Froudi Jahromi, M. R., Zandifar, S., Bagheri, S., Pour Gholam, R. (2014) ‘Determination of ultra trace amount manganese (II) in water samples with the 1-(2-PyridylAzo)-2-Naphthol, (PAN) by the bromate ion in sulfuric acid with kinetic spectrophotometric method’, Journal of Physical & Theoretical Chemistry, 11(3), pp. 121-128. doi: