少量試料を用いた清浄な液体中微粒子数の測定

DOI NDLデジタルコレクション Web Site Web Site

書誌事項

タイトル別名
  • Dust counting in clean liquids using small amounts of samples.
  • ショウリョウ シリョウ オ モチイタ セイジョウ ナ エキタイチュウ ビリュウ

この論文をさがす

抄録

The method consists of clean filtration with cleaned nuclepore filter of 20 ml of sample solution, for example, photoresist, gelatin solution for color filter, diluted with cleaned solvent, and counting of stained particles on the filter using an optical microscope in the transmission mode. Viscous samples were diluted with solvent as small amount as possible to the viscosity low eough nfor the following filtration. The gelatin solution had to be hot filtered. As the number of particles found on the filter is extremely small, it is important to clean the filter perfectly before the filtration. It was possible only in the case of polyester nuclepore filter. Differential interference mode and dark field reflection mode observations are not good because the topography of the filter surface is too much emphasized. Particles of ≥0.2 μm can be counted using × 1000 magnitude and the immersion oil. Computer image analysis had a good correlation mith the direct observation by the operator. 2002000 particles per ml were detected in the above mentioned samples, the contribution of the blank being about 20%. All the operations except the microscope observation were carried out carefully in a clean room of class 100.

収録刊行物

  • 分析化学

    分析化学 34 (11), T148-T151, 1985

    公益社団法人 日本分析化学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