UC Santa CruzStable Isotope Laboratory
SIL Home Analyses Research People Publications Photos
A-Z Index | Find People A-Z Index Find People

SIL Home

University of California
Stable Isotope Laboratory
Earth and Planetary Sciences
1156 High Street Santa Cruz, CA 95064

Lab: (831) 459-5751
Office: (831) 459-5857
Fax: (831) 459-3074

Visiting the Lab

Isotopic Analyses

Instrument Scheduling

Instrument Use Forms

Instruments Live!

Kiel Live Data
Dick Tracy Live Data
Columbo Live Data

SIL Standards Table

CIAAW website


Merck Chem. Index

Periodic Table


EOP STEM Transfer Weekend 2018

UCSC-SIL Undergraduate Reseach Grants


UCSC SIL History

EH&S Lab Safety

Lab Safety Manual
Lab Safety Training Classes
EH&S Waste Tags
SIL Chemical Inventory
Safety Data Sheets
Safety Training Checklist

General EA method descrition for elemental analyses done at UCSC SIL.

Carbon and nitrogen isotopic and elemental compostion was determined by Dumas combustion using a Carlo Erba 1108 elemental analyzer coupled to a ThermoFinnigan Delta Plus XP isotope ratio mass spectrometer. Analyses were run at the University of California, Santa Cruz Stable Isotope Laboratory. Analytical precison of internationally calibrated in-house standards is better than 0.2 permil for both d13C and d15N. Sample isotopic values are corrected for size, drift and source stretching effects. Carbon and nitrogen elemental composition is estimated based on standards of known elemental composition. Precision of these known compounds is determined to better than 1%.