1 0 0 0 OA グリシンに対する次亜塩素酸の作用(第1報)グリシンの分解とクロルシアンの生成
- 著者
- 澤村 良二 櫻井 映子 山本 美枝子 立川 真理子 長谷川 明
- 出版者
- 公益社団法人 日本薬学会
- 雑誌
- 衛生化学 (ISSN:0013273X)
- 巻号頁・発行日
- vol.28, no.5, pp.267-273, 1982-10-30 (Released:2008-05-30)
- 参考文献数
- 17
- 被引用文献数
- 2 3
In the reaction of hypochlorite with amino acids, chloramine is formed at the first stage, and then decarboxylation and oxidation occur. Thus, either corresponding aldehyde and ammonia or corresponding nitrile is formed from amino acids. In the present studies, the products in the reaction mixture of glycine with hypochlorite at neutral condition are determined quantitatively. When the molar ratio of hypochlorite to glycine was less than 1, the residual chlorine and glycine were stable in the reaction mixture ; thus no ammonia and no aldehyde were formed. At the molar ratio ranging from 1 to 3, cyanide and cyanogen chloride were produced. Maximum formation of cyanide was observed at the ratio of about 2, but its yield was only 20% of glycine. When hypochlorite reacted on glycine at the molar ratio of 3, cyanogen chloride was produced in a quantitative yield. Cyanogen chloride was degraded by subsequent addition of excess hypochlorite. From these results, it is concluded that the nitrile formation is a main reaction of glycine with hypochlorite.
1 0 0 0 OA 山梨県東部の地震 (1983年8月8日) に先行した異常な地殻傾斜変化
- 著者
- 佐藤 春夫 立川 真理子 大久保 正
- 出版者
- 公益社団法人 日本地震学会
- 雑誌
- 地震 第2輯 (ISSN:00371114)
- 巻号頁・発行日
- vol.37, no.2, pp.197-205, 1984-06-25 (Released:2010-03-11)
- 参考文献数
- 15
- 被引用文献数
- 2 2
Preceding the eastern Yamanashi earthquake of magnitude 6.0, an anomalous tilt change up to 0.4 micro-radian was detected by the borehole-type tiltmeter at the Enzan station locating 31km north-west of the epicenter. The anomaly began 18 days preceding the earthquake and continued 10 days. The tiltmeter was installed at the bottom of the well of 89m depth. The resolution is 0.006μ radian and the long-term stability is better than a few μ radian per year. This tiltmeter had recorded similar tilt changes of the order of 0.4μ radian twice since it was installed in 1979. Both the changes had been caused by a large amount of precipitation accompanied by typhoons. During these 10 days, however, the maximum daily precipitation was 20mm, temperature change was smaller than 0.05°C at the bottom of the well, and there was no construction near the station. Therefore, we may interpret this anomalous tilt change as a precursor of the earthquake. The station is located in the fracture zone associated with the active fault, the Daibosatsurei-nishigawa fault; core samples obtained from the well were fractured and their P wave velocity was extremely low. The direction of the anomalous tilt vector change is nearly orthogonal to the strike of this active fault. This suggests that the observed upheaval of the epicentral block is the consequence of the hinge movement at the fault.
