
Àü ¼¼°èÀûÀ¸·Î °¡Àå ºü¸£°í, ¼ÒÇüÈµÈ ÈÞ´ë¿ë °¡½ºÅ©·Î¸¶Åä±×·¡ÇÇ Áú·®ºÐ¼®±âÀÎ Torion»çÀÇ TRIDION¢â-9 Person Portable GC-TMS ´Â °í¿Â, ´Ù½À, ¿¾ÇÇÑ ÇöÀå¿¡¼µµ Àåºñ¸¦ ¼Õ½±°Ô ÈÞ´ëÇÏ¿© ºü¸¥ ½Ã°£ ³» ÇöÀå ºÐ¼®À» °¡´ÉÇÏ°Ô ÇÑ´Ù. ƯÈ÷, Àåºñ¸¦ ÀÛµ¿½ÃÅ°°í ºÐ¼®ÇÏ´Â µ¥, ´Ü 5ºÐ ³»¿Ü¸é µ¥ÀÌÅÍ È¹µæÀÌ °¡´ÉÇϸç, ÀüÇüÀûÀÎ Benchtop GC/MS¿Í´Â ´Þ¸® TRIDION¢â-9 Person Portable GC-TMS ´Â ±Ø¼ÒÇüÈµÈ ¼ÕÀâÀÌ½Ä °¡¹æÀ¸·Î °¡º±°Ô Á¦À۵Ǿî ÇöÀå¿¡¼ °£ÆíÇÏ°Ô ºÐ¼®ÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ, ÀÚµ¿ÈµÈ Calibration ±â´ÉÀÌ ÀÖ¾î °ü¸®°¡ Æí¸®ÇÏ¸ç »ç¿ëÀÌ ½±°í, °í°¨µµ, °í¼±Åüº, Ź¿ùÇÑ ÀçÇö¼ºÀ» º¸À¯ÇÏ°í ÀÖ¾î ÇöÀå¿¡¼ Áï½Ã ¿ì¼öÇÑ µ¥ÀÌÅ͸¦ ¾òÀ» ¼ö ÀÖ´Ù. º» ½ÇÇè¿¡¼´Â À½¿ë¼ö¿¡ ¹Ì·® ÀÜ·ùÇÏ´Â Geosmin °ú 2- MethylisoborneolÀ» TRIDION¢â-9 Person Portable GC-TMS·Î ÃøÁ¤Çϱ⿡ ¾Õ¼, ÃÖÀûÈ µÈ Á¶°Ç¿¡¼ ½Ã·á¸¦ ÃßÃâÇÏ°íÀÚ ¿©·¯ °¡Áö ¹æ¹ýÀ» ¸ð»öÇÏ¿´´Ù. µû¶ó¼ PDMS(Poly-Di-Methylpoly-Siloxane) Needle TrapÀ» 270 oC¿¡¼ ±ú²ýÇÑ ºó SGE needle°ú PDMS¸¦ °áÇÕ½ÃÄѼ Á¦ÀÛÇÏ¿´°í, On/Off Valve ¿Í Restrictor´Â Figure 1°ú °°ÀÌ Purging Line °ú Injector Line¿¡ ¿¬°áÇÏ¿´´Ù.
Figure 1. Schematic draw of needle trap assembly used for gesomin and
2-MID test

»ùÇÃÀº 10ppt, 100ppt¿Í 1000ppt ÀÇ ³óµµ º°·Î PDMS Pack Needle Trap¸¦ ÀÌ¿ëÇÏ¿© 0.5ml/min, 1ml/min¿Í 2ml/minÀÇ À¯¼ÓÀ¸·Î ÁÖÀÔÇÏ¿´´Ù. Figure 2~7´Â ³óµµ 10ppt¿¡¼ Geosmin°ú 2-MIB ¼ººÐÀ» °ËÃâÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» º¸¿©ÁÖ´Â Extracted Ion ChromatogramÀÌ´Ù. À¯¼ÓÀÌ 0.5mL/minÀÏ ¶§°¡ 1mL/min°ú2mL/minÀÏ ¶§ º¸´Ù ÃßÃâ È¿À²ÀÌ ÁÁ¾Ò´Ù. ÇÏÁö¸¸ ³ôÀº À¯¼Ó¿¡¼ ÃßÃâµÇ´Â »ùÇÿ¡ À־ »ùÇà ¾çÀÇ Áõ°¡·Î ºÐ¼®¹°ÁúÀÇ °ËÃâ °á°ú°¡ °³¼±µÇ¾ú´Ù.
Figure 2. 10 ppt of geosmin and 2- MIB detected by PDMS needle trap with 0.5 ml/min flow rate and 10 mL sample.
PDMS Needle TrapÀ» »ç¿ëÇÏ¿´À» °æ¿ì, ³ôÀº À¯¼Ó(2 mL/min)¿¡¼ÀÇ 2-MIB¿Í ³·Àº ³óµµ(10ppt)¿¡¼ÀÇ GeosminÀ» °ËÃâÇϴµ¥ ÀÖ¾î ´Ù¼Ò ´ú È¿°úÀûÀ̾ú´Ù. ¹Ý¸é¿¡, Figure 5~7°ú °°ÀÌ ³óµµ 100ppt¿Í 1ppb »ùÇÃÀº 10mL »ùÇà º¸´Ù Ŭ ¶§ ½±°Ô °ËÃâµÇ¾ú´Ù. µû¶ó¼ PDMS Needle Trap¿¡DVB(Di-Vinyl-Benzene)¸¦ ÷°¡ÇÏ¿©, Geosmin°ú 2-MIB ¼ººÐ µÑ ´Ù ÃßÃâ È¿À²À» °³¼±ÇÒ ¼ö ÀÖ´ÂÁö È®ÀÎÇØ º¸¾Ò´Ù.
Figure 3. 10 ppt of geosmin and 2- MIB detected by PDMS needle trap with 1 ml/min flow rate and 40 mL sample.
Figure 4. 10 ppt of geosmin and 2- MIB detected by PDMS needle trap with 2 ml/min flow rate and 60 mL sample.
Figure 5. 100 ppt of geosmin and 2- MIB detected by PDMS needle trap with 1 ml/min flow rate and 10 mL sample.
Figure 6. 100 ppt of geosmin and 2- MIB detected by PDMS needle trap with 2 ml/min flow rate and 10 mL sample.
Figure 7. 1 ppb of geosmin and 2- MIB detected by PDMS needle trap with 2 ml/min flow rate and 10 mL sample.
|