dc.contributor.author | Carroll, M. | |
dc.contributor.author | Chigounis, D. | |
dc.contributor.author | Cook, J. | |
dc.contributor.author | Gilbert, S. | |
dc.contributor.author | Johengen, T. | |
dc.contributor.author | Koles, T. | |
dc.contributor.author | McKissack, T. | |
dc.contributor.author | Wells, D. | |
dc.contributor.author | McIntyre, M. | |
dc.contributor.author | Pinchuk, A. | |
dc.contributor.author | Purcell, H. | |
dc.contributor.author | Robertson, C. | |
dc.contributor.author | Schar, D. | |
dc.contributor.author | Smith, G.J. | |
dc.contributor.author | Tamburri, M. | |
dc.date.accessioned | 2019-01-23T21:40:14Z | |
dc.date.available | 2019-01-23T21:40:14Z | |
dc.date.issued | 2007 | |
dc.identifier.citation | Carroll, M.; Chigounis, D.; Cook, J.; Gilbert, S.; Johengen, T.; Koles, T.; McKissack, T.; Wells, D.; McIntyre, M.; Pinchuk, A.; Purcell, H.; Robertson, C.; Schar, D.; Smith, G.J. and Tamburri, M. (2007) Performance Demonstration Statement WET Labs Cycle-P Nutrient Analyzer. Solomons, MD, Alliance for Coastal Technologies, 26pp. (ACTDS03-08). DOI: http://dx.doi.org/10.25607/OBP-351 | en_US |
dc.identifier.other | [UMCES]CBL 08-042 | |
dc.identifier.uri | http://hdl.handle.net/11329/795 | |
dc.identifier.uri | http://dx.doi.org/10.25607/OBP-351 | |
dc.description.abstract | During this Performance Demonstration t
he WET Labs Cycle-P was successfully tested in a
fixed, surface mooring deployment at three test sites including freshwater, brackish water, and saltwater
coastal environments. With the exception of an initial instrument exchange on day 2 of the first field test,
the test instrument functioned continuously for all 4 weeks of each test. Data recovery was 84, 79, and
99% of the total potential for MD, MI, and AK test sites respectively. Several logistical problems
prevented complete execution of all of the quality control testing, but based on the completed blank and
standard test exposures the instrument appeared capable of accurately measuring a wide range of
phosphate concentrations and functioning consistently over a four week interval. There was no apparent
degradation of the on-board reagents or stan
dards over the deployment period.
Extremely low phosphate concentrations at the MD test site did not allow for meaningful data
analysis and there appeared to be a significant impact from biofouling at this site after several weeks. At
the AK test site dir
ect comparisons of instrument to reference sample data were quite variable, ranging
from 0.2 to 4.1 but with an overall mean of 1.5. The offset and variability seemed to improve over time
with much better accuracy during the last two weeks of the deployment. Part of the variability may have
been due to a mismatch in sample timing intervals and resulting averaging of timepoints. At the
Michigan test site, the in situ measured concentrations were much more consistent and accurate. The
instrument to reference sample ratio ranged from 0.3 – 1.9 with an overall mean of 1.04.
Because of the complexity of the tests conducted and the number of variables examined, a
concise summary is not possible. We encourage readers to review the entire document for a
comprehensive understanding of instrument performance and to discuss results with the instrument
manufacturer. The application of any post
-deployment corrections, and manufacturer’s interpretation of
the test results are presented in Appendix 1. In general, however, it appears that the fundamental
technology has the capability to successfully measure phosphate in situ under a variety of field
conditions. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Alliance for Coastal Technologies (ACT) | en_US |
dc.relation.ispartofseries | ACT DS; 03-08 | |
dc.rights | CC0 1.0 Universal | * |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
dc.title | Performance Demonstration Statement WET Labs Cycle-P Nutrient Analyzer. | en_US |
dc.type | Report | en_US |
dc.description.status | Published | en_US |
dc.format.pages | 26pp. | en_US |
dc.description.refereed | Refereed | en_US |
dc.publisher.place | Solomons, MD | en_US |
dc.subject.parameterDiscipline | Biogeochemistry | en_US |
dc.description.currentstatus | Current | en_US |
dc.description.eov | Nutrients | en_US |
dc.description.bptype | Best Practice | en_US |
dc.description.bptype | Standard Operating Procedure | en_US |
obps.contact.contactemail | info@act-us.info | |
obps.contact.contactemail | Johengen@umich.edu | |
obps.resourceurl.publisher | http://www.act-us.info/evaluations.php | en_US |