Analysis of Water
The SIF provides simultaneous analysis of
Submit samples in standard autosampler vials (volume:
Organizing samples
In order to use the correct reference waters, please group water samples into the following classes:
Group |
Delta D |
Delta 18O |
|---|---|---|
Depleted |
Less than -200 |
Less than -25 |
Natural Abundance |
-200 to 0 |
-25 to 0 |
Low Enriched |
0 to +800 |
0 to +100 |
Medium Enriched |
+800 to +2000 |
+100 to +300 |
High Enriched |
Over +2000 |
Over +300 |
Analysis |
Instrument | Turnaround Time (weeks) |
Price per Sample (USD) |
LGR DLT-100 | 4 |
$9.50* |
|
D/H in water |
LGR DLT-100 | 4 |
$9.50* |
LGR DLT-100 |
4 | $15.00* |
*Five sample minimum (due to number of references needed for analysis)
Carefully package groups of exetainers in ziplock bags, small boxes, or their original boxes. Then package these sets in a larger sturdy box with styrofoam peanuts or bubble wrap. Make sure the samples are very secure, loose vials can break during shipping. Coolers will not be returned.
*NEW* Please complete an Analysis Order Form and Sample List for your samples. E-mail the completed forms to sif@ucdavis.edu and include a printed copy with your samples. The SIF uses this form to track your samples and to contact you regarding receipt of samples, data, and invoicing. For mixed analysis requests, we recommend completing a separate form for each type of analysis.
Contact information
UC Davis Stable Isotope Facility
Department of Plant Sciences
One Shields Avenue, Mail Stop 1
Davis, CA 95616
USA
Phone:(530) 754-7517, Fax: (530) 752-4361
E-mail: sif@ucdavis.edu
Choose any standard 2-mL 12x32 mm autosampler vials. The following is a list of the vials we use. Others are available from a variety of suppliers. We suggest screw-top vials with write-on labels. Both regular (8 mm) and wide-mouth (10 mm) closures are acceptable.
Manufacturer / Part# |
Description |
Unit |
National Scientific / |
Vials, 2 mL, 10 mm screw thread, clear glass, write-on patch |
100/PK |
National Scientific / |
Screw caps with septa, 10 mm (PTFE/Silicone/PTFE) |
100/PK |
Microliter Analytical Supplies Inc. / |
Conical bottom vials, 1.8 mL, 8 mm screw thread, clear glass (for samples less than 200 microliters) |
100/PK |
Microliter Analytical Supplies Inc. /
|
Screw caps with septa, 8 mm (PTFE/Silicone/PTFE) |
100/PK |
National Scientific / C4012-25 |
Storage rack for 50 vials, polypropylene, without lid |
EACH |
National Scientific / C4011-25 |
Storage rack for 100 vials, polystyrene, with lid |
EACH |
1) Fill vials no more than half full.
2) Avoid over-tightening caps
3) Note which samples, if any, are enriched and we will run them separately with the appropriate reference waters.
4) Do not freeze water samples in glass vials.
Updated June 18, 2009