Stable Isotope Laboratory - Services and charges

**Solid Materials Analytical Services**
SAMPLE TYPE	ISOTOPE^*	CHARGE PER SAMPLE
Bulk Organic Matter	δ¹⁵N δ¹³C δ¹⁵N & δ¹³C δ³⁴S	$ 10.00 $ 10.00 $ 15.00 $ 20.00	Sample Requirements	Method
NH₄ & NO₃ Salts	δ¹⁵N	$ 10.00	Sample Requirements
Particulates Filters	δ¹⁵N δ¹³C δ¹⁵N & δ¹³C	$ 15.00 $ 15.00 $ 20.00	Sample Requirements
NH₄ Diffusion Filters	δ¹⁵N	$ 10.00	Sample Requirements

^*Total N, %N, Total C, %C, Total S, %S provided upon request at no extra charge.

**Solid Materials Preparation Services**
SERVICE	CHARGE PER SAMPLE
Drying & Grinding	$ 10.00	Method
Acid Treatment	$ 10.00	Method
Sample Weighing & Packing	$ 3.50	Method

**Dissolved Molecular Species Analytical Services**
SAMPLE TYPE	ISOTOPE	CHARGE PER SAMPLE
NH4	δ^15N	Contact Us	Sample Requirements	Method
NO3	δ¹⁵N	Contact Us	Sample Requirements	Method
DIC	δ¹³C	$20.00	Sample Requirements	Method
DOC	δ¹³C	$20.00
DIC-DOC	δ¹³C - δ¹³C	$30.00
Dissolved O2-Ar	δ¹⁷O & δ¹⁸O	Contact Us	Sample Requirements	Method

**Derivatized Organics Analytical Services**
SAMPLE TYPE	ISOTOPE	CHARGE PER SAMPLE
Compound-specific C	δ¹³C	Contact Us	Sample Requirements	Method
Compound-specific N	δ¹⁵N	Contact Us		Method
Compound-specific H	δ²H	Contact Us		Method

**Liquids Analytical Services**
SAMPLE TYPE	ISOTOPE	CHARGE PER SAMPLE
Water	δ¹⁸O δ²H	$15.00 $20.00	Sample Requirements	Method

**Pure Gases Analytical Services**
SAMPLE TYPE	ISOTOPE	CHARGE PER SAMPLE
Pure N₂ Gas	δ¹⁵N	$15.00	Sample Requirements	Method
Pure CO₂ Gas	δ¹³C δ¹³C & δ¹⁸O	$15.00 $20.00	Sample Requirements	Method

**Ambient Gases Analytical Services**
SAMPLE TYPE	ISOTOPE	CHARGE PER SAMPLE
N₂ Ambient in Air	δ¹⁵N	$15.00	Sample Requirements	Method
CO₂ Ambient in Air	δ¹³C δ¹³C & δ¹⁸O	$15.00 $15.00
CH₄ Ambient in Air	δ¹³C	$20.00
N₂O Ambient in Air	δ¹⁵N δ¹⁸O δ¹⁵N & δ¹⁸O	$20.00 $20.00 $25.00