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Nicotinamide adenine dinucleotide phosphate (monosodium salt), D-glucose-6-phosphate, glucose-6-phosphate dehydrogenase, ethylenediaminetetraacetic acid (disodium salt, 0.5 M) [EDTA], magnesium chloride (1.0 M) [MgCl2], glutathione ¿Í nefazodone Àº Sigma-Aldrich (St. Louis, MO)¿¡¼ ±¸ÀÔÇÏ¿´´Ù. |

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1) |
¸ðµç Human Liver Microsomal(1ml)Àº 2 mM EDTA, 5 mM MgCl2, 1 mg/mL Microsomes, 10 ¥ìM Nefazodone, 5 mM Glutathione °ú 1 mM NADPH¿¡¼ ¹è¾çÇÑ´Ù. |
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2) |
¸ðµç ½Ã·á´Â ½Ã¾àÀ» Á¦¿ÜÇÑ 0.1 M Phosphate Buffer (pH 7.4)¿¡ 1 mM Acetonitrile:H2O (1:1)10 ¥ìLÀ¸·Î ÃÖÁ¾ 0.1% ¹Ì¸¸ÀÌ µÇ°Ô AcetonitrileÀ» ÁغñÇÑ´Ù. |
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3) |
Tube¸¦ ¿¬ »óÅ¿¡¼ 37 ¡ÆC ·Î ÇÑ ½Ã°£ Á¤µµ ¹è¾çÇϰí, ÃÖÁ¾ Ice-Cold Acetonitrile 3 mL¸¦ ÷°¡Çϰí Tube¸¦ VortexÇÑ µÚ 5 ¡ÆC¿¡¼ 10ºÐµ¿¾È 1,203 g À¸·Î Centrifugation ÇÑ´Ù. |
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4) |
»óµî¾×Àº ±ú²ýÇÑ Tube·Î ¿Å±ä µÚ, »ó¿Â¿¡¼ Áú¼Ò °¡½º·Î ¸»¸°´Ù. |
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5) |
³ª¸ÓÁö´Â Water:Acetonitrile (9:1) 200 ¥ìLÀ¸·Î ³ì¿©¼ Hand-VortexÇÑ µÚ 0.45 ¥ìm Nylon Filter¸¦ ÀÌ¿ëÇÏ¿© »ó¿Â¿¡¼ 10ºÐ µ¿¾È 7,200 g À¸·Î CentrifugationÇÑ´Ù. |
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6) |
¿©°ú¾×Àº Çϱ⠹æ¹ýÀ» ÀÌ¿ëÇÏ¿© LC/MS¿Í MS/MS·Î ºÐ¼®ÇÑ´Ù. |

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Coulmn : Thermo HyPURITY AquastarTM Column (100 x 2.1 mm ID, 3 ¥ìm) |
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HPLC : |
Surveyor Plus HPLC System
- Flow Rate: 400 ¥ìL/min, Injection Volume: 20 ¥ìL
- Mobile Phase: A-Water with 0.2% Formic Acid,
B-Acetonitrile with 0.2% Formic Acid |


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MS : LTQ Orbitrap |
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1. |
LC¿¡ ÀÇÇØ¼ ºÐ¸®µÈ ½Ã·á´Â ½Ã°£¿¡ µû¶ó On-lineÀ¸·Î ¿¬°áµÈ LTQ OrbitrapÀ¸·Î ºÐÇØ´É (R=60,000)¿¡¼ Full Scan MS ¸¦ ÇÑ´Ù. |
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2. |
¼øÂ÷ÀûÀ¸·Î ¾Õ¼ Full ScanÇÑ Spectrum¿¡¼ ClÀÇ µ¿À§¿ø¼Ò¸¦ Æ÷ÇÔÇÑ Intensity°¡ °¡Àå Å« Compound¸¦ ÀÚµ¿À¸·Î °Ë»öÇÏ¿© Full MS/MS ÇÑ´Ù. |
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3. |
¾Õ¼ Full MS/MS ÇÑ Spectrum¿¡¼ °¡Àå Intensity°¡ Å« Compound¸¦ ºÐÇØ´É (R=30,000)¿¡¼ MS3¸¦ ÇÑ´Ù. |
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4. |
ÀÕµû¶ó Full MS3 ÇÑ Spectrum¿¡¼ °¡Àå Intensity°¡ Å« Compound¸¦ ºÐÇØ´É (R=30,000)¿¡¼ MS4¸¦ ÇÑ´Ù. »ó±â °úÁ¤Àº Figure 1°ú °°Àº Method·Î ¼³Á¤ÇÏ¸é ¸ðµÎ ÀÚµ¿ ½ÇÇàµÇ¾î µ¥ÀÌÅ͵éÀÌ ¾ò¾îÁø´Ù. |

[Figure 1 : Schematic of LTQ Orbitrap method setup using lsotopic Data
Dependence to trigger MSN on compounds containing a chlorine isotope pattem] |