A Proficiency Testing System for the Determination of Volatile Halogenated Hydrocarbons at μg/L Concentration Level in Water

2001 ◽  
Vol 81 (1) ◽  
pp. 1-14
Author(s):  
Stefan Apfalter ◽  
Wolfgang Kandler ◽  
Rudolf Krska ◽  
Manfred Grasserbauer
Keyword(s):  
Proficiency Testing ◽  
Concentration Level ◽  
Halogenated Hydrocarbons ◽  
Testing System ◽  
Volatile Halogenated Hydrocarbons

Determination of Volatile Halogenated Hydrocarbons in Wastewater by Single-Drop Microextraction Coupled to Capillary Gas Chromatography

2013 ◽  
Vol 295-298 ◽  
pp. 487-491
Author(s):  
Jian Qi Sun
Keyword(s):  
Gas Chromatography ◽  
Capillary Gas Chromatography ◽  
Halogenated Hydrocarbons ◽  
Wastewater Sample ◽  
Single Drop ◽  
Single Drop Microextraction ◽  
Relative Standard ◽  
Wastewater Samples ◽  
Volatile Halogenated Hydrocarbons

Single-drop microextraction (SDME) coupled to capillary gas chromatography (GC) was established for the determination of seven volatile halogenated hydrocarbons in wastewater, including chloroform (CF), carbon tetrachloride (CT), trichloroethylene (TCE), bromodichloromethane (BDCM), perchlorethylene (PCE), dibromochloromethane (DBCM) and bromoform (BF). The SDME parameters such as extractants, extracting time，stirring rate and immerging depth of needle point were studyed and optimized. The abovementioned halogenated hydrocarbons were quantified by external standardization method using GC coupled with a flame ionization detector (FID). The linear regression calibration curves, detection limits (S/N=3) and the linear ranges of the method for determining each halogenated hydrocarbons were determined, respectively. The concentrations of componds abovementioned in a real wastewater sample, the average of the recoveries obtained in the spiked wastewater samples and the corresponding relative standard deviations were determined, respectively. The results showed the proposed method several attributes, friendly enviroment, economic and highly efficient pretreatment, less time, simplicity, sensitivity, accuracy and wide linear range and so on.

Sign in / Sign up

Export Citation Format

Share Document