Bulletin of the Society of Sea Water Science, Japan
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
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Volume 48, Issue 4
Displaying 1-7 of 7 articles from this issue
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  • Influences of the Interfering Ions on the Potassium Ion-Exchange Characteristics of Synthetic Fluorine Mica Ion Exchangers
    Development of Potassium Ion-Memorizing Inorganic Ion Exchangers (Part 4)
    Takashi SUZUKI, Takayuki SUZUKI, Shizuo SUGITA, Michihiro MIYAKE, Tosh ...
    1994 Volume 48 Issue 4 Pages 240-247
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.240
    JOURNAL FREE ACCESS
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    Some of synthetic fluorine mica have been known as selective adsorbents for small amount of K+ from aqueous solutions in the presence of a large amount of Na+. Especially, sodium ionexchanged taeniolite, NaMg2LiSi4O10F10·2H2O,(Na+T) shows an excellent selectivity for K+ from seawater. This study reported ion-exchange characteristics of Na+T for Ca2+ and Mg2+, which may interfere the K+ ion-exchange reaction on Na+T in seawater, and for NH4+, which has very similar chemical character to that of K+. The removal behavior of K+ in the presence of these cations was also studied. Na+T selectively took up NH4+, Ca2+, and Mg2+ from mixed aqueouss olution of their chloride and NaCl. The sequence of the selectivity showed K+≥NH4+>Mg2+>Ca2+. There were few influences of the presence of Ca2+ or Mg2+ on the K+ ion-exchange characteristics. The ratio of K+/NH4+ in the ion-exchanged Na+T was the same as that of the aqueous solutions. In conclusion, Na+T can be used as the selective adsorbent for K+ and NH4+ from seawater and living wastewaters.
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  • Determination of Elements in Sea Water and Somatic Fluids of Marine Fish
    Katsumi SAITOH, Hideki SUGIYAMA, Carlos A. STRÜSSMANN, Fumio TAKA ...
    1994 Volume 48 Issue 4 Pages 248-256
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.248
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    This study evaluated the usefulness of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for the determination of elements in sea water and somatic fluids of marine fish. Analyses were performed in sea water from three sampling points in the Japan Sea off Akita Prefecture, in seminal fluid and ovarian fluid of Japanese sandfish (Arctoscopus japonieus) and Chum salmon (Oncorhynchus keta), with the following results: 1. The accuracy of determination of elements by ICP-MS was comparable to that obtained by Absorptiometry and Atomic Absorption Spectrophotometry in spite of the fact that ICP-MS required little pretreatment of the samples. 2. The concentrations of the chief elements (Sodium, Magnesium, Potassium, and Calcium) in sea water were fairly constant between sampling points and agreed with reported values. On the other hand, the concentrations of all minor elements, except thallium, varied remarkably between the points and depths of sampling, suggesting that these elements are more easily affected by factors such as the efHux of continental waters or precipitation. 3. With the exception of lithium, most elements present in sea water were aiso found in the somatic fluids of the two marine fish species, aithough their concentrations varied between species and between the seminal and ovarian fluids of the same species. 4. In conclusion, ICP-MS was found to be a reliable means for the rapid and simultaneous determination of most elements present in sea water and somatic fluid samples down to ppt level. Information on these elements may provide invaluable insight on the chemical characteristics of the various fluids, the occurrence of environmental changes, the ecology of marine animals, and the physiological roles of the elements in somatic fluids.
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  • Corrosion of Materials for Salt Making Plant
    Takeshi FUJITA
    1994 Volume 48 Issue 4 Pages 257-262
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.257
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  • Corrosion Resistance of Stainless Steel for Use as Material in Salt Manufacturing Plant
    Yoshito FUJIWARA
    1994 Volume 48 Issue 4 Pages 263-272
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.263
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  • Anti-Corrosion Properties of Titanium as a Structural Materials Installed in Salt Manufacturing Equipments
    Yasuaki SUGIZAKI, Haruo TOMARI
    1994 Volume 48 Issue 4 Pages 273-280
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.273
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  • Corrosion Tests and Analysis of Corrosion Damages
    Hiroshi IMAGAWA
    1994 Volume 48 Issue 4 Pages 281-293
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.281
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  • The pH of Brine and Mother Liquor in Salt Works, and the pH of Salt
    Masayoshi MURAKAMI
    1994 Volume 48 Issue 4 Pages 294-304
    Published: 1994
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.48.294
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