Learn More
  • S K Goyal
  • 2001
The para-rosaniline hydrochloride (PRA) dye-based manual method (P. W. West and G. C. Gaeke, Anal. Chem., 1956, 28, 1816) is widely used for sulfur dioxide measurements in the atmosphere, particularly in developing countries. In this investigation, the properties of a less costly, rosaniline hydrochloride (RA) dye were found to be similar to those of the(More)