H.; Bruland, K. W. Limnol. (72) Global Ocean Flux Study; National Oceanogr. 1987, 32, 189. Academy Press: Washington, DC, 1984. (60) Coale, K. H.; Bruland, K. W. Limnol. (73) Ridge Inter-Disciplinary Global Experi­ Oceanogr. 1985, 30, 22. ments: Initial Science Plan; Ridge Office, University of Washington: Seattle, 1989. (61) Buesseler, K. O.; Cochran, J. K.; Ba­

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The authors in front of the National Science Foundation's research vessel, R/V Point Sur, operated by Moss Landing Marine Laboratories (MLML). Kenneth S. Johnson (left) is professor of chemical oceanography at MLML of the Cali­ fornia State University and a senior scientist at the Monterey Bay Aquarium Research In­ stitute (MBARI). He received his B.S. degrees in chemistry and oceanography from the University of Washington in 1975 and a Ph.D. in oceanography from Oregon State Uni­ versity in 1979. His research interests include the development of automated methods for shipboard and in situ trace chemical analysis and application of these systems to the study of chemical cycling in the ocean. Kenneth H. Coale (center) is a research scientist and adjunct professor at MLML. He received his B.S. degree and his Ph.D. (1988) from the University of California, Santa Cruz. His research interests include trace element biogeochemistry in marine and fresh­ water systems, the application of naturally occurring U/Th series radionuclides to study chemical cycling and age dating of marine specimens, and the development of analytical methods for shipboard and in situ determination of trace metals in seawater. Hans W. Jannasch (right) is an assistant scientist at MBARI. Before his joint postdoc at MBARI and MLML, he received his Sc.B. degree in chemistry from Brown University in 1978 and a Ph.D. in chemical oceanography from the University of Washington in 1990. His research interests include trace metal scavenging, behavior ofmarine particles, and the development of in situ chemical instrumentation.

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ANALYTICAL CHEMISTRY, VOL. 64, NO. 22, NOVEMBER 15, 1992 · 1075 A