Show simple item record

dc.contributor.authorHigano, Ryoji
dc.date.accessioned2020-02-19T17:16:51Z
dc.date.available2020-02-19T17:16:51Z
dc.date.issued1968
dc.identifier.urihttp://hdl.handle.net/1834/16388
dc.description.abstractThe molybdenum yellow method (Robinson, R. J. and T. G. Thompson, 1948 and Oceanographical Society of Japan, 1963) has been generally applied for silicate analysis of sea water in the serial oceanographic observations in Japan. However, it seems this method has some problems to be solved concerning reagent concentrations and standard solutions. This report is an experimental study on the molybdenum yellow method for the analysis of reactive silicate in sea water. Optical characteristics of the photoelectric colorimeter for silicate analysis and effects of reagent concentration, temperature and salts in sample solution on color development of molybdenum yellow were examined and also difference of absorbancy between sodium silicate standard solution and potassium chromate solution was checked. From these experimental results, it is concluded that some correction must be added as soon as possible to silicate data obtained by a photoelectric colorimeter which was calibrated with potassium chromate solution as the standard.en_US
dc.language.isojaen_US
dc.relation.urihttps://www1.kaiho.mlit.go.jp/GIJUTSUKOKUSAI/KENKYU/report/rhr04/rhr04-03.pdfen_US
dc.titleSome problems on the silicate analysis method for sea water.en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue4en_US
dc.bibliographicCitation.titleReport of Hydrographic and Oceanographic Researchesen_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.21-27en_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:44Z


Files in this item

Thumbnail
Name:
rhr04-03.pdf
Size:
276.4Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record