Spectrophotometric determination of manganese(II) with tetrasodium 25, 26,27,28-tetrahydroxycalix[4]arene-5,11,17,23-tetrasulfonate

Nobuhiro Yamamoto, Masashi Nishida, Isao Yoshida, Fumio Sagara, Keihei Ueno, Daido Ishii, Seiji Shinkai

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Complex formation of manganese(II) with tetrasodium 25,26,27,28-tetrahydroxy-calix[4]arene-5,l 1,17,23-tetrasulfonate (CALX-S4) and its application to the spectrophotometric determination of manganese(II) in solution were studied. Manganese(II) reacted with CALX-S4 to form a 1: 1 red-purple complex in aqueous alkaline solution. The color intensity increased with the increase in pH, approaching a maximum at pH 10.4 ~ pH 11.3. The absorption peak appeared at 495 nm, and the molar absorption coefficient was 9.19 × 103 M-1 cm-1 at the peak. This color reaction was highly selective for manganese(II); except for manganese(II), only cerium(III) formed a colored complex with CALX-S4 under the conditions recommended for the determination of manganese(II). Chromium(III) caused negative errors, and a large amount of iron(III) also interfered by forming a colored species. Interferences due to the presence of those ions could be eliminated by removing them as their thiocyanate complexes using a column packed with an anion exchange resin. The proposed (CALX-S4) method was applied successfully to the determination of manganese(II) in an artifical sample solution and in the sludge formed in a tube which was used to pump up ground water.

Original languageEnglish
Pages (from-to)45-50
Number of pages6
Journalbunseki kagaku
Volume43
Issue number1
DOIs
Publication statusPublished - Jan 1 1994
Externally publishedYes

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Manganese
Anion Exchange Resins
Color
Cerium
Chromium
25,26,27,28-tetrahydroxycalix(4)arene
Groundwater
Iron
Pumps
Ions

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

Cite this

Spectrophotometric determination of manganese(II) with tetrasodium 25, 26,27,28-tetrahydroxycalix[4]arene-5,11,17,23-tetrasulfonate. / Yamamoto, Nobuhiro; Nishida, Masashi; Yoshida, Isao; Sagara, Fumio; Ueno, Keihei; Ishii, Daido; Shinkai, Seiji.

In: bunseki kagaku, Vol. 43, No. 1, 01.01.1994, p. 45-50.

Research output: Contribution to journalArticle

Yamamoto, Nobuhiro ; Nishida, Masashi ; Yoshida, Isao ; Sagara, Fumio ; Ueno, Keihei ; Ishii, Daido ; Shinkai, Seiji. / Spectrophotometric determination of manganese(II) with tetrasodium 25, 26,27,28-tetrahydroxycalix[4]arene-5,11,17,23-tetrasulfonate. In: bunseki kagaku. 1994 ; Vol. 43, No. 1. pp. 45-50.
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