1 / 3

Precise Chromium Isotope Measurements by Removal of Arsenides and Spiking Technique

Measurement of Cr isotopes using a 5 ppb Cr standard with increasing 0.63 ppb 53Cr spike. Achieved high precision with R2=0.998, employing sophisticated removal and spiking methods for accurate results.

thisbe
Download Presentation

Precise Chromium Isotope Measurements by Removal of Arsenides and Spiking Technique

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cr Isotope Measurements • Removal of Argides

  2. 8.39 5ppb Cr standard 8.38 80 ml 8.37 155 ml R2 = 0.998 8.36 235 ml 8.35 52Cr/53Cr 8.34 5ppb Cr standard with increasing amounts of 0.63ppb 53Cr spike. 8.33 8.32 8.31 8.3 8.29 0.000000001 0.00000001 0.0000001 0.000001 0.00001 0.0001 0.001 Log Spike/Std concentration ratio 52Cr/53Cr vs Spike/Std concentration (Errors 2 sigma St. Dev.) 786 ml

  3. 0.06385 TIMS External normalization Taylor et.al 1992 ISOPROBE HEX-MULTICOLLECTOR Cu NORMALIZED 63/65 2.2795 0.06375 54Fe/56Fe TIMS DOUBLE SPIKE 0.06365 NTIMS Walczyk (1997) 0.06355 0 1 2 3 4 5 Fe Isotope Measurements

More Related