antimony iii determination
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antimony iii determination

Determination of antimony(III), antimony(V), and ...

Determination of trace antimony(III) with Pyrocatechol Violet in water by graphite-furnace AAS after preconcentration on a membrane filter with a finely pulverized anion-exchange resin.. BUNSEKI KAGAKU 2001, 50 (2) , 143-147.

Determination of antimony(III) and total antimony by ...

Mar 07, 2007  Therefore, an accurate and reliable method for the determination of antimony species is more important than the total antimony measurement. The concentrations of antimony in environmental samples are reported to be very low, ranging from a few ng L −1 in freshwater to 200 ng L

Determination of antimony(III) and total antimony by ...

Mar 07, 2007  The relative standard deviations (R.S.Ds.) were 6.6% for Sb(III) and 7.1% for total Sb (c=0.2 ng mL(-1), n=7), respectively. The enrichment factor was 96. The developed method has been applied successfully to the determination of Sb(III) and total Sb in natural water samples. PMID: 17386678 [Indexed for MEDLINE] MeSH terms. Antimony/analysis*

Spectrophotometric Determination of Antimony (III) By ...

Dec 13, 2006  (1983). Spectrophotometric Determination of Antimony (III) By Solvent Extraction with Mandelic Acid and Malachite Green. Analytical Letters: Vol. 16, No. 11, pp. 827-834.

Determination of antimony(III) in environmental water ...

Sep 12, 2002  Determination of antimony(III) in environmental water samples in microemulsion system by the fluorescence quenching method. Wei Q(1), Yang J, Zhang Y, Chang G, Du B. Author information: (1)School of Chemistry and Environmental Engineering, Jinan University, Jinan 250022, People's Republic of China.

Determination of antimony(III) by titration with chromium ...

Sep 01, 1982  There is no need for a catalyst in the potentiometric or spectrophotometric titration of antimony(III) with chromium(VI). The failure of titrations using indicators is due to slowness of the oxidized indicator-Sb(III) reaction; the indicator reaction can be catalysed by iodine. The spectrophotometric titration yields accurate results, and shows that the Sb(III)-Cr(VI) reaction is rapid.

Determination of Trace Antimony (III) by Adsorption ...

This work presents a sensitive method for the determination of trace antimonybased on the antimony-pyrogallol red (PGR) adsorption at a carbon paste electrode (CPE).The optimal conditions were to use an electrode containing 25% paraffin oil and 75%high purity graphite powder as working electrode, a 0.10 mol/L HCl solution containing3.0×10-5 mol/L PGR as accumulation medium and a 0.20 mol/L ...

Determination of antimony(iii) and total antimony by ...

A procedure for the determination of Sb(iii) and total Sb in commercial samples of injectable drugs based on pentavalent antimony was proposed. The drugs studied in this work are currently used for leishmaniasis treatment in many countries. Determination

A highly selective electrochemical sensor for trace ...

Mar 13, 2020  The study covers the following points: (1) studying the electrochemical behavior of the antimony (III) complex with HTTA reagent in aqueous media; (2) developing an accurate, fast, sensitive, and selective DP–CSV procedure for trace determination and speciation of antimony (III V) in fresh and water (Red Sea and Atlantic Ocean), and finally ...

Spectrophotometric Determination of Antimony (III) By ...

(1983). Spectrophotometric Determination of Antimony (III) By Solvent Extraction with Mandelic Acid and Malachite Green. Analytical Letters: Vol. 16, No. 11, pp. 827-834.

The Detection and Determination of Antimony by Means

A method for the detection and determination of antimony has been developed, based on the extractability of antimony (III) as the iodide into benzene* The benzene extract i® subsequently reacted with an aqueous solution of Khodamine B, the violet complex of antimony- Rhodamin© 8

Analytical Methods for Determining Arsenic, Antimony and ...

the diethyldithiocarbaminate complex with As (III) [7]. Spectrophotometric Methods for Determination of Antimony A frequently used method is the one based on the for-mation of brilliant green after reduction of Sb(V) to Sb (III) by cerium sulphate and hydroxylamine hydrochlo-ride. In this form Sb is determined at the wavelength of 620 nm.

Antimony(III) in drinking water – Straightforward ...

