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determination beryllium fluorometric method

determination beryllium fluorometric method

Rapid Method for Fluorometric Determination of Beryllium

2017-3-17 · A RAPID METHOD FOR FLUOROMETRIC DETERMINATION OF BERYLLIUM BY J. M. RILEY • • II • II • -It Report of lnveatigations 5282 UNITED STATES DEPARTMENT OF THE INTERIOR Fred A. Seaton, Secretary BUREAU OF MINES Marling J. Ankeny, Director Work on manuscript completed April 1956.

Determination of Beryllium in Ores Fluorometric Method ...

2021-3-12 · Determination of Beryllium in Ores Fluorometric Method. Mary H. Fletcher, Charles E. White, and ; ... Some observations on the use of 1,4-dihydroxyanthraquinone as a fluorometric reagent for traces of lithium. ... Analytical Chemistry of Beryllium. VIII. Fluorometric Determination of Micro Quantities of Beryllium with 8-Hydroxyquinaldine.

Determination of Beryllium in Ores Fluorometric Method

A method is described for the accurate and precise determination of boron, beryllium and lithium in coal ash and geological materials by a point-to-plane high-voltage spark optical emission ...

[Determination of beryllium in blood by fluorometric ...

[Determination of beryllium in blood by fluorometric analysis (author's transl)]. [Article in Japanese] Takata T, Hitosugi M, Kadowaki T, Inoue Y, Seki K. PMID: 691845 [PubMed - indexed for MEDLINE] MeSH Terms. Beryllium/blood* Fluorometry/methods* Humans; Substances. Beryllium

Standard Test Method for Determination of Beryllium in

5.1 Exposure to beryllium can cause a potentially fatal disease, and occupational exposure limits for beryllium in air and on surfaces have been established to reduce exposure risks to potentially affected workers (4, 5).Sampling and analytical methods for beryllium are needed in order to meet the challenges relating to exposure assessment and risk reduction.

Fluorometric Determination of Ethylenediamine Using a ...

2017-3-8 · A fluorometric method for the determination of en by using the beryllium(II) complex has been established. Ethylenediamine could be determined in 2×10 −7 –2×10 −5 mol dm −3 within a relative standard deviation of 3%.

Spectrochemical Determination of Beryllium in Mineral ...

2017-3-17 · the determination of beryllium content in rocks, ores, and mineral products. Marks and JonesB have presented a total energy method. CreitzS has described a fusion-pellet-spark procedure. Others employing arc-type excitation have ... Rocks by a

Selective Determination of Beryllium(II) Ion at Picomole ...

A highly sensitive and selective method for the determination of the Be(II) ion has been developed by the use of reversed-phase high-performance liquid chromatography (HPLC) with fluorometric ...

[Determination of beryllium in blood by fluorometric ...

[Determination of beryllium in blood by fluorometric analysis (author's transl)]. [Article in Japanese] Takata T, Hitosugi M, Kadowaki T, Inoue Y, Seki K. PMID: 691845 [PubMed - indexed for MEDLINE] MeSH Terms. Beryllium/blood* Fluorometry/methods* Humans; Substances. Beryllium

Determination of beryllium in drinking water by ...

METHOD. The fluorimetric method for the determination of beryllium is based on the formation of a complex compound between beryllium and morin in alkaline medium in the presence of masking agents followed by the measurement of fluorescence intensity of the formed complex compound using Fluorat-02 analyzer. The result appears on the PC-operated ...

MONITOR FOR THE QUANTITATIVE DETERMINATION OF

@article{osti_4114381, title = {MONITOR FOR THE QUANTITATIVE DETERMINATION OF BERYLLIUM IN THE ATMOSPHERE}, author = {Webb, M S.W. and Webb, R J and Wildy, P C}, abstractNote = {Air was drawn through a triggered intermittent arc and the intensity of the beryllium doublet at 3130 A was monitered, together with the adjacent background; and the ratio of these intensities was recorded on a

Development and validation of a fluorometric method

2012-12-10 · the determination of hesperidin in plasma was 0.02–10.00 μg mL-1 with an LOD 0.005 g mLμ-1 and an LOQ of 0.015 μg mL-1. The good agreement between the two methods indicates the usability of the proposed fluorometric method for the simple, precise and accurate determination of hesperidin in cli-nical and quality control laboratories.

Methods for the detection and determination of nitrite

2017-4-1 · Wang et al. developed a fluorometric CE method for determination of nitrite in human plasma through its derivatization with 2,3-diaminonaphthalene (DAN). Nitrite in human plasma was easily reacted with DAN under acid conditions to yield the highly fluorescent 2,3-naphthotriazole (NAT).

Spectrofluorimetric Determination of Beryllium by Mean ...

