X-Vane: A sampling assembly combining a Niskin-X bottle and titanium frame vane for trace metal analysis of sea water

Zhang, Ruifeng; Zhang, Jing; Ren, Jianqiang; Li, Jia; Li, Faming; Wang, Zhaowei; Zhu, Xunchi

doi:10.1016/j.marchem.2015.10.006

Cited by 17 publications

(16 citation statements)

References 20 publications

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“…The internal black rubber springs were also replaced with silicon springs before the cruise. In order to avoid contamination from the research vessel and/or hydrowire, the sampling sites were located distant from sewage outfalls, and the angle between the ship and the current was appropriately adjusted [ Zhang et al ., ]. Discrete water samples were taken for measurements of nutrients and dissolved Mn at depths determined by the CTD readings.…”

Section: Methodsmentioning

confidence: 99%

Geochemical behavior of dissolved manganese in the East China Sea: Seasonal variation, estuarine removal, and regeneration under suboxic conditions

Wang

Ren

Jiang

et al. 2016

Geochem Geophys Geosyst

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To better understand the geochemical cycle of dissolved manganese (Mn) in the East China Sea (ECS), the distribution of dissolved Mn across the ECS was investigated during three field studies in 2011 (May, August, and November). The concentration of dissolved Mn decreased across the ECS with distance from the coast. Mn‐rich ECS shelf waters could export to the Kuroshio Waters, and had the potential to influence the northwest Pacific Ocean as well as the Japan Sea. The Kuroshio Waters were devoid of dissolved Mn, so its incursion could be tracked as it entered the ECS continental shelf region (approximately 50 m isobath). Seasonal variations of dissolved Mn in the ECS were significant, with the highest concentrations occurring in summer. Dissolved Mn in the Changjiang Estuary was nonconservative, and significant quantities were removed by net sorption onto suspended particulate matter. A model describing the sorption processes was applied to data for the Changjiang Estuary. Regeneration of dissolved Mn took place in near‐bottom waters of the suboxic zone in August 2011, following extensive consumption of oxygen. The benthic flux of dissolved Mn was estimated based on Mn concentrations in the overlying waters and the near‐bottom waters. A preliminary box model was established to develop a dissolved Mn budget for the ECS. Based on the dissolved Mn content in the ECS and the total input flux, a residence time of 76–350 days for dissolved Mn in the ECS was inferred.

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Section: Methodsmentioning

confidence: 99%

Geochemical behavior of dissolved manganese in the East China Sea: Seasonal variation, estuarine removal, and regeneration under suboxic conditions

Wang

Ren

Jiang

et al. 2016

Geochem Geophys Geosyst

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“…A Sea‐Bird 911plus instrument was also used to measure the profiles of temperature, salinity, and dissolved oxygen in the water column. After the Niskin‐X bottles were recovered, they were immediately transferred to a clean sample drawing enclosure (Zhang et al, ). The enclosure was covered with a clean polythene plastic curtain and assembled with three class‐100 mini air cleaning units (MAC‐60p, Suzhou Antai Airtech Co.) on top to ensure a clean environment.…”

Section: Methodsmentioning

confidence: 99%

“…After sampling, bottles were sealed and stored in double plastic bags and returned to the laboratory, then filtered and acidified using the method described above. (Chien et al, 2017;Guo et al, 2006;Ren et al, 2015;Wei et al, 2012;Ye et al, 2016;Zhou et al, 2015).…”

Section: Sample Collection and Processmentioning

confidence: 99%

“…In a cruise in 2003, Fang et al (2006) demonstrated an ocean outfall area off the northern coast of Taiwan, with the DPb concentration ranging from 90 to 430 pmol/kg. In addition, during the cruise in 2011, there were abnormally high concentrations of dissolved Al northeast of Taiwan that also revealed a potential terrestrial input (Ren et al, 2015). Further studies are needed to address this issue.…”

Section: Journal Of Geophysical Research: Oceansmentioning

confidence: 99%

“…Recent studies (Guo et al, 2006;Zhou et al, 2015) have revealed that the extensive water exchange between the ECS and KW occurs through upwelling and frontal processes, highlighting the ECS as a dynamic area for studying shelf-deep-ocean exchanges. Studies have also demonstrated the contribution of the ECS shelf to the pumping of terrestrial materials to the Sea of Japan/East Sea and the Western Pacific Ocean (Ren et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Dissolved Lead in the East China Sea With Implications for Impacts of Marginal Seas on the Open Ocean Through Cross‐Shelf Exchange

Jiang

Zhang

et al. 2018

JGR Oceans

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The distribution of lead (Pb) in the ocean is influenced by human activities. During a cruise in the East China Sea (ECS) in August 2013, we investigated six representative stations and gave the first systematic description of dissolved lead (DPb) distributions after the phasing out of leaded gasoline in China. The DPb concentration in the ECS ranged from 23.8 to 96.7 pmol/kg, with the highest concentrations observed at the surface of the middle shelf, while the lowest concentrations were determined to be in deep samples collected at the shelf break. Vertical profiles of DPb vary with geographic locations, seawater turbidity, hypoxic conditions, atmospheric deposition, and hydrographic regimes. As one of the most important western boundary currents, Kuroshio receives an additional 10–20 pmol/kg of DPb from the ECS shelf through a cross‐shelf exchange process, and approximately (1.1–1.7) × 109 g/yr of DPb was exported through the shelf break area, which will directly join the North Pacific circulation based on a preliminary box model. In addition, the ECS shelf exported another 1.4 × 109 g/yr of DPb from the Tsushima/Korea Strait, which has the potential to influence the northwestern Pacific Ocean as well as the Sea of Japan/East Sea. A residence time of 2–3 months for DPb in the ECS was inferred.

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Sampling approaches for trace element determination in seawater

Salamat,

Soylak

2024

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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X-Vane: A sampling assembly combining a Niskin-X bottle and titanium frame vane for trace metal analysis of sea water

Cited by 17 publications

References 20 publications

Geochemical behavior of dissolved manganese in the East China Sea: Seasonal variation, estuarine removal, and regeneration under suboxic conditions

Geochemical behavior of dissolved manganese in the East China Sea: Seasonal variation, estuarine removal, and regeneration under suboxic conditions

Dissolved Lead in the East China Sea With Implications for Impacts of Marginal Seas on the Open Ocean Through Cross‐Shelf Exchange

Sampling approaches for trace element determination in seawater

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