The toxicity of antimony depends on its oxidation state: antimony(III) is more toxic than antimony(V). Due to its carcinogenicity, EU legislation specifies 5 µg/L and the World Health Organization (WHO) sets a maximum concentration of 20 µg/L as the Sb(III) limit value in drinking water. Straightforward determination using anodic stripping voltammetry provides a fast (analysis time under 10 ...

Determination of Antimony(III) and Total Antimony in ...

(2010). Determination of Antimony(III) and Total Antimony in Aqueous Samples by Electrothermal Atomic Absorption Spectrometry After Dispersive Liquid–Liquid Microextraction (DLLME) Analytical Letters: Vol. 43, No. 16, pp. 2563-2571.

Determination of Trace Antimony (III) by Adsorption ...

This work presents a sensitive method for the determination of trace antimonybased on the antimony-pyrogallol red (PGR) adsorption at a carbon paste electrode (CPE).The optimal conditions were to use an electrode containing 25% paraffin oil and 75%high purity graphite powder as working electrode, a 0.10 mol/L HCl solution containing3.0×10-5 mol/L PGR as accumulation medium and a 0.20 mol/L ...

Determination of antimony(iii) and total antimony by ...

A procedure for the determination of Sb(iii) and total Sb in commercial samples of injectable drugs based on pentavalent antimony was proposed. The drugs studied in this work are currently used for leishmaniasis treatment in many countries. Determination

[Direct determination of water-soluble antimony(III) and ...

A simple, rapid and useful method for the determination of water-soluble antimony(III) and antimony(V) in soil was established using hydride generation atomic fluorescence spectrometry. The method was based on the different chemical reaction efficiency between Sb(III) and Sb(V) with KBH4 in

QMETAL INTERFERENCES AND THEIR REMOVAL PRIOR TO THE ...

Low arsenic(III) recoveries occurred when the molar ratios of metals to arsenic(III) were copper greater than 120, iron(III) greater than 70, chromium(VI) greater than 2, cadmium greater than 800, antimony(III) greater than 3, antimony(V) greater than 12, or selenium(IV) greater than 1.

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Digestion procedures for the determination of antimony and ...

A sensitive and selective voltammetric method for determination of antimony(III) using Alizarin Red S (ARS) as complexing agent is described. The method is based on the monitoring the oxidation ...

Draft Report on Carcinogens Monograph on Antimony

NTP determination or policy. This Page Intentionally Left Blank. Peer-Review Draft RoC Monograph on Antimony Trioxide 11/29/17 ... antimony(III) trioxide and also provides scientific and exposure information on elemental antimony and other antimony compounds, because (1) people can be exposed to antimony(III) ...

Polarographic Determination of Dialkyldithiophosphates ...

Dialkyl Dithiophosphato Derivatives of Antimony (III). Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 1999, 29 (4) , ... Flow injection sorbent extraction with dialkyldithiophosphates as chelating agent for the determination of zinc by flame atomic absorption spectrometry. Analytica Chimica Acta 1995, 309 (1-3) , ...

Selective determination of trace arsenic and antimony ...

Traces amounts of arsenic and antimony in water samples were determined by gas chromatography with a photoionization detector after liquidnitrogen cold trapping of their hydrides. The sample solution was treated with sodium hydroborate (NaBH 4 ) under weak‐acid conditions for arsenic(III) and antimony(III) determination, and under strong ...

Determination of Trace Antimony (III) in Water Samples ...

A new sensitive method for antimony (III) determination by graphite furnace atomic absorption spectrometry (GFAAS) has been developed by using N-benzoyl-N-phenylhydroxylamine (BPHA) and 1-butyl-3-methylimidazolium hexafluorophosphate ([C 4 mim][PF 6 ]) single drop microextraction. The single drop microextraction (SDMM) system is more competitive compared with other traditional extraction

Antimony(III) in drinking water – Straightforward ...

The toxicity of antimony depends on its oxidation state: antimony(III) is more toxic than antimony(V). Due to its carcinogenicity, EU legislation specifies 5 µg/L and the World Health Organization (WHO) sets a maximum concentration of 20 µg/L as the Sb(III) limit value in drinking water. Straightforward determination using anodic stripping voltammetry provides a fast (analysis time under 10 ...

