arsenic antimony discharge

Simultaneous determination of arsenic and antimony by ...

2010-12-1 · Simultaneous determination of arsenic and antimony by hydride generation atomic fluorescence spectrometry with dielectric barrier discharge atomizer. ... atmospheric pressure dielectric barrier discharge and its application to arsenic speciation with atomic absorption spectrometry. Anal. Chem., 78 (2006), pp. 865-872.

Arsenic and antimony determination by on-line flow

Arsenic and antimony determination by on-line flow hydride generation–glow discharge–optical emission detection January 2001 Spectrochimica Acta Part B Atomic Spectroscopy 56(1):113-122

Highly Sensitive Determination of Arsenic and Antimony ...

2019-7-16 · A novel interrupted gas flow (IF) technique has been proposed for highly sensitive determination of ultratrace levels of arsenic and antimony in water samples by atmospheric pressure glow discharge (APGD) excitation source coupled with HCl-KBH 4 hydride generation (HG).

Arsenic and antimony determination by on-line flow

Hollow cathode (HC) and conventional flat cathode (FC) glow discharge (GD) optical emission spectrometry (OES) were used as detectors for the determination of arsenic and antimony by on-line hydride generation (HG) in a flow system. Both radiofrequency (rf) and direct current (dc) sources were investigated to produce the discharge. The design of the HC and FC and also the parameters

METHOD 7062 ANTIMONY AND ARSENIC (ATOMIC

2021-6-25 · 4.6 Antimony and arsenic hollow cathode lamps or antimony and arsenic electrodeless discharge lamps and power supply. Super-charged hollow-cathode lamps or EDL lamps are recommended for maximum sensitivity. 4.7 Strip-chart recorder (optional): Connect to output of spectrophotometer. 5.0 REAGENTS

Arsenic and antimony in water and wastewater: Overview

2015-3-15 · Arsenic and antimony are both metalloids, having properties of metals and nonmetals, and belong to Group VA of the periodic table (third and fourth elements, respectively). These trace elements with similar chemistry and toxicity are naturally occurring and commonly present together (An and Kim, 2009, Lehr et al., 2007).

Chemometric and environmental assessment of arsenic ...

2015-6-2 · The oxidized forms of arsenic, antimony, and chromium prevailed in the bottom sediments in the heated water discharge zone. Contrary to the Pławniowice Reservoir (Jabłońska-Czapla et al. 2014 ), the location from which the samples were collected in the Rybnik Reservoir largely affected the transformations and contents of the arsenic ...

Arsenic and antimony determination by on-line flow

2001-1-15 · Under the same arsenic optimized experimental conditions, the system was evaluated to determine antimony at 259.7, 252.7 and 231.1 nm, 252.7 nm being the emission line which produced the best detection limit (0.7 μg l −1). The rf-HC–GD–OES system was applied successfully to the determination of arsenic in freeze-dried urine in the ...

The preparation of electrodeless discharge lamps of ...

Electrodeless discharge lamps were prepared for arsenic, antimony, germanium, and selenium using the covalent gaseous hydride of each of the elements as the source of the analyte. The method for lamp preparation was optimized and lamp characteristics were thoroughly investigated. Lamps that were prepared using the hydride technique were shown to be intense, stable, reproducible, and reliable.

On the coupling of hydride generation with atmospheric ...

On the coupling of hydride generation with atmospheric pressure glow discharge in contact with the flowing liquid cathode for the determination of arsenic, antimony and selenium with optical emission spectrometry. Author links open overlay panel Krzysztof Greda

Simultaneous determination of arsenic, antimony, and ...

2020-12-1 · Arsenic and antimony determination by on-line flow hydride generation–glow discharge–optical emission detection. Spectrochimica Acta Part

Use of a hollow-cathode discharge for the quantitative ...

Use of a hollow-cathode discharge for the quantitative spectral determination of superstoichiometric arsenic in gallium arsenide and of antimony in indium antimonide. N. K. Rudnevskii, D. E. Maksimov & L. P. Burakova Journal of Applied Spectroscopy volume 5, pages 286–287 (1966)Cite this article

METHOD 7062 ANTIMONY AND ARSENIC (ATOMIC

2021-6-25 · 4.6 Antimony and arsenic hollow cathode lamps or antimony and arsenic electrodeless discharge lamps and power supply. Super-charged hollow-cathode lamps or EDL lamps are recommended for maximum sensitivity. 4.7 Strip-chart recorder (optional): Connect to output of spectrophotometer. 5.0 REAGENTS

Chemometric and environmental assessment of arsenic ...

2015-6-2 · The oxidized forms of arsenic, antimony, and chromium prevailed in the bottom sediments in the heated water discharge zone. Contrary to the Pławniowice Reservoir (Jabłońska-Czapla et al. 2014 ), the location from which the samples were collected in the Rybnik Reservoir largely affected the transformations and contents of the arsenic ...

On the coupling of hydride generation with atmospheric ...

2015-5-15 · On the coupling of hydride generation with atmospheric pressure glow discharge in contact with the flowing liquid cathode for the determination of arsenic, antimony and selenium with optical emission spectrometry. Author links open overlay panel Krzysztof Greda Piotr Jamroz Dominika Jedryczko Pawel Pohl.

