sample_ID              lecture_bottle  lot_number  ratio_45_to_44  ratio_46_to_44  delta_15N  delta_18O  N2_injected_L  N2O_initial  added_15N15N16O  N2_injected_moles  ratio_15N15N16O_to_15N2  
Vial_1                 Sigma_A2        SZ1670V     16.7            2492.7          15.74      2614.1     1.25E-05       1.00E-08     5.35E-11         5.11E-07           1.05E-04                 
Vial_2                 Sigma_A2        SZ1670V     17.9            2740.3          16.99      2873.6     1.25E-05       1.00E-08     5.88E-11         5.11E-07           1.15E-04                 
Vial_3                 Sigma_A2        SZ1670V     30.5            5184.1          30.33      5433.4     2.50E-05       1.00E-08     1.11E-10         1.02E-06           1.09E-04                 
Vial_4                 Sigma_A2        SZ1670V     24.7            4040.2          24.21      4235.2     2.00E-05       1.00E-08     8.68E-11         8.17E-07           1.06E-04                 
Control_1              Sigma_A2        Control     2.18            0.52            0.5        3.4        nd             nd           nd               nd                 nd                       
Control_2              Sigma_A2        Control     2.16            0.56            0.5        3.4        nd             nd           nd               nd                 nd                       
IAEA_N-3               Sigma_A2        Standard    6.6             21.7            4.6        25.5       nd             nd           nd               nd                 nd                       
IAEA_N-3               Sigma_A2        Standard    6.8             21.8            4.8        25.7       nd             nd           nd               nd                 nd                       
US_34                  Sigma_A2        Standard    -0.7            -29.6           -1.7       -28.1      nd             nd           nd               nd                 nd                       
US_34                  Sigma_A2        Standard    -0.8            -29.3           -1.9       -27.8      nd             nd           nd               nd                 nd