Determination of Trace Antimony (III) by Adsorption ...

This work presents a sensitive method for the determination of trace antimonybased on the antimony-pyrogallol red (PGR) adsorption at a carbon paste electrode (CPE).The optimal conditions were to use an electrode containing 25% paraffin oil and 75%high purity graphite powder as working electrode, a 0.10 mol/L HCl solution containing3.0×10-5 mol/L PGR as accumulation medium and a 0.20 mol/L ...

(PDF) Determination of Antimony (III) and (V) in Natural ...

Determination of antimony(III) and (V) in natural water by cathodic stripping voltammetry with in-situ plated bismuth film electrode 143. 7. Matusiewicz H, Krawczyk M (2008) Determination of total.

Determination of Trace Antimony (III) by Adsorption ...

Reagents and solutions. Chemicals were of analytical reagent grade unless otherwise stated. A 1.0×10-3 mol/L antimony (III) stock solution was prepared by dissolving an appropriate amount of antimony oxide in 6 mol/L HCl. Pyrogallol red (PGR, Sigma) solution (1×10-3 mol/L) was prepared by dissolving PGR (0.1001 g) in ethanol (100 mL), then diluting to 250 mL with double distilled water.

Digestion procedures for the determination of antimony and ...

A sensitive and selective voltammetric method for determination of antimony(III) using Alizarin Red S (ARS) as complexing agent is described. The method is based on the monitoring the oxidation ...

Determination of antimony(III) by titration with manganese ...

adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

What is the weighing form in gravimetric determination of ...

The gravimetric analysis of antimony(III) with oxine (8-quinolinol, Hox) was studied. The amount of antimony left in filtrate and washing solutions was corrected with the results of atomic absorption spectrometry. The weighing form, which had not been conclusive before the present study, was determined to be SbO(ox)(Hox)2. The result (purity of antimony(II) oxide: 99.84 +/- 0.05% (m/m)) of

Voltammetric Determination of Antimony in Natural Waters

For the determination of Sb(III) water samples without pretreatment were used. The content of to­ tal antimony was estimated after a preconcentration and a reduction of Sb(V) to Sb(III). After dilution pH of pretreated sample was adjusted to ca. 6 by addi­ tion of NH 3 solution. The synthetic water spiked with

QMETAL INTERFERENCES AND THEIR REMOVAL PRIOR TO THE ...

Low arsenic(III) recoveries occurred when the molar ratios of metals to arsenic(III) were copper greater than 120, iron(III) greater than 70, chromium(VI) greater than 2, cadmium greater than 800, antimony(III) greater than 3, antimony(V) greater than 12, or selenium(IV) greater than 1.

METAL INTERFERENCES AND THEIR REMOVAL PRIOR TO THE ...

antimony(III), antimony(V), cadmium, chromium(III), chromium(IV), cobalt, copper(II), iron(III), iron(II), lead, manganese, nickel, selenium(IV), selenium(VI), and zinc ranging in concentration from 0 to 1,000 milligrams per liter and offers a method for removing interfering metal cations with cation exchange resin. The degree of interference for

METAL INTERFERENCES AND THEIR REMOVAL PRIOR TO THE ...

all metals tested except antimony(III) and antimony(V) which suppressed arsine formation when the antimony(III)/total arsenic molar ratio exceeded 4 or the antimony(V)/total arsenic molar ratio exceeded 2. Arsenic(III) recoveries for samples spiked with aluminum, chromium(III), cobalt, iron(II), lead, manganese, nickel, selenium(VI), and zinc

Revised Draft: Report on Carcinogens Monograph on

Program. It does not represent and should not be construed to represent any final NTP determination or policy. iii Information Antimony compounds Uses, consumption, and production Antimony(III) trioxide and other commercially important antimony compounds Occupational exposure

Selective determination of trace arsenic and antimony ...

Traces amounts of arsenic and antimony in water samples were determined by gas chromatography with a photoionization detector after liquidnitrogen cold trapping of their hydrides. The sample solution was treated with sodium hydroborate (NaBH 4 ) under weak‐acid conditions for arsenic(III) and antimony(III) determination, and under strong ...

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