Number of the records: 1
A modular trap-and-atomizer device with gold absorber for selenium collection after hydride generation
- 1.
SYSNO ASEP 0505805 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title A modular trap-and-atomizer device with gold absorber for selenium collection after hydride generation Author(s) Machado, I. (UY) ORCID
Pistón, M. (UY)
Musil, Stanislav (UIACH-O) RID, ORCID
Dědina, Jiří (UIACH-O) RID, ORCID
Kratzer, Jan (UIACH-O) RID, ORCIDNumber of authors 5 Source Title Colloquium Spectroscopicum Internationale XLI & I Latin American Meeting on LIBS. Book of Abstracts. -, 2019
O.At.3Number of pages 1 s. Publication form Medium - C Action Colloquium Spectroscopicum Internationale /XLI./ & Latin American Meeting on LIBS /I./ CSI XLI Event date 09.06.2019 - 14.06.2019 VEvent location Mexico City Country MX - Mexico Event type WRD Language eng - English Country MX - Mexico Keywords selenium trapping ; gold absorber ; hydride generation Subject RIV CB - Analytical Chemistry, Separation OECD category Analytical chemistry R&D Projects GA18-01116S GA ČR - Czech Science Foundation (CSF) Institutional support UIACH-O - RVO:68081715 Annotation In this work, a novel design of a device to trap hydrides and to volatilize the analyte to be detected by AAS was employed. This device consists of a modular trap-and-atomizer which allows a simple replacement of the inlet arm that serves as the trap. The device with a gold absorber was employed for Se collection. The relevant experimental
conditions (hydrogen flow rate, trapping temperature and volatilization temperature) were optimized by using 75Se radiotracer and AAS experiments. Several arrangements of the gold absorber were tested to maximize the signal/noise ratio. A limit of detection of 7 pg mL-1 was found for the optimum arrangement. Results of analysis of water standard
reference materials (TMRAIN-04 and SRM 1643e) provided good trueness and precision. The substantial advantage of this modular design is that it makes feasible to work with various modifications of the trap surface and with different absorbers placed inside the trap. The design appears to be promising for collection of other hydrides forming elements
such as As.Workplace Institute of Analytical Chemistry Contact Iveta Drobníková, drobnikova@iach.cz, Tel.: 532 290 234 Year of Publishing 2020
Number of the records: 1