2-클로로벤질 알코올 및 2,4-디클로로벤질 알코올 유도체를 이용한 TDI, MDI 및 HDI의 가스크로마토그래피 분석

윤주송; 박준호; 이강명; 최홍순; 조영봉; 고상백; 차봉석

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자료유형: 학술저널

저자정보: 윤주송 (연세대학교 원주의과대학 예방의학교실 및 직업의학연구소) 박준호 (연세대학교 원주의과대학 예방의학교실 및 직업의학연구소) 이강명 (연세대학교 원주의과대학 예방의학교실 및 직업의학연구소) 최홍순 (관동대학교 의과대학 예방의학교실) 조영봉 (연세대학교 환경공학과) 고상백 (연세대학교 원주의과대학 예방의학교실 및 직업의학연구소) 차봉석 (연세대학교 원주의과대학 예방의학교실 및 직업의학연구소)

저널정보: 한국산업보건학회 (구 한국산업위생학회) 한국산업보건학회지 한국산업보건학회지 제16권 제3호

발행연도: 2006.1

수록면: 222 - 232 (11page)

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Objectives: The objective of this study was to propose the total isocyanate analytical method which involves derivation of 2,4-toluene diisocyanate(2,4-TDI), 2,6-toluene diisocyanate(2,6-TDI), 4,4'-methylenediphenyl diisocyanate(4,4'-MDI) and 1,6-hexamethylene diisocyanate(1,6-HDI) using 2-chlorobenzyl alcohol(2-CBA) or 2,4-dichlorobenzyl alcohol(2,4-DCBA), and analyzing of hydrolysate of the synthesized urethane with the gas chromatography(GC)/flame ionization detector(FID), GC/pulsed discharge ionization detector-electron capture detector(PD-ECD) and GC/mass selective detector(MSD). Methods: Urethanes were synthesized by reacting 2,4-TDI, 2,6-TDI, 4,4'-MDI and 1,6-HDI to 2-CBA or 2,4-DCBA. Urethanes was verified by TLC, HPLC/UVD and GC/MSD. For field application, the most suitable condition that 2-CBA coated in glass fiber filter removed completely and urethanes were not removed was searched. 2-CBA generated from hydrolysis of urethanes according to hydrolysis conditions. Diisocyanates were collected on field air and analyzed. Results: Urethanes which were white and solid phase synthesized by reacting 2,4-TDI, 2,6-TDI, 4,4'-MDI, 1,6-HDI and 2-CBA or 2,4-DCBA. And urethanes were verified by TLC, HPLC/UVD and GC/MSD. The most suitable conditions to remove 2-CBA coated in glass fiber filter were $87^{\circ}C$ and 20 mmHg and urethanes were not removed under same condition. Hydrolysis yields of urethanes were 99 % to 111 %. 2-CBA, the hydrolysate of urethanes was analyzed by GC/FID, GC/PD-ECD and GC/MSD. Conclusions: Simultaneous analysis of 2,4-TDI, 2,6-TDI, 4,4'-MDI and 1,6-HDI deriving with 2-CBA and 2,4-DCBA, along with a total isocyanate analysis, was feasible with GC/FID, GC/PD-ECD and GC/MSD. This result will be a guide of further study on total isocyanate analysis.

#total isocyanate #TDI #MDI #HDI #urethane #gas chromatography

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