(PDF) Determination of Arsenic and Antimony by

Gong et al. (2001) studied the performance of a microwave plasma torch discharge AES system directly coupled with Hydride Generation for the determination of arsenic and antimony. Rasul et al ...

Arsenic and antimony co-contamination influences on soil ...

2021-8-1 · Arsenic and antimony co-contamination influences on soil microbial community composition and functions: Relevance to arsenic resistance and carbon, nitrogen, and sulfur cycling Author links open overlay panel Yongbin Li a Miaomiao Zhang a Rui Xu a Hanzhi Lin a Xiaoxu Sun a Fuqing Xu a Pin Gao a b Tianle Kong a Enzong Xiao c Nie Yang a Weimin Sun a

Issue Paper on the Human Health Effects of Metals

2021-6-25 · Antimony Arsenic Barium Beryllium Cadmium Lead Mercury Silver Strontium Thallium The primary premise for this classification is that assessment of health risks for nutritionally essential metals requires its own approach or process: restrictive standards must

Seasonal arsenic accumulation in stream sediments at a ...

2014-1-21 · Seasonal arsenic accumulation in stream sediments at a groundwater discharge zone. MacKay AA(1), Gan P, Yu R, Smets BF. Author information: (1)Environmental Engineering Program, University of Connecticut , 261 Glenbrook Road, Storrs, Connecticut 06269-3037, United States.

Highly Sensitive Determination of Arsenic and Antimony ...

2018-12-28 · A novel interrupted gas flow (IF) technique has been proposed for highly sensitive determination of ultratrace levels of arsenic and antimony in water samples by atmospheric pressure glow discharge (APGD) excitation source coupled with HCl-KBH 4

Geochemistries of arsenic, antimony, mercury, and related ...

2021-3-11 · Arsenic, antimony, and bismuth as indicators of the genesis of ore material in Early Precambrian ferrous quartzite formations. Geochemistry International 2012, 50 ... Arsenic speciation and distribution in the Carnon estuary following the acute discharge of contaminated water from a disused mine. Marine Pollution Bulletin 1994, 28 (1) , ...

Detecting antimony and arsenic concentrations in the

2015-6-29 · Samples for Arsenic and Antimony were collected from surface water samples at Sites 1 to 4 on six (6) occasions and Site 5 on four (4) occasions between 2 May 2014 and 13 February 2015. Sample collection was targeted at different discharge levels to identify if mobilization and transport of contaminants were linked to rainfall and discharge events.

On the Coupling of Hydride Generation with Atmospheric ...

On the Coupling of Hydride Generation with Atmospheric Pressure Glow Discharge in Contact with the Flowing Liquid Cathode for the Determination of Arsenic, Antimony and Selenium with Optical ...

Arsenic, Antimony, Chromium, and Thallium Speciation in ...

2014-12-13 · 5. Application of Chromium, Arsenic, Antimony, and Thallium Speciation Analyses in Water Samples. Generally, it is known that the contents of chromium, arsenic, antimony, and thallium are very low in the uncontaminated samples. It is necessary to use very sensitive methods, such as ICP-MS, to determine such low analyte contents . Over the last ...

Ambient-Temperature Trap/Release of Arsenic by

2019-5-26 · A novel dielectric barrier discharge reactor (DBDR) was utilized to trap/release arsenic coupled to hydride generation atomic fluorescence spectrometry (HG-AFS). On the DBD principle, the precise and accurate control of trap/release procedures was fulfilled at ambient temperature, and an analytical method was established for ultratrace arsenic in real samples. Moreover, the effects of

(PDF) Seasonal Temperature Oscillations Drive Contrasting ...

2020-10-6 · Arsenic (As) and antimony (Sb) speciation and mobility in river systems can be influenced by the redox conditions of benthic and hyporheic zone sediments. ... Georges Junction (river discharge ...

Mobilization of Antimony and Arsenic in Soil and Sediment ...

2007-5-4 · This study aims to evaluate the performance of different leaching schemes with respect to the mobilization of antimony and arsenic from polluted samples collected at different sites in Mansfeld District, Germany. Besides the elution by water the leaching by artificial acidic rain and by two different schemes of sequential extraction were employed for estimation of the mobilization of antimony ...

Arsenic Removal Technologies A Review - Water Online

2015-3-11 · Arsenic Removal Technologies: A Review. By Mark Reinsel, Apex Engineering. Arsenic is a common element in the earth’s crust, natural groundwater, and even the human body. It is an odorless and tasteless semi-metal (metalloid) that is naturally present in aquifers throughout the U.S. and the world. Arsenic is typically found as an oxyanion in ...

电晕放电_百度百科

2021-1-27 · 电晕放电(corona discharge)是指气体介质在不均匀电场中的局部自持放电,是最常见的一种气体放电形式。在曲率半径很小的尖端电极附近,由于局部电场强度超过气体的电离场强,使气体发生电离和激励 ,因而出现电晕放电。发生电晕时在电极

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