기중 포름알데히드 측정을 위한 확산포집기의 개발

The Development of New Diffusive Sampler for Formaldehye in Air

  • 최미헌 (가톨릭대학교 산업보건대학원 산업위생학과) ;
  • 이광묵 (가톨릭대학교 산업보건대학원 산업위생학과) ;
  • 노영만 (가톨릭대학교 산업보건대학원 산업위생학과)
  • Choe, Mee-heon (Department of Occupational Hygiene, Graduate School of Occupational Health, The Catholic University of Korea) ;
  • Lee, Kwang-Mook (Department of Occupational Hygiene, Graduate School of Occupational Health, The Catholic University of Korea) ;
  • Roh, Young-Man (Department of Occupational Hygiene, Graduate School of Occupational Health, The Catholic University of Korea)
  • 발행 : 1999.05.14

초록

To utilize diffuse sampling of formaldehyde in air, a new sampler was designed. A glass fiber filter was impegnated with 2,4-dinitrophenylhydrazine(DNP) and phosphoric acid and mounted 37mm cassette. The formaldehyde vapor was sampled in the dynamic chamber and measured by high performance liquid chromatograph and compared with solid sorbent tube. The results were as follows ; 1. The desorption efficiencies of diffusive sampler between 97.0% and 100%. 2. the sampling rate is constant as in $58{\sim}61.8m{\ell}/min$ when sampling times are between 120 and 360 min. 3. There was a significant relationship between concentrations of diffusive samples and active samples with the coefficient of determination(R2) of 0.92. 4. Desorbed amount of formaldehyde diffusive sampler was increased by high relative humidity. 5. Wheth diffusive samplers were stored at room temperature or at refrigerator there was no statistically significant difference in the accuracy of result. 6. When the diffusive samplers, which collected formaldehyde vapor, were exposed to clean air for three hours, there was no significant loss of formaldehyde due to reverse diffusion. In conclusion, this study suggest that developed diffusive samplers will be a reasonable substitute for the solid sorbent tube for sampling formaldehyde and practical comparative study of developed diffusive sampler should be performed at workplaces of manufacturing industry.

키워드