Marine Chemistry Laboratory
University of WashingtonSchool of Oceanography
The Marine Chemistry Laboratory at the School of Oceanography provides marine and freshwater analytical services to the University and oceanographic communities. We are an accredited laboratory with the State of Washington. The lab specializes in the analyses of nutrients, total N and total P, salinity, chlorophyll, oxygen, DOC in aqueous samples, and OC in particulate samples.
Prices and other analyses are listed below:
| ANALYSIS | HOMEBASE OPERATIONS | SHIPBOARD ANALYSES |
|---|---|---|
|
Analyses are run on Guildline models 8400B and 8410 Portasal - Calibration is with IAPSO Standard Seawater |
Analyses are run on Guildline models 8400B and 8410 Portasal - Calibration is with IAPSO Standard Seawater |
|
|
Oxygen |
Analyses are run using the Carpenter (modified Winkler) with a Metrohm 765 Dosimat buret |
Analyses are run using the Carpenter (modified Winkler) with a Metrohm 765 Dosimat buret |
|
Nutrients (phosphate, silicate, nitrate, nitrite, & ammonia) |
Analyses and calibration follow the protocols of the WOCE Hydrographic Program using a Seal Analytical AA3 |
Analyses and calibration follow the protocols of the WOCE Hydrographic Program using a Technicon AAII system, or Seal Analytical AA3 |
|
Chlorophyll a and phaeopigments |
Analysis is acetone extraction and fluorometric detection on a Turner Designs TD-700 fluorometer |
|
|
Dissolved Organic Carbon
(aqueous samples) |
Analysis is with a Shimadzu TOC-Vcsh DOC analyzer |
|
|
Total Organic Carbon, Nitrogen, and Hydrogen (solid samples) |
Analysis is by Exeter Analytical CE-440 CHN analyzer |
Oceanography chemical analyses price list:
Labor rate: $88/hr.
|
Nutrients: (PO4, Si(OH)4, NO3, NO2, NH3) all ions included in base price |
$16.80 each $27.50 each if dilution required Syringe filters for samples: $2.50 each |
|
Total N&P |
$18.70 ea.
|
|
Chlorophyll a |
$13.80 each |
|
Dissolved Organic Carbon (DOC) |
Filtered liquid sample $26.40 each C clean filters $0.88 each C clean sample vial $2.20 each |
|
Particulate Carbon and Nitrogen (CHN) |
On 25 mm filters $42.40 each Sediment samples: $51.20 each Prepped samples: $13.20 ea. C clean filters $0.88 each |
|
Salinity |
$19.30 each |
|
TSS |
$15.20 each |
|
Turbidity |
$7.60 each |
|
Oxygen titrations |
$16.50 each 1L suite of the six oxygen reagents: $506.00 |
Important notes:
- Add 15.6% to the total cost for any work done not charged to a UW budget.
- Supplies are not always available on short notice, so plan ahead and give them at least one full week's notice when requesting supplies or reagents.
- Logsheets must be provided with the samples. They should include budget numbers, sample identification numbers, sampling locations, filtration volumes (where appropriate), and whether the sample contains fresh or marine water.
- Business is very good in the lab, so short turnaround time for sample analyses must be discussed with Kathy or Aaron ahead of time.
- Clients will be charged for any shipping costs associated with supplies and coolers
- We will not accept or process any samples fixed with HgCl, Azide, or radioisotopes of any kind!
- C14 labelled samples are not allowed in the building, no exceptions.
Accreditation Codes and Detection Limits
| Analysis | Method References | EPA/SM# | NELAC Code | MDLs |
|---|---|---|---|---|
| PO4 | UNESCO(1994) | EPA 365.5_1.4_1997 | WM920270 | 0.014uM, 0.0004mg/L |
| SiOH4 | UNESCO(1994) | EPA 366 | WM920240 | 0.23uM, 0.0063mg/L |
| NO3 | UNESCO(1994) | EPA 353.4_2_199 | 10068209 | 0.288uM, 0.0040mg/L |
| NO2 | UNESCO(1994) | EPA 353.4_2_1997 | 10068209 | 0.011uM, 0.0002mg/L |
| NH4 | UNESCO(1994) | EPA 349 | WM920220 | 0.047uM, 0.0007mg/L |
| Total N | Valderrama(1981) | SM 4500-P J | WM920270 | 0.68uM, 0.0095mg/L |
| Total P | Valderrama(1981) | SM 4500-P J | WM920270 | 0.014uM, 0.0004mg/L |
| Salinity | UNESCO(1994) | SM 2520 B-93 | 20040055 | 0.002PSU |
| Ckhlorophyll_a | UNESCO(1994) | EPA 445 | WM100080 | 0.02ug/L |
| DOC | UNESCO(1994) | SM 5310 B-00 | 20137819 | 100ug/L |
| POC | UNESCO(1994) | EPA 440.0 | 10081206 | 10ug |
| PN | UNESCO(1994) | EPA 440.0 | 10081206 | 1ug |
| Dissolved O2 | UNESCO(1994) | EPA 360.2 | 50001600 | 0.5uM kg-1 |
UNESCO (1994). Protocols for the joint global ocean flux study (JGOFS) core measurements. Vol. 29.
Valderrama (1981). The simultaneous analysis of total nitrogen and total phosphorus on natural waters. Mar.Chem (10), 109-122.
Please contact Aaron Morello, Supervisor (aaronm [at] uw [dot] edu) and/or Katherine Krogslund (2kkrog [at] gmail [dot] com) and PRIOR to sampling to discuss your project/sampling plans.
Shipping Address:
University of Washington
Marine Chemistry Laboratory
1492 NE Boat St.
Ocean Sci Bldg, Rm 346
Seattle, WA 98105
Customer Service: (206) 543-9235(Lab Phone)
Financial Particulars:
IRS/TaxID/Entity Number: 91-6001537
Cage Code: 0MCA1 (first character is a zero)
DUNS Number: 605799469
Make payments to: University of Washington
Mail payments to:
University of Washington
Invoice Receivables
PO Box 94224
Seattle, WA 98124
