Determination of aldehydes in rainwater using micro-solid-phase extraction and high-performance liquid chromatography.
A simple and rapid extraction procedure was developed for determining aldehydes in rainwater samples. This extraction technique involved the use of micro-solid-phase extraction in which the sorbent was held within a polypropylene membrane envelope, followed by high-performance liquid chromatographic analysis. Aldehydes such as formaldehyde, acetaldehyde, propionaldehyde and valeraldehyde were used as model compounds. Extraction conditions were optimized. The method linearity ranged between 0.5 and 50 μgl(-1) with the correlation coefficient of 0.987-0.999. The relative standard deviations (RSDs) of the method ranged from 7 to 12%. Method detection limits were in the range of 0.07-0.15 μgl(-1), which is lower than those previously reported for solid-phase microextraction combined with gas chromatography-mass spectrometric techniques. The proposed extraction technique was used for determination of aldehydes in rainwater samples to demonstrate the applicability of the method.
Basheer
Chanbasha
C
Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
Pavagadhi
Shruti
S
Yu
Huixin
H
Balasubramanian
Rajasekhar
R
Lee
Hian Kee
HK
D000447:Aldehydes / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006834:Hydrazines / Q000737:chemistry; D016014:Linear Models; D011891:Rain / Q000737:chemistry*; D012680:Sensitivity and Specificity; D052617:Solid Phase Microextraction / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis
D000447:Aldehydes; D006834:Hydrazines; D014874:Water Pollutants, Chemical; C446799:dinitrophenylhydrazine