101470 Improved method for determination of traces of isocyanates in working atmospheres

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Improved method for determination of traces of isocyanates in working atmospheres

Summary

Type: HPLC
Application #: 101470
Catalog#: 720014.46 - MN HPLC Column, Nucleosil C18, 100A, 5um, 4.6x250mm
Detection: UV 254nm
Conditions: eluent: acetonitrile - water (75:25, v/v), the aqueous phase containing 1% triethylamine and adjusted to pH 3.0 with phosphoric acid,
flow rate 2ml/min,
sample volume 100μl.
Authors: Sangö C
Source: J Liquid Chromatogr 2 (1979) 763 - 774


Details


Legend: Chromatogram of nitro reagent and urea derivatives. A) determination of 2,6-TDI, 2,4-TDI and MDI; isocyanate concentrations: 0.35µg/ml 2,6-TDI, 0.65µg/ml 2,4-TDI and 1.0µg/ml MDI. B) determina