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Volume 26, Issue 5
Displaying 1-7 of 7 articles from this issue
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Sigehisa IWAI1997 Volume 26 Issue 5 Pages 275-282
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
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Hiroshi NISHIOKA, Tetsu KUMAGAI, Tohru NAGAHIRO1997 Volume 26 Issue 5 Pages 304-307
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
JOURNAL FREE ACCESSA flow injection method was studied for the determination of ammonium ion in water.
A distilled water is pumped as a carrier stream (1ml/min), into which 100μl of sample solution is injected. 1.2% Sodium hydroxide solution and 4% ethylalcoholic solution of thymol are also pumped (1ml/min respectively), this allows the formation of indophenol type compound in the reaction coil (5m, 85°C) . The absorbance of the compound is measured at 676nm.
Linear calibration curve was obtained (r=0.9997), and the relative standard deviation with ten determinations of 5mg/l of ammonium ion was 0.62%. Routine sampling rate of 60 determi-nations per hour could be achieved with this method.View full abstractDownload PDF (457K) -
Takeshi MATSUNAMI, Kikuji HAMADA1997 Volume 26 Issue 5 Pages 308-313
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
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[in Japanese]1997 Volume 26 Issue 5 Pages 314-318
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
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[in Japanese]1997 Volume 26 Issue 5 Pages 319-320
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
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Yutaka ITAKURA1997 Volume 26 Issue 5 Pages 321-323
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
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Yoshinori ISHIKAWA, Konosuke NISHIDA1997 Volume 26 Issue 5 Pages 324-330
Published: May 30, 1997
Released on J-STAGE: March 18, 2010
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