细胞动力学研究VII.植物细胞非生长代谢特征

小球藻（Chlorellavulgaris）为绿藻门，卵抱藻科门它是单细胞低等植物，与高等植物细胞的结构及生命活动有许多相似之处，又是一个有机体，可独立生活．因为它繁殖快，又易于控制，为良好的研究材料及宇宙航行的供氧体＊有的可制藻胶，在水体自净中起净化和指示生物的作用．目     

三价铬离子水解聚合作用的研究 VII.反丁烯二酸存在下高铬浓度区水解产物的pqr分析

本文报道用静置平衡pH法研究在较高的铬浓度(CA=0.01, 0.015,0.02mol.dm^-^3)存在下,Cr^3^+在水溶液中的状态,用Newton-Raphson法和非线性Gauss-Newton法进行优化处理,自编成LEMIT程序、用此程序在电子计算机上对铬配合物HPMqAr的组成进行pqr分析,求得粒子的最佳组成为[CrOH]^2^+,[Cr~OH]^5^+,[Cr(OH)A]和[Cr~2(OH)A]^3^+.用此程序同时计算30个数据点,求得各粒子的水解常数,拟合结果良好,说明LEMIT程序能用于复杂体系的计算。     

Studies on the analytical chemistry of iodonium compounds. Part. VII

Summary A procedure is described for the determination of 0.2–3.5 mg of the diphenyliodonium cation by extraction of its hexathiocyanatoferrate(III) Complex from slightly acidic solution into 1,2-dichloroethane. Absorbance measurements are made directly on the organic extract at 485 nm. Beer's law is not obeyed and a calibration curve must be used.

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Zusammenfassung Ein Verfahren für die Bestimmung von 0,2 bis 3,5 mg Diphenyljodoniumkation durch Extraktion seines Hexathiocyanatoferrat(III)-komplexes aus sehwach saurer Lösung mit 1,2-Dichloräthan wurde beschrieben. Die Absorption des organischen Extraktes wurde unmittelbar bei 485 nm gemessen. Das Beersche Gesetz ist nicht anwendbar, weshalb man eine Eichkurve verwenden muß.

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Part VI: Mikrochim. Acta [Wien]1967, 564. The work reported in this paper forms part of a thesis submitted byAnthony J. Bowd to the Faculty of Science of the University of London in partial fulfilment of the requirements for the degree of Doctor of Philosophy.     

Cyclization of ylidenemalononitriles. VII. Studies on sulfur-containing heterocyclic systems

Ring closure of ylidenemalononitrile adducts has been extended to the syntheses of isomeric sulfur heterocycles. The malononitrile derivatives of thiochromanone, thiochromone and iso-thiochromanone have been synthesized, and results of the acidic ring closure experiments on these compounds are reported. The thiochromanone adducts gave an interesting disproportionation reaction, and experiments designed to support the proposed route are presented.