Details

Autor(en) / Beteiligte

• Yuan, Dong
• Fu, Da You
• Tan, Wen Yuan

Titel

Rapid Determination of Sulfite by Flow Injection Analysis Based on Fuchsin's Addition

Ist Teil von

• Applied Mechanics and Materials, 2013, Vol.295-298, p.950

Ort / Verlag

Zurich: Trans Tech Publications Ltd

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A rapid spectrophotometric method for flow injection determination of sulfite in tan wastewater is described. The proposed method was based on the addition reaction of sulfite with fuchsin in Na2B4O7-NaOH medium. The optimum conditions allow a linear calibration range of 0.01-1.20 μg ml-1 SO32-. The detection limit is 0.0023μg ml-1 (S/N=3), and the relative standard deviation for night replicate measurements is 1.1% for 0.5μg ml-1 of sulfite. The sampling rate is 60 samples h-1. The procedure has been applied to the determination of sulfite in tan wastewater. The results were in good agreement with those obtained by pararosaniline method.