- 作者: Sukumar Chatterjee, Ajai K. Pillai, V. K. Gupta*
- 作者服務機構: School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (Chhattisgarh), 492010, India
- 中文摘要: A highly sensitive spectrophotometric method for the determination of nitrite in water and soil has been developed. The reaction of nitrite with acidified potassium iodide to liberate iodine which oxidizes leucocrystal violet (LCV) to form crystal violet having absorption maxima at 590 nm forms the bases of this method. In aqueous medium the system obeys Beer’s law in the range of 0.1 to 1.0 μg per 25 mL (0.004-0.04 ppm), while in an extractive system the range is 0.025-0.25 μg in 100 mL (0.00025-0.0025 ppm). The molar absorptivity and Sandell’s sensitivity were found to be 1.54 × 106 1 mol-1 cm-1 and 44 pg cm-2, respectively.
- 英文摘要: --
- 中文關鍵字: Spectrophotometric; Leucocrystal violet (LCV); Potassium iodide; Determination of nitrite in water and soil.
- 英文關鍵字: --