Masking effect of potassium iodide on the interferences in the atomic-absorption spectrophotometric determination of antimony utilizing stibine generation by sodium borohydride tablet reduction.

Autor: Yamamoto, Manabu, Shohji, Tadashi, Kumamaru, Takahiro, Yamamoto, Yuroku

Publikováno v: Fresenius' Zeitschrift für Analytische Chemie; 1981, Vol. 305 Issue 1, p11-14, 4p

Axial co-ordination and ion-pair formation for R,S,R,S-1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecanenickel(II) perchlorate in various mixed solvents with nitrobenzene.

Autor: Iwamoto, Etsuro, Yokoyama, Takashi, Yamasaki, Shoji, Yabe, Takashi, Kumamaru, Takahiro, Yamamoto, Yuroku

Publikováno v: Journal of the Chemical Society, Dalton Transactions (1470479X); Jul1988, Issue 7, p1935-1941, 7p

Comparative study of zinc tablet and sodium borohydride tablet reduction systems in the determination of arsenic, antimony, and selenium by atomic-absorption spectrophotometry via their hydrides.

Autor: Yamamoto, Yuroku, Kumamaru, Takahiro

Publikováno v: Fresenius' Zeitschrift für Analytische Chemie; 1976, Vol. 281 Issue 5, p353-359, 7p

Spectrophotometric Determination of Sulfate by Solvent Extraction with Nonionic Surfactant Span 20 and Crystal Violet.

Autor: Sato, Shigeya, Iwamoto, Etsuro, Yamamoto, Yuroku

Publikováno v: Analytical Letters; Jan1981, Vol. 14 Issue 7, p531-534, 4p

Tracer diffusion of the tris(1,10-phenanthroline)iron(II) cation in aqueous salt solutions. Effect of hydrophobic interactions.

Autor: Tominaga, Toshihiro, Matsumoto, Shigetoshi, Koshiba, Takayuki, Yamamoto, Yuroku

Publikováno v: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases; Dec1988, Vol. 84 Issue 12, p4261-4266, 6p