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更新時間：2023-06-15
Rtx-624 氣相色譜柱，分析揮發性有機污染物的色譜柱。美國EPA方法推薦的揮發性有機污染物分析柱。類似固定相：DB-1301, DB-624, VF-1301ms, VF-624ms, CP-1301, ZB-624
Rtx-624 氣相色譜柱簡介：
(低于中等級性的固定相；Crossbond氰丙基苯基二甲基聚硅氧烷)
分析揮發性有機污染物的色譜柱。美國EPA方法推薦的揮發性有機污染物分析柱。
溫度范圍: -20 °C~240 °C。
等同于USP固定相G43。
類似固定相：DB-1301, DB-624, VF-1301ms, VF-624ms, CP-1301, ZB-624
訂貨信息：
| ID | df | 溫度限度 | 30-米 | 60-米 | 75-米 | 105-米 |
| 0.25 mm | 1.40 μm | -20 to 240 °C | 10968 | 10969 | — | — |
| 0.32 mm | 1.80 μm | -20 to 240 °C | 10970 | 10972 | — | — |
| 0.45 mm | 2.55 μm | -20 to 240 °C | — | — | 10982 | — |
| 0.53 mm | 3.00 μm | -20 to 240 °C | 10971 | 10973 | 10974 | 10975 |
| ID | df | 溫度限度 | — | 20-米 | 40-米 | |
| 0.18 mm | 1.00 μm | -20 to 240 °C | — | 40924 | 40925 |
| Peaks | |
|---|---|
| 1. | Chloromethane |
| 2. | Vinyl chloride |
| 3. | Bromomethane |
| 4. | Chloroethane |
| 5. | Trichlorofluoromethane |
| 6. | 1,1-Dichloroethene |
| 7. | Methylene Chloride |
| 8. | trans-1,2-Dichloroethene |
| 9. | 1,1-Dichloroethane |
| 10. | Bromochloromethane |
| 11. | Chloroform |
| 12. | 1,1,1-Trichloroethane |
| 13. | Pentafluorobenzene |
| 14. | Carbon Tetrachloride |
| 15. | Benzene |
| 16. | 1,2-Dichloroethane |
| 17. | Fluorobenzene |
| 18. | Trichloroethene |
| Peaks | |
|---|---|
| 19. | 1,2-Dichloropropane |
| 20. | Bromodichloromethane |
| 21. | 2-Chloroethyl vinyl ether |
| 22. | cis-1,3-Dichloropropene |
| 23. | Toluene |
| 24. | 2-Bromo-1-chloropropane |
| 25. | 1,1,2-Trichloroethane |
| 26. | Tetrachloroethene |
| 27. | Dibromochloromethane |
| 28. | trans-1,3-Dichloropropene |
| 29. | Chlorobenzene |
| 30. | Ethylbenzene |
| 31. | Bromoform |
| 32. | 1,4-Dichlorobutane |
| 33. | 4-Bromofluorobenzene |
| 34. | 1,1,2,2-Tetrachloroethane |
| 35. | 1,3-Dichlorobenzene |
| 36. | 1,4-Dichlorobenzene |
| 37. | 1,2-Dichlorobenzene |
GC_EV00701
| Column | Rtx®-624, 40 m, 0.18 mm ID, 1.00 µm (cat.# 40925) |
| Sample | 624 Internal Standard Mix (cat.# 30023) |
| 624 Surrogate Standard Mix (cat.# 30243) | |
| Volatiles MegaMix™, EPA Method 624 (cat.# 30497) | |
| Conc.: | compounds at 50 ppb (IS @ 40ppb) in 5mL of RO water |
| Injection | purge and trap split (split ratio 40:1) |
| Inj. Temp.: | 250 °C |
| Purge and Trap | |
| Instrument: | Tekmar LSC-3100 Purge and Trap |
| Trap Type: | Vocarb 3000 (type K) |
| Purge: | 11 min @ ambient, flow 40 mL/min |
| Dry Purge: | 1 min, flow 40 mL/min |
| Desorb Preheat Temp.: | 245 °C |
| Desorb: | 2 min @ 250 °C, flow 10 mL/min |
| Bake: | 8 min @ 260 °C |
| Interface Connection: | injection port |
| Transfer Line Tubing: | Silcosteel® transfer line, 1mm ID sleeve |
| Oven | |
| Oven Temp.: | 50 °C (hold 4 min) to 100 °C at 12 °C/min to 230 °C at 27 °C/min (hold 2 min) |
| Carrier Gas | He, constant flow |
| Flow Rate: | 1.1 mL/min |
| Dead Time: | 2.06 min @ 50 °C |
| Detector | Agilent 5971A GC/MS |
| Transfer Line Temp.: | 280 °C |
| Analyzer Type: | Quadrupole |
| Tune Type: | PFTBA/BFB |
| Ionization Mode: | EI |
| Scan Range: | 35-260 amu |
| Notes | (MCS bypassed using Silcosteel® tubing) |
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