Fast Detailed Hydrocarbon Analysis by Modified ASTM Method D6730
15 Aug 2014

This application note presents a modified method designed to reduce the time required for analysis, while meeting the quality criteria of the ASTM® method D6730. The improvements related to this method are achieved by modifying the carrier gas, the temperature ramps and the precolumn length, which will shorten the run time of the method to approximately 70 minutes. Improvements related to the overall throughput encompass not only the analysis run time but also the time needed for the oven to cool down and the time needed for pre-run events. Presented are the detailed conditions used to achieve this throughput improvement, examples of critical separations, and discussion of retention-index difference between the current ASTM® method and the Fast DHA method.

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