Determination of Cyanide in Water by Derivative Headspace Gas Chromatography.
- VernacularTitle:衍生化顶空气相色谱法测定水中氰化物
- Author:
Danan WU
;
Jing LU
;
Xiaoxun ZHU
;
- Publication Type:Journal Article
- Keywords:
Cyanide;
Headspace gas chromatography;
Drinking water
- From:
Journal of Environment and Health
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Determination of cyanide in water was performed by headspace gas chromatogaphy (HS GC).The determination of headspace gases produced by the reaction of cyanide and miamine in headspace container could be completed by HS GC on its first analysis.Some subjects,such as the interference from 22 kinds of common ions in water,the required amount of derivative agent,the selection and conditions of separation column were also studied in this assay.The results showed that the imported column could be replaced by GDX 102 column,which had perfect separation efficiency.The lowest detectable concentration and detection limit were 0.8 ?g/L and 0.040 ?g respectively.The calibration curve revealed linear relationship in the range of cyanide from 0 ?g/L to 20 ?g/L.The standard relative deviation and recovery rate were below 10% and 86%~107% respectively.Parameters metioned above in this assay presented no significant differences compared with national standard assay.It was suitable for analysis of the concentration of cyanide in drinking water due to its satisfactory accuracy and precision according with the requirement of sanitary analysis.It was a simple,rapid and practical analytical technique.
