lecture_bottle lot_number solution headspace N2_injection sample_ID initial_NO3 final_NO3 uncorr_d15N d15N_PN assigned_d15N Sigma_A3 SZ1670V 250 50 0.2 SA_DT_1 50 0 37.7 37.0 nd Sigma_A3 SZ1670V 250 50 0.2 SA_DT_2 50 0 47.3 46.6 nd Sigma_A3 SZ1670V 250 50 0.2 SA_DT_3 50 0 49.6 49.0 nd Sigma_A3 SZ1670V 250 50 0.2 SA_DT_1 50 0 38.6 37.9 nd Sigma_A3 SZ1670V 250 50 0.2 SA_DT_2 50 0 46.8 46.1 nd Sigma_A3 SZ1670V 250 50 0.2 SA_DT_3 50 0 49.7 49.1 nd Sigma_A3 Standard 250 50 0.2 US_40_1 nd nd nd -3.11 -4.52 Sigma_A3 Standard 250 50 0.2 US_40_2 nd nd nd -3.34 -4.52 Sigma_A3 Standard 250 50 0.2 US_40_3 nd nd nd -3.54 -4.52 Sigma_A3 Standard 250 50 0.2 US_41_1 nd nd nd 48.63 47.57 Sigma_A3 Standard 250 50 0.2 US_41_2 nd nd nd 47.99 47.57 Sigma_A3 Standard 250 50 0.2 US_41_3 nd nd nd 48.08 47.57 Cambridge_B I-16727 250 50 0.2 CI_DT_1 50 0 nd nd nd Cambridge_B I-16727 250 50 0.2 CI_DT_2 50 0 3.3 1.8 nd Cambridge_B I-16727 250 50 0.2 CI_DT_3 50 0 3.3 1.9 nd Cambridge_B I-16727 250 50 0.2 CI_DT_1 50 0 3.6 2.2 nd Cambridge_B I-16727 250 50 0.2 CI_DT_2 50 0 3.4 1.9 nd Cambridge_B I-16727 250 50 0.2 CI_DT_3 50 0 3.6 2.2 nd Cambridge_B Standard 250 50 0.2 US_40_1 nd nd nd -2.34 -4.52 Cambridge_B Standard 250 50 0.2 US_40_2 nd nd nd -3.21 -4.52 Cambridge_B Standard 250 50 0.2 US_40_3 nd nd nd -3.19 -4.52 Cambridge_B Standard 250 50 0.2 US_41_1 nd nd nd 46.22 47.57 Cambridge_B Standard 250 50 0.2 US_41_2 nd nd nd 48.90 47.57 Cambridge_B Standard 250 50 0.2 US_41_3 nd nd nd 48.71 47.57 controls Control 250 50 none Control_DT_1 50 0 3.3 1.8 nd controls Control 250 50 none Control_DT_2 50 0 3.2 1.8 nd controls Control 250 50 none Control_DT_3 50 0 3.2 1.8 nd controls Control 250 50 none Control_DT_1 50 0 3.5 2.1 nd controls Control 250 50 none Control_DT_2 50 0 3.4 2.0 nd controls Control 250 50 none Control_DT_3 50 0 3.3 1.8 nd controls Standard 250 50 none US_40_1 nd nd nd -2.34 -4.52 controls Standard 250 50 none US_40_2 nd nd nd -3.21 -4.52 controls Standard 250 50 none US_40_3 nd nd nd -3.19 -4.52 controls Standard 250 50 none US_41_1 nd nd nd 46.22 47.57 controls Standard 250 50 none US_41_2 nd nd nd 48.90 47.57 controls Standard 250 50 none US_41_3 nd nd nd 48.71 47.57