Preparation of Standard Material of Individual n-alkane Serial Carbon Isotope

In order to meet the accurate ( 13C measurement of organic individual compound on chromatography analyzer and isotope mass spectrometry, the standard material of C12~C36 n-alkane serial isotope has been prepared. The prepared solution 0f C12~C36 in which n-hexane is used as solvent is even and stable. The standard material has been measured in two ways by all three laboratories, and the uncertainty degree of single measurement result is 0.9‰.