Vol. 9 (1993)

View Vol. 9 (1993)

Published: 1993-05-01

Research Articles

Photochemistry of water soluble phthalocyanines in an ion-exchange polymer blend

Ishmael D. OrdoÃ±ez, Marcus F. Lawrence, Roland CÃ´tÃ©, Cooper H. Langford

1-8
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Synthesis of 4-imidazolidinone by cyclization of gemdimorpholinobisamides

Florentino C. Sumera

9-14
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Purine content of some Philippine foods

Aurea V. Lontoc, Evelyn O. Ladines, Sonia A. Jalandon

15-22
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The extraction and characterization of humic substances from Philippine sources Part 2: Philippine waters and sediments

Elma C. Llaguno, Victoria A. Vicente-Beckett, Elinda Kua, Ma. Elena Cabusas, Rommel Macalalad, Ralph Sabio, James Villanueva, Evangeline Cancio, Aimee Dy, Merle Regino, Ma. Corazon Roque

23-39
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Electrochemical synthesis of electronic and ionic conductive polymer composite polyaniline/PEO network

Florentino C. Sumera, Naoya Ogata

43-51
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Chemistry Education

Low-cost experiments on electrolytic conductivity

Rafael L. Alfonso, Fortunato Sevilla III

73-76
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Water jug experiment: demonstrating thermodynamics and equilibrium principles

Marcelita C. Magno

77-78
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Review Articles

The use of centrifugal partition chromatography in the separation of natural products

Clarita F. Asibal

59-64
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Chemical and microbial decolorization of molasses-derived melandoidin

Ernesto J. Del Rosario

65-72
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