@article{oai:nipr.repo.nii.ac.jp:00002911,
 author = {クドウ, ヨシユキ and ナカムラ, ヒサミツ and スザワ, タカヨシ and フルヤ, ケイイチ and キクチ, タダシ and カミヤマ, コキチ and ワタナベ, オキツグ and Kudo, Yoshiyuki and Nakamura, Hisamitsu and Suzawa, Takayoshi and Furuya, Keiichi and Kikuchi, Tadashi and Kamiyama, Kokichi and Watanabe, Okitsugu},
 journal = {Polar meteorology and glaciology},
 month = {Nov},
 note = {P(論文), A sample treatment method was established for the SEM-EDX analysis of solid microparticles in an Antarctic ice core. The numbers of contamination-particles all through the processes from cutting the specimen from the stored ice core to SEM observation were investigated. An ice core specimen (63.0g, depth 384.00m-384.11m) obtained from Mizuho ice core (No. 840628,M'-521,depth 383.82m-384.32m) was melted at room temperature on a clean bench; 10.9g of the resulting melt water was filtered with a Nuclepore membrane filter (pore size 0.2μm, diameter 13mm). 115 particles were detected from an optical domain of 520μm×320μm, 1/450 of the effective filtration area, randomly selected under SEM observation with 20000 magnification. A parallel experiment for the background revealed that it included about 4-5 contaminated particles. The average size of particles from the ice core specimen was 1.6μm, and silicate minerals (77%), silica (20%) and other (3%) were classified from the results of EDX analysis. The number of particles in the ice core specimen (Mizuho core at 384m in depth) was estimated as 4700±520/g from the results of parallel experiments using synthesized monodispersed hematite particles.},
 pages = {34--46},
 title = {Evaluation of contamination in preparation of an Antarctic ice core for microparticle analysis with SEM-EDX},
 volume = {14},
 year = {2000}
}