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- Reference: UNI EN 16167:2012; EPA Official Method 1668C-2010
- Tested with VELP Scientifica SER 158/6 Solvent AutoExtractor (Code S303A0380) |
|
| ¿µ¾î¿øº»º¸±â
| Application Note ¸®½ºÆ® | |
Introduction
PCBs (polychlorinated biphenyls) ´Â ¹«±Ø¼º À¯±â¿°¼Ò ¹°Áú·Î À¯±â¿ë¸Å, ±â¸§, Áö¹æ¿¡ ¿ëÇØµÇ°í °í¿Â, »ê, ¿°±â ¹× ³ôÀº Áõ±â¾Ð¿¡ ´ëÇÑ ÀúÇ×¼ºÀÌ °ÇÑ Æ¯Â¡À» °¡Áö°í ÀÖ´Ù.
ÀÌ·¯ÇÑ ÈÇÕ¹°ÀÇ ºÐ¼®Àº ȯ°æ ½ÇÇè½Ç¿¡¼ ÀÌ¹Ì ÀÏ»óÀûÀÎ ºÐ¼®ÀÌ µÇ¾ú´Ù.
80³â´ëºÎÅÍ ÀÌÅ»¸®¾Æ¿¡¼ »ç¿ëÀÌ ±ÝÁöµÇ¾úÁö¸¸ PCB ´Â º¸ÆíÀûÀ¸·Î Á¸ÀçÇÏ´Â ¿À¿°¹°Áú·Î¼ ÀÜ·ù¼º ¹× »ý¹° ÃàÀû¼ºÀÌ ÀÖ¾î À¯·´ ¹ý·ü¿¡¼ ±ÔÁ¤ÇÑ ¿ì¼± ¹°Áú ¸ñ·Ï¿¡ Æ÷ÇԵǰí ÀÖ´Ù.
Extract Determination in Certified Reference Material
SER 158 Àåºñ¿¡¼ À¯±â¿ë¸Å¸¦ °í¿ÂÀ¸·Î °¡¿ÇÏ¿© PCB ¸¦ ÃßÃâÇÏ´Â °úÁ¤Àº ÃÑ 4´Ü°è·Î ÁøÇàµÇ¸ç ¸ðµç °úÁ¤ÀÌ ÀÚµ¿À¸·Î ÀÌ·ç¾îÁø´Ù
¨ç Immersion : ½Ã·á¸¦ boiling ssolvent ¿¡ immersion ½ÃŲ´Ù.
¨è Removing : À¯±â¿ë¸Å¸¦ Áõ¹ß½ÃŲ ÈÄ È¸¼öÇϸé À¯±â¿ë¸ÅÀÇ ³ôÀÌ°¡ ³·¾ÆÁö°í, ½Ã·á°¡ ´õ ÀÌ»ó À¯±â¿ë¸Å¿¡ Àá±âÁö ¾Ê´Â´Ù.
¨é Washing : »ó´ÜÀÇ condenser ¿¡¼ ³Ã°¢µÈ À¯±â¿ë¸Å°¡ ÇÏ´ÜÀÇ ½Ã·á·Î ¹Ýº¹ÀûÀ¸·Î À̵¿ÇÏ¸é¼ ÁöÁúÀ» ³ì¿©³½´Ù.
¨ê Recovery : À¯±â ¿ë¸Å¸¦ ¸ðµÎ Áõ¹ß½ÃÅ°°í ȸ¼öÇÑ´Ù.
¨ë Cooling : extraction cup À» µé¾î ¿Ã·Á¼ ³Ã°¢ÇÑ´Ù.
Samples - Certified reference material
- CNS329 : PCBs and PBDEs on Fresh Water Sediment
- CRM961 : PCB Congeners - Clay Soil
ÀÎÁõµÈ Ç¥ÁØ ¹°ÁúÀº ÃßÃâ Áغñ°¡ µÈ µ¿°á °ÇÁ¶µÈ »óÅ·Π¹è¼ÛµÇ¾ú´Ù.
