Table 1 Different type of SWCNT and their iron content.

From: Iron-related toxicity of single-walled carbon nanotubes and crocidolite fibres in human mesothelial cells investigated by Synchrotron XRF microscopy

Type SWCNT

Diameter

Length

Residual Fe Catalyst

R-SWCNT

~0.8–1.2 nm

~1000 nm

<30 wt%

P-SWCNT

~0.8–1.2 nm

~600 nm

<15 wt%

HP-SWCNT

~0.8–1.2 nm

~200–500 nm

<2 wt%

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