8
Rtx-DHA 氣相色譜柱
Rtx-DHA 氣相色譜柱產品性能：
(Crossbond技術鍵合100%二甲氧基聚硅氧烷—*適合于碳氫化合物的分析)
該柱性能滿足或超過了STM D6730-01和CAN/CGSB 3.0 4.3-99方法的要求；每根色譜柱附帶有方法D6730的檢驗報告。
對極性氧化物有出色的響應和峰對稱性。
類似固定相：HP-PONA, DB-Petro, CP-Sil PONA C8,Petrocol DH
訂貨信息：
| ID | df | 溫度限 | 50米 | 100米 | 150米 |
| 0.20 mm | 0.50 μm | -60 to 300/340 °C | 10147 | ||
| 0.25 mm | 0.50 μm | -60 to 300/340 °C | 10148 | ||
| 1.00 μm | -60 to 280/340 °C | 10149 |
Impurities in Methyl-t-Butyl Ether (MTBE) on Rtx®-DHA-50 (ASTM D5441)
| Peaks | |
|---|---|
| 1. | Methanol |
| 2. | iso-Pentane |
| 3. | n-Pentane |
| 4. | trans-2-Pentene |
| 5. | tert-Butanol |
| 6. | cis-2-Pentene |
| Peaks | |
|---|---|
| 7. | 2-Methyl-2-butene |
| 8. | tert-Butyl ethyl ether |
| 9. | tert-Amyl methyl ether (TAME) |
| 10. | 2,4,4-Trimethyl-1-pentene |
| 11. | 4,4'-Dimethyl-2-neopentyl-1-pentene (triisobutylene) |
| 12. | 2,2,4,6,6-Pentamethyl-3-heptene (triisobutylene) |
GC_PC1270
| Column | Rtx®-DHA-50, 50 m, 0.20 mm ID, 0.50 µm (cat.# 10147) |
| Sample | ASTM D5441 MTBE contaminants mix |
| Conc.: | 1 % (w/w) each component in MTBE |
| Injection | |
| Inj. Vol.: | 0.2 µL split (split ratio 200:1) |
| Liner: | Cup splitter (cat.# 20710) |
| Inj. Temp.: | 200 °C |
| Oven | |
| Oven Temp.: | 40 °C (hold 13 min) to 180 °C at 10 °C/min (hold 3 min) |
| Carrier Gas | He, constant flow |
| Flow Rate: | 0.9 mL/min |
| Linear Velocity: | 23 cm/sec @ 40 °C |
| Detector | FID @ 250 °C |
| Make-up Gas Flow Rate: | 24 mL/min |
| Make-up Gas Type: | N2 |
| Hydrogen flow: | 30 mL/min |
| Air flow: | 350 mL/min |
| Instrument | Agilent 7890B GC |
| Notes | Resolution between trans-2-pentene/tert-butanol and tert-butanol/cis-2-pentene meets the ASTM Method D5441 requirement of R ≥ 1.3. |