Chemicals and Equipment Required
1. |
Extraction glass fiber thimbles 33x80 mm (Code A00000313) |
2. |
Glass extraction cups ¨ª 56x120mm (Code A00000290) |
3. |
Vaflon seals (Code A00000288) |
4. |
n-hexane:aceton solvent (75:25) for pesticide residue analysis |
5. |
13C12PCB111 and 13C12PCB170 recovery standards and P48-W-ES internal standards mix were supplied by Wellington Laboratories (Canada) |
6. |
Automatic Solvent Extractor VELP SER 158/6 |
7. |
GC-MS with a Trace 1310 chromatograph coupled with a triple quadrupole mass TSQ 8000 EVO (Thermo Fisher Scientific, USA) |
Sample Preparation
- Thimble À» thimble Ȧ´õ (ÄÚµå A00000312) ¿¡ °íÁ¤ÇÑ´Ù.
- »ùÇÃ 0.5 g À» Thimble ¿¡ Ãß°¡ÇÑ´Ù.
Glass Extraction Cups Preparation
- Internal standards ¸¦ ÃßÃâ ÄÅ¿¡ Ãß°¡ÇÑ´Ù.
- ÃßÃâ ÄÅ¿¡ thimble À» »ðÀÔÇÏ¿© SER 158 ÀÇ °¡¿ÆÇ¿¡ À§Ä¡ÇÑ´Ù.
Extraction Procedure with SER 158
Control Pad ¿¡¼ Analysis ¸¦ ¼±ÅÃÇÑ ´ÙÀ½ ¸Å°³º¯¼ö¸¦ Æ÷ÇÔÇÏ°í Àִ ǥÁØ ¹æ¹ý 25 ¡°Organic micro-pollutants for GC-MS analysis¡± ¸¦ ¼±ÅÃÇÑ´Ù
- Immersion Time: 60 minutes
- Removing Time: 10 minutes
- Washing Time: 60 minutes
- Recovery Time 0 minutes
- Cooling Time: 4 minutes
- Extraction cups : Standard ¨ª56 x 120 mm
- Glass fiber Thimble : 33 x 80 mm
- Solvent: n-hexane: acetone (75:25 v/v), 100 ml
Safety guard ¸¦ ´Ý°í SolventXpressTM ½Ã½ºÅÛÀ» »ç¿ëÇÏ¿© À¯±â¿ë¸Å¸¦ ÁÖÀÔÇÑ´Ù. À̶§ ÁÖÀÔ °æ·Î°¡ ¿ÜºÎ¿Í Â÷´ÜµÇ¾î
À¯±â¿ë¸ÅÀÇ »ç¿ëÀÚ ³ëÃâ À§ÇèÀÌ ÃÖ¼ÒȵȴÙ.
START ¸¦ ¼±ÅÃÇÏ¸é ¿ë¸Å¸¦ ȸ¼öÇÏ´Â ´Ü°è±îÁö ¸ðµç °úÁ¤ÀÌ ÀÚµ¿À¸·Î ÁøÇàµÈ´Ù.
GC-MS with a Trace 1310 chromatograph coupled with a triple quadrupole mass TSQ 8000 EVO
SER 158·Î ÃßÃâÇÑ ¹°ÁúÀº GC-MS with a Trace 1310 chromatograph coupled with a triple quadrupole mass TSQ 8000 EVO ¿¡¼ ´Ù¾çÇÑ Á¾·ùÀÇ PCB ¼ººÐ ºÐ¼®À» ÁøÇàÇÏ¿´´Ù.
Results
ÃßÃâ¹°À» GC-MS with a Trace 1310 chromatograph coupled with a triple quadrupole mass TSQ 8000 EVO ·Î ºÐ¼®ÇÑ °á°ú´Â ´ÙÀ½°ú °°´Ù.
ºÐ¼®ÀÌ ³¡³ª¸é ÀåÄ¡¿¡¼ extraction cup À» Á¦°ÅÇÑ´Ù. Sterile sample receiving jar ¹«°Ô¸¦ ÃøÁ¤ÇÑ ´ÙÀ½ extraction cup ÀÇ ´ë¸¶ÃÊ ¿ÀÀÏ »ùÇÃÀ» jar ¿¡ ³Ö´Â´Ù.
