Results 11 to 20 of about 29,939 (265)

The Occurrence, Pathways, and Risk Assessment of Heavy Metals in Raw Milk from Industrial Areas in China

open access: yesToxics, 2021
This study evaluated chromium (Cr), arsenic (As), cadmium (Cd), and lead (Pb) contamination in raw milk from industrial areas in China, identified the possible pathways of heavy metals from the environment to raw milk, and made a risk assessment of the ...
Chuanyou Su   +8 more
doaj   +1 more source

Determination of Arsenic in the Rainbow Trout Muscle and Rice Samples

open access: yesCzech Journal of Food Sciences, 2009
The content of arsenic was determined in the rainbow trout muscle (Oncorhynchus mykiss) and in rice samples. The method of atomic absorption spectrometry with hydride generation (HG-AAS) in graphite furnace was used for total arsenic determination ...
V. Harkabusová   +3 more
doaj   +1 more source

GREENNESS AND WHITENESS PROFILES OF UV/VIS PHOTOCHEMICAL VAPOR GENERATION CAPACITIVELY COUPLED PLASMA MICROTORCH OPTICAL EMISSION SPECTROMETRY METHOD FOR MERCURY DETERMINATION AND SPECIATION IN FOOD AND WATER

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2022
The aim of the study was the evaluation of greenness and whiteness profiles of UV/Vis photo-induced cold vapor generation (UV/Vis-PVG) capacitively coupled plasma microtorch optical emission spectrometry methods for Hg determination and speciation as ...
Eniko COVACI, Tiberiu FRENTIU
doaj   +1 more source

A novel selenocystine-accumulating plant in selenium-mine drainage area in Enshi, China. [PDF]

open access: yesPLoS 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

open access: yesFrontiers 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

Analysis of Four Arsenic Species in Different Types of Rice Based on Liquid Chromatography-Atomic Fluorescence Spectrometry

open access: yesLiang 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

Determination of mercury in feed by hydride generation atomic fluorescence spectrometer without memory effect

open access: yesSiliao 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

open access: yesRomanian 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

Recent Studies on the Speciation and Determination of Mercury in Different Environmental Matrices Using Various Analytical Techniques

open access: yesInternational 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

open access: yesYankuang 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

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