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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±×
- 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¿Çϸ鼭 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 ÃÖ¼ÒÈ­µÈ´Ù.

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¡

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