Determination of Chromium(Ⅵ)in Dyeing Wastewater by Flow Injection On-line Separation and Preconcentration with Inductively Coupled Plasma-Atomic Emission Spectrometry
- VernacularTitle:印染废水中铬(Ⅵ)的流动注射-电感耦合等离子体原子发射光谱在线测定法
- Author:
Dan LU
;
Ya-Ping LIU
;
- Publication Type:Journal Article
- Keywords:
Water pollution;
Chromium (Ⅵ);
Flow injection;
On-line separation and preconcentration;
Inductively coupled plasma-atomic emission spectrometry;
Dyeing wastewater
- From:
Journal of Environment and Health
2007;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a new method for the determination of chromium (Ⅵ) in printing and dyeing wastewater. Methods A combined technique was employed for the determination of chromium (Ⅵ) by flow injection on-line separation and preconcentration on a micro column packed with alumina(acidic form) and inductively coupled plasma-atomic emission spectrometry (ICP-AES).The effect of acidity,concentration of eluent and coexistence ion on separation and enrichment was detected.Results The detection limit was 0.72 ?g/L.The LOQ was 2.38 ?g/L.RSDs were 1.45%～2.12%.The recovery rates were 96.0%-104.0%.The concentration enhancement of chromium (Ⅵ) was 10 times for 45 s sample loading.Analytic frequency was 33 samples one hour. Conclusion This method is sensitive,rapid and applicable to the determination of chromium (Ⅵ) in dyeing wastewater.
