DNPH cartridge/LC-MS 방법에 의한 반월ㆍ시화산업단지의 폼알데하이드 분석에 관한 연구

Formaldehyde is important because of their irritant and toxic properties, mutagenicity and carcinogenicity. In this study, liquid chromatography-mass spectrometry (LC-MS) is used for the analysis of formaldehyde after derivatization with 2,4-dinitrophenylhydrazine (DNPH) cartridge. Analytical parameters such as linearity, repeatability and minimum detection limit were evaluated. The linearity (r²) was 0.9997 when analyte concentration ranges from 25 to 200 ㎍/l. The relative standard deviation (%RSD) was 1.25 % for concentration of 200 ㎍/l. The minimum detection limit (MDL) was 0.73 ppbv. It was shown that LC-MS method has a great potential for formaldehyde analysis. The results of formaldehyde from the survey of Ban-Woll and Shi-Hwa Industrial Complex samples, the highest level was 6.20, 3.93 ppb, respectively. The highest emission level of formaldehyde at chemical plants in the Ban-WollㆍShi-Hwa Industrial Complex was 5421.25 ppb.