- Issue 7 Pages 386-
- Issue 6 Pages 327-
- Issue 5 Pages 265-
- Issue 4 Pages 206-
- Issue 3 Pages 154-
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Koji FURUKAWA, Toshiyuki KAWAGUCHI, Kiyonobu KUDO, Tomoko NAKAZAWA, Ry ...2018 Volume 47 Issue 5 Pages 278-285
Published: July 20, 2018
Released on J-STAGE: July 27, 2018
JOURNAL FREE ACCESSIn this study, an analysis was conducted for the simultaneous determination method of aniline and quinoline in drinking water using liquid chromatography/tandem mass spectrometry.
The calibration curves of aniline and quinoline, obtained from the results of the study, demonstrated good linearity in the range of 1.0 to 20 μg/L of aniline standard and in the range of 0.01 to 0.020 μg/L of quinolone standard. The repeatability of repeated measurements of aniline standard solution (0.02 μg/L, n＝5) was observed to be below 0.82％ and the repeatability of repeated measurements of quinoline standard solution (0.02 μg/L, n＝5) was observed to be below 2.7％. In addition, the repeatability (4.8-5.6％), intermediate precision (4.8-12％), and accuracy (98.8-107％) values obtained via recovery tests for aniline and quinoline in drinking water (aniline: 1.0 μg/L, and quinoline: 0.01 μg/L, n＝5, 5days) satisfied the criteria provided in the guidelines for the validation of testing methods for drinking water notified by the Ministry of Health, Labour and Welfare, Japan.
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Ikuo NAKATANI, Kazuhiko TAKEDA, Hiroshi SAKUGAWA2018 Volume 47 Issue 5 Pages 265-272
Published: July 20, 2018
Released on J-STAGE: July 27, 2018
JOURNAL FREE ACCESSThis paper presents general evaluations using government public data, about how CO2 emission reductions expected from the government-subsidized projects contribute to the global warming countermeasures in Japan. It also evaluates how the CO2 reductions of the government-subsidized projects significantly contribute to achieve the total CO2 reduction targets established by the government. It was found that the cost performance from the typical government-subsidized projects is about twice as much as the cost performance of all the government projects, and that the expected CO2 reductions of the government‒subsidized projects contribute enough to achieve the total CO2 reduction targets of the government.
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Hikaru SAWAI, Makoto IKEZAKI, Makoto HANADA, Makoto SAITO, Satoshi MI ...2018 Volume 47 Issue 5 Pages 273-277
Published: July 20, 2018
Released on J-STAGE: July 27, 2018
JOURNAL FREE ACCESS
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