著者

河村 文一 並木 博

出版者

公益社団法人 日本分析化学会

雑誌

分析化学 (ISSN:05251931)

巻号頁・発行日

vol.7, no.4, pp.238-242, 1958-04-05 (Released:2009-06-30)

参考文献数

6

被引用文献数

5 4

---

塩化第一錫を還元剤として使用するモリブデン青法による燐酸根の定量法を検討した.硫酸およびモリブデン酸アンモニウムの濃度の如何は発色にいちじるしい影響をあたえることを認めたので,このことについてはとくに詳細に検討し,両者の濃度変化と発色の関係を図示して発色の領域を定め,これにより定量に最も適する濃度は,硫酸が0.65N,モリブデン酸アンモニウムが0.15%であることを確めた.また,反応温度は45℃以下で行うべきであり,25℃附近における誤差は1℃につき約1%であることを知った.なお,塩化第一錫溶液の添加量の若干の変化は発色の強さに影響しないことを認めた.

著者

並木 博

出版者

日本教育心理学会

雑誌

教育心理学年報 (ISSN:04529650)

巻号頁・発行日

vol.32, pp.117-127, 1993-03-30

著者

並木 博

出版者

一般社団法人 日本教育心理学会

雑誌

教育心理学年報 (ISSN:04529650)

巻号頁・発行日

vol.32, pp.117-127, 1993-03-30 (Released:2012-12-11)

参考文献数

92

被引用文献数

3

著者

鹿毛 雅治 並木 博

出版者

一般社団法人 日本教育心理学会

雑誌

教育心理学研究 (ISSN:00215015)

巻号頁・発行日

vol.38, no.1, pp.36-45, 1990-03-30 (Released:2013-02-19)

参考文献数

16

被引用文献数

11 19

---

The purpose of the present study was to investigate the effects of evaluation structure on children's intrinsic motivation and learning. The following three experimental conditions were set up in terms of the mode of feedback given to the pupils: norm-referenced evaluation, criterion-referenced evaluation, and self-evaluation. Each of the three classes of sixth graders was randomly assigned to one of the experimental conditions. The learning material was composed of several pages of programmed sheets. The pupils were given feedback based on the result of tests corresponding to the three experimental conditions. The dependent variables consisted of several measures of intrinsic motivation obtained from behavioral indicators and questionnaires. Results indicated that higher intrinsic motivation was revealed in the criterion-referenced evaluation group than in the normreferenced evaluation group. And the results of a questionnaire showed that increasing pressure was experienced in the norm-referenced evaluation group relative to the criterion-referenced evaluation group. Furthermore, ATI effect was observed between intelligence and the three conditions when perceived competence was used as a dependent variable.

著者

中村 栄子 石渡 孔実子 並木 博

出版者

公益社団法人日本分析化学会

雑誌

分析化学 (ISSN:05251931)

巻号頁・発行日

vol.39, no.12, pp.845-847, 1990-12-05

被引用文献数

4 5

---

After removal of anionic surfactants by an ion-exchange technique, cationic surfactants were extracted as their chlorides into chloroform. Ion pairs of the cationic surfactants and Disulphine Blue formed in the chloroform phase were measured spectrophotometrically as follows : A 50 ml of a sample solution containing cationic surfactants (above 1μg as Zephiramine) is passed through an anion-exchange column (Amberlite IRA-401,15 ml) at a rate of 1 ml/ min and the column is washed with 50 ml of 50% methanol. Five milliliters of sodium chloride solution (10%) and l0 ml of chloroform are added to the eluate. The mixture is then shaken for 1 min to extract cationic surfactants into chloroform. The chloroform phase is shaken for 1 min with a mixture of 10 ml of citrate buffer solution (0.1 M, pH 5), 5 ml of sodium sulfate solution (0.4 M) and 1.5 ml of Disulphine Blue solution (1.17×10^<-4> M). The absorbance of the chloroform phase is measured at 628 nm. Cationlc surfactants in water above 20 μg/l could be determined by the proposed method.