Results 21 to 30 of about 185,109 (394)

Automated online preconcentration system for the determination of trace amounts of lead using Pb-selective resin and inductively coupled plasma-atomic emission spectrometry [PDF]

open access: yes, 2006
An automated sequential-injection online preconcentration system was developed for the determination of lead by inductively coupled plasma - atomic emission spectrometry (ICP-AES). The preconcentration of lead was performed with a minicolumn containing a
A. Sabarudin   +5 more
core   +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

Steps toward accurate large-area analyses of Genesis solar wind samples: evaluation of surface cleaning methods using total reflection X-ray fluorescence spectrometry [PDF]

open access: yes, 2011
Total reflection X-ray fluorescence spectrometry (TXRF) was used to analyze residual surface contamination on Genesis solar wind samples and to evaluate different cleaning methods.
Burnett, Donald S.   +3 more
core   +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

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

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

A field deployable method for a rapid screening analysis of inorganic arsenic in seaweed [PDF]

open access: yes, 2017
The authors thank the support for getting the seaweed samples from the projects funded under the Department of Agriculture, Food and the Marine’s Competitive research programmes in Ireland. Reference number 14 SF 860. The authors thank Corny Brombach for
Bralatei, Edi   +7 more
core   +2 more sources

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

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

Contamination by heavy metals from mining activities: An ecological impact assessment of Mura and Kimpulande Rivers, Democratic Republic of the Congo

open access: yesWatershed 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

Home - About - Disclaimer - Privacy