¿¡Åº¿ÃÀ» Áõ¹ßÇϱâ À§ÇØ jarÀ» Áø°ø ¿Àºì¿¡ ¹èÄ¡ÇÑ´Ù. ÃßÃâµÈ ¸ðµç cannabis oil ½Ã·áÀÇ ¹«°Ô¸¦ ÃøÁ¤ÇÏ°í label À» ºÙÀÌ°í ¹øÈ£¸¦ ¸Å±ä ÈÄ cannabinoids potency ¸¦ Á¤¼ººÐÇÑ´Ù.
SER 158 / 6 À» »ç¿ëÇÏ¿© ÀÎÁõµÈ »ùÇà CNS329 - 'PCBs and PBDEs on Fresh Water Sediment' ¸¦ 4°³ ¹× blank 2°³¸¦ ºÐ¼®ÇÏ¿´´Ù.
°¢ PCB congener ¿¡ ´ëÇØ Internal Standard, parameter concentration ¹× relative standard deviation À» °è»êÇÏ¿´´Ù.
Blank ºÐ¼®¿¡¼ ¿¹Ãø °ª ¹üÀ§¸¦ ÃÊ°úÇÏ´Â °á°ú´Â ÃøÁ¤µÇÁö ¾Ê¾Ò´Ù.
Ç¥ÁØ »ùÇÿ¡¼ À¯È¿ ¼ººÐ ÃßÃâÀ²Àº 84 ~ 107%ÀÌ´Ù. ÃøÁ¤ÇÑ ¸ðµç °á°ú´Â Ç¥ÁØ °ª ¹üÀ§¿¡ ºÎÇյȴÙ.
Conclusion
INSTDÀÇ Æò±Õ ȸ¼öÀ²Àº Ç¥ÁØ UNI EN 16167¿¡ ¸í½ÃµÈ Ç¥ÁØ °ªÀÇ ¹üÀ§ (70 ~ 110%)¿¡ ºÎÇյȴÙ.
°¢ ¼ººÐÀÇ ÇÔ·® °á°ú·ÎºÎÅÍ ½ÃÇè¹ýÀÇ ¿ÀÂ÷ ¹üÀ§°¡ ¡¾ 30% (average error 12%) ·Î Çã¿ë °¡´ÉÇÑ ¿ÀÂ÷ ¹üÀ§¿¡ ºÎÇյȴٴ °ÍÀ» ¾Ë ¼ö ÀÖ´Ù.
SER 158/6 Solvent AutoExtractor ÀÇ ÀåÁ¡
¨ç Àü¼¼°èÀûÀ¸·Î °øÀÎµÈ ½ÃÇè¹ý Àû¿ë
¨è ±âÁ¸ÀÇ Soxhlet ¹ýº¸´Ù 4~5¹è ºü¸¥ ÃßÃâ ¼Óµµ
¨é ºÐ¼®½Ã ÀÚµ¿À¸·Î À¯±â¿ë¸Å ȸ¼öµÇ¹Ç·Î º°µµÀÇ Rotary evaporator »ç¿ë ºÒÇÊ¿ä    
¡æ Àüü ºÐ¼® ½Ã°£ ´ÜÃà    
¡æ °£´ÜÇÏ°í Æí¸®ÇÑ »ç¿ë    
¡æ Àåºñ ±âº» ÅõÀÚ ºñ¿ë Àý°¨
¨ê 90% ÀÇ Å¹¿ùÇÑ À¯±â¿ë¸Å ȸ¼ö·Â
¨ë SolventXpressTM À¯±â¿ë¸Å ºÐÁֽýºÅÛ Àû¿ëÇÏ¿© À¯±â¿ë¸Å »ç¿ëÀÚ ³ëÃâ À§Çè ÃÖ¼Ò
¨ì ÅÍÄ¡½ºÅ©¸° Controlpad »ç¿ë, ÃÖ´ë 24°³ÀÇ »ùÇÃÀ» µ¶¸³ÀûÀ¸·Î Á¦¾î/½ÇÇè °¡´É
¨í ƼŸ´½ Äܵ§¼ (ƯÇã) Àû¿ë
¨î ½ÃÇè °á°ú ÀÚµ¿ ÀúÀå (on-board archive) À¸·Î full traceability º¸Àå
¨ï GLP (good laboratory practice) standards Àû¿ë
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