Spectrophotometric determination of molybdenum with phenylfluorone |
| |
Authors: | M.F. El-Shahat M.Z. Mostafa M. Monshi |
| |
Affiliation: | 1. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt;2. Chemistry Department, College of Science, King Saud University, Riyad, Saudi Arabia |
| |
Abstract: | Spectrophotometric studies on the reaction between molybdenum as molybdate (MoO42?) and phenylfluorone are presented. The reaction conditions are optimized to develop an intense color (molar absorptivity is 3.8 × 103) selective and sensitive for the Spectrophotometric determination of molybdenum. The absorbance is measured at 560 nm, at a pH of 1.5–3. The colored complex is stable for up to 24 hr, Beer's law is obeyed, over the concentration range of 1 to 4 μg/25 ml. The relative standard deviation is 2% and the sensitivity of the method is 1.60 × 10?4 mg/ml. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|