Detection of impurities in m-cresol purple with Soft Independent Modeling of Class Analogy for the quality control of spectrophotometric pH measurements in seawater [0.03%]
Soft Independent Modeling of Class Analogy在海水中分光光度法测量pH值的质量控制中检测m-甲基紫杂质
Michael Fong,Yuichiro Takeshita,Regina Easley et al.
Michael Fong et al.
Accurate spectrophotometric pH measurements in seawater are critical to documenting long-term changes in ocean acidity and carbon chemistry, and for calibration of autonomous pH sensors. The recent development of purified indicator dyes gre...
Kari St Laurent,Mark Cantwell,Rainer Lohmann
Kari St Laurent
Black carbon (BC) is ubiquitous in pelagic sediments and presumed to have an older radiocarbon age due to long ocean residence times and pre-aging in terrestrial soils. Here, we analyzed sediments from five regions in the subtropical Atlant...
Purified meta-Cresol Purple dye perturbation: How it influences spectrophotometric pH measurements [0.03%]
纯化的间甲酚紫染料扰动及其对分光光度法测定pH值的影响
Xinyu Li,Maribel I García-Ibáñez,Brendan R Carter et al.
Xinyu Li et al.
Ocean acidification, a phenomenon of seawater pH decrease due to increasing atmospheric CO2, has a global effect on seawater chemistry, marine biology, and ecosystems. Ocean acidification is a gradual and global long-term process, the study...
Bioaccumulation of methylmercury in a marine diatom and the influence of dissolved organic matter [0.03%]
溶解有机物对海洋硅藻甲基汞生物累积的影响
Cheng-Shiuan Lee,Nicholas S Fisher
Cheng-Shiuan Lee
The largest bioconcentration step of most metals, including methylmercury (MeHg), in aquatic biota is from water to phytoplankton, but the extent to which dissolved organic matter (DOM) affects this process for MeHg largely remains unexplor...
Factors controlling the photochemical degradation of methylmercury in coastal and oceanic waters [0.03%]
控制沿海和海洋水域中甲基汞光化学降解的因素
Brian P DiMento,Robert P Mason
Brian P DiMento
Many studies have recognized abiotic photochemical degradation as an important sink of methylmercury (CH3Hg) in sunlit surface waters, but the rate-controlling factors remain poorly understood. The overall objective of this study was to imp...
Seasonal variations in C:N:Si:Ca:P:Mg:S:K:Fe relationships of seston from Norwegian coastal water: Impact of extreme offshore forcing during winter-spring 2010 [0.03%]
2010年冬季-春季极端的外海海水入侵对挪威沿岸海域浮游颗粒有机物C:N:P:S:i:K:Mg:Ca:Fe元素组成季节变化的影响
Svein Rune Erga,Stig Bjarte Haugen,Gunnar Bratbak et al.
Svein Rune Erga et al.
The aim of this study was to reveal the relative content of C, N, Ca, Si, P, Mg, K, S and Fe in seston particles in Norwegian coastal water (NCW), and how it relates to biological and hydrographic processes during seasonal cycles from Octob...
Conservation of dissolved organic matter molecular composition during mixing of the deep water masses of the northeast Atlantic Ocean [0.03%]
东北大西洋深水质量混合过程中溶解有机物分子组成的保护作用研究
Roberta L Hansman,Thorsten Dittmar,Gerhard J Herndl
Roberta L Hansman
Characterizing the composition of marine dissolved organic matter (DOM) is important for gaining insight into its role in oceanic biogeochemical cycles. Using Fourier transform ion cyclotron resonance mass spectrometry, we analyzed the mole...
The effect of sediment mixing on mercury dynamics in two intertidal mudflats at Great Bay Estuary, New Hampshire, USA [0.03%]
沉积物混合作用对美国新罕布什尔州大湾河口两块潮间带泥滩汞动态的影响
Lauren E Brown,Celia Y Chen,Mary A Voytek et al.
Lauren E Brown et al.
Estuarine sediments store particulate contaminants including mercury (Hg). We studied Hg sediment dynamics in two intertidal mudflats at Great Bay estuary, NH, over multiple years. Sediments at both mudflats were physically mixed down to ~1...
Sources of water column methylmercury across multiple estuaries in the Northeast U.S [0.03%]
美国东北部多条河口上水柱甲基汞的来源
Prentiss H Balcom,Amina T Schartup,Robert P Mason et al.
Prentiss H Balcom et al.
Estuarine water column methylmercury (MeHg) is an important driver of mercury (Hg) bioaccumulation in pelagic organisms and thus it is necessary to understand the sources and processes affecting environmental levels of MeHg. Increases in wa...
An examination of the factors influencing mercury and methylmercury particulate distributions, methylation and demethylation rates in laboratory-generated marine snow [0.03%]
实验室生成的海洋雪中的颗粒分布、甲基汞的甲基化和去甲基化速率的影响因素分析研究
Veronica L Ortiz,Robert P Mason,J Evan Ward
Veronica L Ortiz
In the marine environment, settling particulates have been widely studied for their role as effective vertical transporters of nutrients and metals scavenged from the euphotic zone to the benthos. These particulates are composed of transpar...