Citation: Zhang Menghan, Chen Hong, Zhang Han, Li Jianrong. Determination of Mo (VI) in Water by the Diffusive Gradients in Thin-Films Technique Combined with Potassium Thiocyanate Spectrophotometry[J]. Chemistry, ;2016, 79(2): 175-178. shu

Determination of Mo (VI) in Water by the Diffusive Gradients in Thin-Films Technique Combined with Potassium Thiocyanate Spectrophotometry

1.
College of Chemistry, Chemical Engineering and Food Safety, Bohai University;Research Institute of Food Science, Bohai University;Food Safety Key Lab of Liaoning Province, Jinzhou 121013

Corresponding author: Chen Hong, Li Jianrong,
Received Date: 9 August 2015
Available Online: 20 September 2015
Fund Project:

Mo (VI) in water was pre-concentrated by the diffusive gradients in thin-films (DGT) technique with poly (quaternary ammonium salt) (PQAS) as binding phase (PQAS DGT) and measured by potassium thiocyanate (PT) spectrophotometry. The recoveries of Mo (VI) in the synthetic solutions measured by the DGT-PT method were 96.3%~101.3% with RSD of 1.3%~4.0%. The concentration of Mo (VI) in industrial wastewaters measured by the DGT-PT method was 27.13~121.79 μg/L with recoveries of 96.0%~101.6%. The enrichment factor of Mo (VI) pre-concentrated by PQAS DGT was 18 when deployment time of 48 h. Therefore, the DGT-PT method can be used to measure traces Mo (VI) in water.
- Molybdenum (VI),
- Diffusive gradients in thin-films,
- Spectrophotometry,
- Poly (quaternary ammonium salt),
- Water
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沈阳化工大学材料科学与工程学院沈阳 110142