Comparison of procedures for measurements of dissolved gaseous mercury in seawater performed on a Mediterranean cruise

被引：33

作者：

Gårdfeldt, K ^{[1
]}

Horvat, M

Sommar, J

Kotnik, J

Fajon, V

Wängberg, I

Lindqvist, O

机构：

[1] Univ Gothenburg, Dept Chem, S-41296 Gothenburg, Sweden

[2] Jozef Stefan Inst, Dept Environm Sci, Ljubljana, Slovenia

[3] IVL Swedish Environm Res Inst, S-40258 Gothenburg, Sweden

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2002年 / 374卷 / 06期

关键词：

in situ; evasion; phase equilibria; Med-Oceanor;

D O I：

10.1007/s00216-002-1592-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A comparison of manual procedures for measurements of dissolved gaseous mercury (DGM) in seawater was accomplished. The experiments were performed on board the Italian research vessel Urania during July 2000 as a subtask in the CNR "Med-Oceanor Project 2000". Water samples for DGM were collected by Go-Flo bottles and subsequently analysed for DGM on board the ship. Determinations of DGM were made in parallel by two groups using different analytical routines. The two sets of data obtained compare favourably. Based on the fieldwork and an additional laboratory study, analytical procedures are discussed and an optimised method to determine DGM is presented. In addition, a method for automated in situ measurements of DGM positioned in the water body was tested. This method has the potential to simplify studies of DGM dynamics, that is variation in concentration as a function of water temperature and solar radiation etc.

引用

页码：1002 / 1008

页数：7

共 29 条

[1] ABIOTIC REDUCTION OF MERCURY BY HUMIC SUBSTANCES IN AQUATIC SYSTEM - AN IMPORTANT PROCESS FOR THE MERCURY CYCLE [J].

ALLARD, B ;

ARSENIE, I .

WATER AIR AND SOIL POLLUTION, 1991, 56 :457-464

[2] Distribution and transformation of elemental mercury in the St. Lawrence River and Lake Ontario [J].

Amyot, M ;

Lean, DRS ;

Poissant, L ;

Doyon, MR .

CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 2000, 57 :155-163

[3] Production and loss of dissolved gaseous mercury in coastal seawater [J].

Amyot, M ;

Gill, GA ;

Morel, FMM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (12) :3606-3611

[4] In situ high temporal resolution analysis of elemental mercury in natural waters [J].

Amyot, M ;

Auclair, JC ;

Poissant, L .

ANALYTICA CHIMICA ACTA, 2001, 447 (1-2) :153-159

[5] Elemental mercury concentrations and formation rates in the Scheldt estuary and the North Sea [J].

Baeyens, W ;

Leermakers, M .

MARINE CHEMISTRY, 1998, 60 (3-4) :257-266

[6]

BLOOM NS, 1988, ANAL CHIM ACTA, V209, P151

[7] THE BEHAVIOR OF MERCURY IN THE PHYSICAL-ENVIRONMENT [J].

BROSSET, C .

WATER AIR AND SOIL POLLUTION, 1987, 34 (02) :145-166

[8] Photoreduction of mercury in sea water and its possible implications for Hg0 air-sea fluxes [J].

Costa, M ;

Liss, PS .

MARINE CHEMISTRY, 1999, 68 (1-2) :87-95

[9] HEAT CAPACITY OF LIQUID MERCURY BETWEEN 0-DEGREES-C AND 450-DEGREES-C - CALCULATION OF CERTAIN THERMODYNAMIC PROPERTIES OF THE SATURATED LIQUID AND VAPOR [J].

DOUGLAS, TB ;

BALL, AF ;

GINNINGS, DC .

JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1951, 46 (04) :334-348

[10] SUB-NANOGRAM DETERMINATION OF MERCURY BY 2-STAGE GOLD AMALGAMATION AND GAS-PHASE DETECTION APPLIED TO ATMOSPHERIC ANALYSIS [J].

FITZGERALD, WF ;

GILL, GA .

ANALYTICAL CHEMISTRY, 1979, 51 (11) :1714-1720

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