Paragraph 5 APPARATUS
5.1
Spectrometer fitted for molecular absorption with cells having a 20 mm optical path and set to a wavelength of 470 nm.
5.2
200 or 250 ml separating funnels.
Spectrometer fitted for molecular absorption with cells having a 20 mm optical path and set to a wavelength of 470 nm.
200 or 250 ml separating funnels.