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Titolo:
ANALYTICAL INTERCOMPARISON RESULTS FROM THE 1990 INTERGOVERNMENTAL-OCEANOGRAPHIC-COMMISSION OPEN-OCEAN BASE-LINE SURVEY FOR TRACE-METALS - ATLANTIC-OCEAN
Autore:
LANDING WM; CUTTER GA; DALZIEL JA; FLEGAL AR; POWELL RT; SCHMIDT D; SHILLER A; STATHAM P; WESTERLUND S; RESING J;
Indirizzi:
FLORIDA STATE UNIV,DEPT OCEANOG TALLAHASSEE FL 32306 OLD DOMINION UNIV,DEPT OCEANOG NORFOLK VA 23529 FISHERIES & OCEANS CANADA,BEDFORD INST OCEANOG DARTMOUTH NS B2Y 4A2 CANADA UNIV CALIF SANTA CRUZ,INST MARINE SCI SANTA CRUZ CA 95064 BUNDESAMT SEESCHIFFAHRT & HYDROG,LAB SULLDORF W-2000 HAMBURG 55 GERMANY UNIV SO MISSISSIPPI,CTR MARINE STUDIES BAY ST LOUIS MS 39529 UNIV SOUTHAMPTON,DEPT OCEANOG SOUTHAMPTON SO9 5NH HANTS ENGLAND CHALMERS INST TECHNOL,DEPT ANALYT & MARINE CHEM S-41296 GOTHENBURG SWEDEN UNIV GOTHENBURG S-41296 GOTHENBURG SWEDEN UNIV HAWAII MANOA,SCH OCEAN & EARTH SCI & TECHNOL,DEPT OCEANOG HONOLULU HI 96822
Titolo Testata:
Marine chemistry
fascicolo: 4, volume: 49, anno: 1995,
pagine: 253 - 265
SICI:
0304-4203(1995)49:4<253:AIRFT1>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLOW-INJECTION ANALYSIS; NORTH-ATLANTIC; SEA-WATER; DISSOLVED MANGANESE; PACIFIC-OCEAN; SEAWATER; CADMIUM; COPPER; BIOGEOCHEMISTRY; NICKEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
W.M. Landing et al., "ANALYTICAL INTERCOMPARISON RESULTS FROM THE 1990 INTERGOVERNMENTAL-OCEANOGRAPHIC-COMMISSION OPEN-OCEAN BASE-LINE SURVEY FOR TRACE-METALS - ATLANTIC-OCEAN", Marine chemistry, 49(4), 1995, pp. 253-265

Abstract

''Dissolved'' (< 0.4 mu m filtered) and ''total dissolvable'' (unfiltered) trace element samples were collected using ''clean'' sampling techniques from four vertical profiles in the eastern Atlantic Ocean on the first IOC Trace Metals Baseline expedition. The analytical resultsobtained by 9 participating laboratories for Mn, Fe, Co, Ni, Cu, Zn, Cd, fb, and Se on samples from station 4 in the northeast Atlantic have been evaluated with respect to accuracy and precision (intercomparability). The data variability among the reporting laboratories was expressed as 2 X SD for a given element and depth, and was comparable to the 95% confidence interval reported for the NASS seawater reference standards (representing analytical variability only). The discrepancies between reporting laboratories appear to be due to inaccuracies in standardization (analytical calibration), blank correction, and/or extraction efficiency corrections. Several of the sampling bottles used at this station were not adequately pre-cleaned (anomalous Pb results). The sample filtration process did not appear to have been a source of contamination for either dissolved or particulate trace elements. The trace metal profiles agree in general with previously reported profiles from the Atlantic Ocean. We conclude that the sampling and analytical methods we have employed for this effort, while still in need of improvement, are sufficient for obtaining accurate concentration data on most trace metals in the major water masses of the oceans, and to enablesome evaluation of the biogeochemical cycling of the metals.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 20:07:07