Zalov, A.Z., Verdizadeh, N.A., Aliyev, S.G. and Mammadova, S.A. 2016. EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF TANTALUM (V) WITH 2-HYDROXYTHIOPHENOL AND ITS DERIVATIVES IN THE PRESENCE OF HYDROPHOBIC AMINES. IJRDO-Journal of Applied Science. 2, 7 (Jul. 2016). DOI:https://doi.org/10.53555/as.v2i7.1278.