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Hydride generation
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An easy-to-make new working electrode, an ex-in-situ AuF/GCE, was developed for trace As(III) detection. A gold film electrode prepared ex-situ was re-plated in-situ during each arsenic deposition step by adding Au(III) into the analyte solution.
7p
vispiderman
15-06-2023
5
2
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A hybrid Zr/amine-modified mesoporous silica sorbent (SBA/TMPED/Zr-0.5) was proposed to preconcentrate traces of inorganic As from drinking water before its flow injection hydride generation atomic absorption spectrometry (FI HG AAS) determination.
8p
vironald
15-12-2022
6
2
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The lower hydrogen contents and the slower cooling rate generated a larger fraction of radial hydrides, a longer radial hydride length, and a lower ultimate tensile strength and plastic elongation. In addition, the oxidized specimens generated a smaller fraction of radial hydrides and a lower ultimate tensile strength and plastic elongation than the nonoxidized specimens.
10p
minhxaminhyeu5
30-06-2019
12
1
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The hydrogen-charged specimens were heated to four peak temperatures of 250C, 300C, 350C, and 400C, and then cooled to room temperature at cooling rates of 0.3 C/min under three tensile hoop stresses of 80 MPa, 100 MPa, and 120 MPa. The cool-down specimens showed that high peak heatup temperature led to lower hydrogen content and that larger tensile hoop stress generated larger radial hydride fraction and consequently lower plastic elongation.
8p
minhxaminhyeu4
26-06-2019
13
0
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A method for determination of arsenic species in environmental samples have been studied (water and sediment of Nhatrang onshore). The analytical method used was ion-exchange liquid chromatography coupled on-line to atomic absorption pectrometry through hydride generation. It was applied to determination of As species in H3PO4+NH2OH.HCl extracts of sediments. The efficiency of this extraction procedure was studied in details. The sensibility of this investigated method allows both the analysis of As-poor samples and the dilution extracts, of As-rich ones.
12p
uocvong01
24-09-2015
85
4
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