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UC Davis Plant Sciences


F.A.Q.

Table of Contents

  1. Where is my dataset?
  2. Can you rush my samples?
  3. What is the turnaround time for sample analysis?
  4. Can I pay by credit card?
  5. Do you offer a discount for large sample sets?
  6. Do you require a Purchase Order?
  7. Can I send my samples?
  8. How do I send samples?
  9. I lost my data/weightsheets. Can you send me another copy?
  10. Where are you located at UC Davis?
  11. I have a question. Who do I contact?
  12. Did you get my e-mail? I haven't heard a response.

Where is my dataset?
Sample data is processed in the order it was received. We do make an effort to meet our posted turnaround times for each analysis type. Data is sent via e-mail in an Excel file from the @ucdavis.edu domain, so remember to check your junk mail filters. The turnaround times listed for each analysis are approximate for properly prepared samples. Large sample sets (>500 samples), poorly prepared samples, wood, salts, large filters, highly enriched, or samples that exceed our normal sample size range will delay sample analysis and data processing.


Can you rush my samples?

“Bad planning on your part does not constitute an emergency on my part.” -Proverb
"You rush a miracle man, you get rotten miracles." -Miracle Max, "The Princess Bride"

In general, yes, we can expedite the analysis and data processing of an average sample set, but please do not make it a habit! Please make reasonable requests that apply to the rules of space and time! Medium to large sample sets (>250 samples), poorly prepared samples, wood, salts, large filters, highly enriched, or samples that exceed our normal sample size range generally cannot be rushed. Prior to shipping your samples, please contact the SIF to request a rush on your sample analysis. Rush requests made after sample delivery may be declined if the deadline is too short (i.e. < 1 month turnaround).

What is the turnaround time for sample analysis?
Samples are run in the order they are received. The average turnaround time for your data depends on the type of analysis and can be found on each isotope's analysis pricing page. Please contact the SIF for more information or for rush orders.


Can I pay by credit card?
Yes, the SIF now accepts payment by credit card. However, please be aware that invoices for credit card payments are generated using a different system than check and wire transfer invoices. It is a lot of paperwork to switch payment type once an invoice is produced, so please select your payment type ahead of time. DO NOT SEND ANY CREDIT CARD INFORMATION via e-mail, phone, fax, letter, or Analysis Order Form to the SIF. We cannot guarantee the safety of your information. To pay by credit card for new orders, please indicate your intention to pay by credit card on the newest version of the Analysis Order Form.


Do you offer a discount for large sample sets?
No, the SIF does not offer discounts for large orders, but we hope you will find our analysis prices to be competitive.

University of California clients should pay by FOPAL or recharge account to receive the UC rate. FOPAL/recharge accounts can be noted on your Analysis Order Form in the Billing or Notes section to facilitate payment. Request UC Price List


Do you require a Purchase Order?
We do not require a Purchase Order to analyze your samples, but we do find that having a PO can help with invoice payment by your institution.


Can I send my samples?
For most solid, gas, and water samples that have been fully prepared per our website recommendations, you are welcome to ship your samples at your convenience. Please include hardcopies of your Analysis Order Form and Sample List within your shipment, and email the files to sif@ucdavis.edu to let us know the samples are on their way.

 

Any samples differing from our website recommendations, of extremely high concentrations or enrichment, below LOQ concentrations, or NO3 water samples without an appointment, must contact the SIF prior to shipment to discuss your samples further.


How do I send samples?

Complete an Analysis Order Form and Sample List with your sample and billing information. E-mail the completed files to sif@ucdavis.edu and include a hard copy with your shipment. Any shipments containing soil, forest litter, wood or plant compost, humus, and earthworm castings require a soil permit. Ship your samples and paperwork to: ATTN: Joy Matthews (phone: 530-752-8100); UC Davis Stable Isotope Facility; Department of Plant Sciences; 387 N Quad - Room 1210 PES; California, 95616 USA.

 

Effective August 1, 2011, due to campus wide budget reductions, the UC Davis Mail Division will provide mail service to the SIF on Mondays, Wednesdays, and Fridays only. This reduction affects interoffice and US Mail (standard post). This reduction does not affect private carrier delivery, including FedEx, UPS, and DHL. The SIF highly recommends that shipments requiring special handling, including gas and refrigerated samples, should be shipped using a major carrier such as FedEx, UPS, and DHL. Clients are responsible for all import/export customs fees.

 

I lost my data/weightsheets. Can you send me another copy?

The SIF keeps all submitted paperwork, data files, and invoices for 3 years minimum, 6 years maximum. If you lose your hardcopy weight sheets or your data files, we can help you! Request Lost Data/Paperwork


Where are you located at UC Davis?
The Stable Isotope Facility is located in the Plant and Environmental Sciences Bldg, room 2251 / 2255 PES, with our trace gas and compound specific lab in 3112 / 3116 PES.  The PES Bldg is on the north side of campus. Visitor parking can be found in Lot#15, Lot#17, and the North Entry parking structure. Our normal lab hours are 8am - 5pm Monday thru Friday. You are welcome to drop off your samples in person. Please contact us ahead of time if you would like a tour of our lab.

 

I have a question. Who do I contact?
Elvira Delgado - Questions regarding analysis of water 18O and D/H by Laser-Absorption Spectroscopy

Katharine Pecsok - Questions and appointments related to the bacterial denitrification preparation
Chris Yarnes – Phone: 530-754-7517 - Questions regarding Compound Specific Isotope Analysis (CSIA) by GC-C-IRMS and sulfur analysis.

Rick Doucett – Phone: 530-754-7517 - Questions regarding NO3 data, trace gas analysis, and DIC analysis.

Gabriela Robledo - Phone: 530-754-7517 - Requests for estimates, invoices, payments, credits, EFT wire information, and general billing.
Joy Matthews – Phone: 530-752-8100 - Manager
All other questions - Phone: 530-752-8100

 

Did you get my e-mail? I haven't heard a response.
The employees at the SIF try to answer e-mail questions within 1-2 days. More complex questions may require time to research the answer. E-mails received after hours, on weekends, and on holidays will delay a response. On rare occasions, incoming emails are filtered as junk mail, so try resending your request if you have not received a reply within one week.

Recently UC Davis has ended up on some Real Time Blocking lists by various internet service providers.  So far SBCglobal.net, ATT, and AOL have blocked e-mails from UC Davis addresses, which includes the SIF. If you use these service providers to contact the SIF, you will not be able to receive our reply. Please use a different service provider to contact the SIF, or call us directly at 530-752-8100.






 
e-mail: sif@ucdavis.edu | phone: 530-752-8100 | fax: 530-752-4361
UC Davis Stable Isotope Facility | Department of Plant Sciences
One Shields Avenue | Davis, California, 95616 | USA