Results 21 to 30 of about 1,742,776 (288)
A novel selenocystine-accumulating plant in selenium-mine drainage area in Enshi, China. [PDF]
PLoS ONE, 2013 Plant samples of Cardamine hupingshanesis (Brassicaceae), Ligulariafischeri (Ledeb.) turcz (Steraceae) and their underlying top sediments were collected from selenium (Se) mine drainage areas in Enshi, China.
Linxi Yuan +5 more
doaj +1 more source
Analysis of Trace Elements in Human Brain: Its Aim, Methods, and Concentration Levels
Frontiers in Chemistry, 2019 Trace elements play a crucial role in many biochemical processes, mainly as components of vitamins and enzymes. Although small amounts of metal ions have protective properties, excess metal levels result in oxidative injury, which is why metal ion ...
Cezary Grochowski +10 more
doaj +1 more source
Liang you shipin ke-ji, 2023 A fast analytical protocol for the simultaneous analysis of As(Ⅲ), As(Ⅴ), DMA and MMA in purple rice, red rice and common brown rice was established based on liquid chromatography-atomic fluorescence spectrometry. For the first time, three mobile phases (
YANG Huan +3 more
doaj +1 more source
Comparison of Alternating Variable Search and Simple Methods of Optimisation for Inductively Coupled Plasma Optical Emission and Atomic Fluorescence Spectrometry [PDF]
, 1989 The performance of several cyclic alternating variable search (AVS) optimisation methods are compared with two simplex methods with respect to the number of changes of variable required to search a model two-factor response space.
Tyson, Julian +3 more
core +3 more sources
Siliao yanjiu, 2023 The study was to use a memory-free hydride generation atomic fluorometer to determine mercury content in feed. The joint developed atomic fluorescence spectrometer breaks through the problem of serious memory effect in determination of trace mercury by ...
WANG Wei-min +6 more
doaj
An overview of methods used for quantification of heavy metal contents in vegetal samples
Romanian Journal of Ecology & Environmental Chemistry, 2021 Continuous monitoring of heavy metals content in vegetal products is a priority for food control and a risk assessment strategy for human health. Having in view the importance of heavy metals surveillance, the aim of this paper is to identify, on the ...
Gina Vasile Scaeteanu +2 more
doaj +1 more source
International Journal of Analytical Chemistry, 2017 This paper reviews the current research on the speciation and determination of mercury by various analytical techniques, including the atomic absorption spectrometry (AAS), voltammetry, inductively coupled plasma optical emission spectrometry (ICP-OES ...
Lakshmi Narayana Suvarapu, Sung-Ok Baek
doaj +1 more source
Research Progress on Sample Preparation Methods and Analytical Techniques for Nickel Laterite
Yankuang ceshi, 2015 With the depletion of common sulphide nickel resources, nickel laterite is becoming more attractive as nickel oxide, nickel matte and nickel-iron, amongst others, can be produced directly.
YAN Na +3 more
doaj +1 more source
Watershed Ecology and the Environment, 2022 The contamination levels and distribution of heavy metals were assessed in riverbed sediments and water column samples from Mura and Kimpulande Rivers, both impacted by copper-cobalt and gold mining activities.
Alex Banze wa Mutombo +9 more
doaj +1 more source
Biophysical approaches for studying viral entry
FEBS Letters, EarlyView.Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley +1 more source