Size distribution evaluation of metal in surface water by filtration method

Manabu Igawa, Shin Ogawa, Hiroshi Okochi

Research output: Contribution to journalArticlepeer-review


In the surface water analysis, the existing forms of iron and aluminium are apt to change during the preservation period and the filtration. The sample should be filtered within a day after the sampling and the sample volume should be small to avoid gel layer formation during filtration. Size distribution of metal in surface water was evaluated by filtration method. Sodium, potassium, calcium and magnesium are dissolved predominantly as free ions, whereas aluminium and iron are existing as particulate matters in surface water samples.

Original languageEnglish
Pages (from-to)259-264
Number of pages6
Issue number5
Publication statusPublished - 1993
Externally publishedYes


  • filtration
  • gel layer formation
  • size distribution
  • surface water

ASJC Scopus subject areas

  • Analytical Chemistry


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