Pioneer Electronic Corporation

Mochida Pharmaceutical Co., Ltd.

Daiso Co., Ltd.

Shuzo Akiyama

Kenichiro Nakashima

Kamon Shirakawa

Kunio Imai

Toshinori Kanamori

Ryuji Murayama

Yasumi Shimizu

Naofumi Sato

Junichi Kadoya

Jun Funaki

Naotaka Kuroda

Yutaka Kamada

A method for the measurement of adenyl group-containing substances which comprises deriving a chemiluminescent substance by allowing a compound to react with adenyl group in a substance to be measured, and qualitatively or quantitatively measuring the substance to be measured using a luminescent intensity obtained from the chemiluminescent substance as a marker.

Method for measuring adenyl group-containing susbstances

An organic electroluminescent device comprises an anode, a positive-hole transport layer of organic compound, an emitting layer of organic compound, and a cathode which are laminated in sequence, wherein the emitting layer comprises a pyrimidopyrimidine derivative. This device emits with a high luminance and high emission efficiency.

Organic electroluminescence device

A packing for use in chromatography which comprises a cyclic amino-substituted silane compound having the formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are the same or different and are each an alkyl having 1 to 5 carbon atoms, an alkoxy having 1 to 3 carbon atoms, hydroxy or a halogen atom in which at least one of R.sup.1, R.sup.2 and R.sup.3 are an alkoxy group or a halogen atom; R.sup.4 is .omega.-piperidino, .omega.-piperazino or .omega.-morpholino group which is optionally substituted by a straight chain or branched chain lower alkyl group; n is an integer of from 2 to 10, said compound being grafted onto an inorganic carrier having hydroxyl group on its surface, and a method for separating water soluble organic compounds by chromatography using said packing.

Packing for chromatography and method for separating water soluble

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Nagasaki, Japan

Shuzo Akiyama