www.restek.it

Alkylate Standard on Rtx-DHA 50 by Method D5134-13

Column | Rtx-DHA-50, 50 m, 0.20 mm ID, 0.50 µm (cat.# 10147) |
Sample | ASTM D5134 qualitative reference alkylate standard (DCG Partnership I, LTD) |
Injection | |
Inj. Vol.: | 0.2 µL split (split ratio 200:1) |
Liner: | Premium 4.0 mm ID Precision inlet liner w/ wool (cat.# 23305.5) |
Inj. Temp.: | 200 °C |
Oven | |
Oven Temp.: | 35 °C (hold 30 min) to 200 °C at 2 °C/min |
Carrier Gas | He, constant pressure |
Linear Velocity: | 23 cm/sec |
Detector | FID @ 250 °C |
Make-up Gas Flow Rate: | 30 mL/min |
Make-up Gas Type: | N2 |
Hydrogen flow: | 40 mL/min |
Air flow: | 370 mL/min |
Instrument | Agilent 7890B GC |
Notes | Understanding the hydrocarbon components in petroleum samples is useful for sample characterization, determining product quality, planning and modeling of refinery processes, and also for regulatory purposes. ASTM D5134-13 provides the composition of paraffin, naphthenes, and monoaromatic compounds up to n-C9 in petroleum naphthas, reformates, and alkalytes. This method is run using a long, narrow-bore column, which has a limited sample loading capacity. Therefore, high split is used and a small sample volume is injected. Restek’s Rtx-DHA-50 column is a good match for this analysis; retention index (RI) data are in agreement with the RI data provided in the method. |
relativo alle ricerche nella libreria dei cromatogrammi
Consigli per la stampa! Per stampare cromatogrammi su tutta la pagina, cambiare le impostazioni di stampa nella finestra di stampa del vostro software PDF reader: 1)"adatta" o "adatta alla pagina", 2)"panorama" per cromatogrammi grandi o "ritratto" per cromatogrammi alti.