2016-6-6 · Trace amounts of beryllium has been determined by spectrofluorimetric method that used morin as fluorimetric reagent. Beryllium gives a highly fluorescent complex with morin. The excitation wavelength of morin and Be-morin complex were 410 and 430. The fluorescence spectra of morin and Be-morin complex were overlaped in excitation wavelength of 430 nm. A method based on mean

Standard Test Method for Determination of Beryllium in

D7296 Practice for Collection of Settled Dust Samples Using Dry Wipe Sampling Methods for Subsequent Determination of Beryllium and Compounds. D7458 Test Method for Determination of Beryllium in Soil, Rock, Sediment, and Fly Ash Using Ammonium Bifluoride Extraction and Fluorescence Detection. D7659 Guide for Strategies for Surface Sampling of ...

Selective Determination of Beryllium(II) Ion at Picomole ...

2019-5-26 · A highly sensitive and selective method for the determination of the Be(II) ion has been developed by the use of reversed-phase high-performance liquid chromatography (HPLC) with fluorometric detection using 2-(2‘-hydroxyphenyl)-10-hydroxybenzo[h]quinoline (HPHBQ) as a precolumn (off-line) chelating reagent. The reagent HPHBQ has been designed to form the kinetically inert Be

A fluorometric assay for trehalose in the ... - Plant Methods

2013-6-20 · Trehalose is a non-reducing disaccharide that is used as an osmolyte, transport sugar, carbon reserve and stress protectant in a wide range of organisms. In plants, trehalose 6-phosphate (Tre6P), the intermediate of trehalose biosynthesis, is thought to be a signal of sucrose status. Trehalose itself may play a role in pathogenic and symbiotic plant-microbe interactions, in responses to ...

Selective determination of beryllium(II) ion at picomole ...

2003-2-1 · Selective determination of beryllium(II) ion at picomole per decimeter cubed levels by kinetic differentiation mode reversed-phase high-performance liquid chromatography with fluorometric detection using 2-(2'-hydroxyphenyl)-10-hydroxybenzo[H]quinoline as precolumn chelating reagent. Matsumiya H(1), Hoshino H.

Determination of beryllium in drinking water by ...

METHOD. The fluorimetric method for the determination of beryllium is based on the formation of a complex compound between beryllium and morin in alkaline medium in the presence of masking agents followed by the measurement of fluorescence intensity of the formed complex compound using Fluorat-02 analyzer. The result appears on the PC-operated ...

Selective Determination of Beryllium(II) Ion at Picomole ...

2019-5-26 · A highly sensitive and selective method for the determination of the Be(II) ion has been developed by the use of reversed-phase high-performance liquid chromatography (HPLC) with fluorometric detection using 2-(2‘-hydroxyphenyl)-10-hydroxybenzo[h]quinoline (HPHBQ) as a precolumn (off-line) chelating reagent. The reagent HPHBQ has been designed to form the kinetically inert Be

ASTM-D7202 | Standard Test Method for Determination of ...

See Test Method D7458 for determination of beryllium in soil samples. 1.4 This test method includes a procedure for extraction (dissolution) of beryllium in weakly acidic medium (pH of 1 % aqueous ammonium bifluoride is 4.8), followed by field analysis of aliquots of the extract solution using a beryllium-specific-optically fluorescent dye.

Selective determination of beryllium(II) ion at picomole ...

2003-2-1 · Selective determination of beryllium(II) ion at picomole per decimeter cubed levels by kinetic differentiation mode reversed-phase high-performance liquid chromatography with fluorometric detection using 2-(2'-hydroxyphenyl)-10-hydroxybenzo[H]quinoline as precolumn chelating reagent. Matsumiya H(1), Hoshino H.

Standard Test Method for Determination of Beryllium in

D7296 Practice for Collection of Settled Dust Samples Using Dry Wipe Sampling Methods for Subsequent Determination of Beryllium and Compounds. D7458 Test Method for Determination of Beryllium in Soil, Rock, Sediment, and Fly Ash Using Ammonium Bifluoride Extraction and Fluorescence Detection. D7659 Guide for Strategies for Surface Sampling of ...

A catalytic cleavage strategy for fluorometric ...

A catalytic cleavage strategy was developed for the fluorometric determination of Hg(II). The method is based on the use of a Mg(II)-dependent split DNAzyme. Fluorophore labeled hairpins were conjugated to gold nanoparticles (AuNPs) upon which fluorescence is quenched. Thymine-Hg(II)-thymine (T-Hg(I

Fluorometric Enzyme Assays - Creative Enzymes

Fluorometric assays are widely used for the determination of the kinetic mechanism of enzyme reactions, and are also used to configure kinetic assays for high throughput screening. To be measured with a fluorescence-based assay the reaction needs to

Methods for the detection and determination of nitrite

2017-4-1 · Wang et al. developed a fluorometric CE method for determination of nitrite in human plasma through its derivatization with 2,3-diaminonaphthalene (DAN). Nitrite in human plasma was easily reacted with DAN under acid conditions to yield the highly fluorescent 2,3-naphthotriazole (NAT).

Development of a fluorescence-based method for the

2019-4-1 · Development of a fluorescence-based method for the rapid determination of Zika virus polymerase activity and the screening of antiviral drugs Yanira Sáez-Álvarez 1

A fluorometric assay for trehalose in the ... - Plant Methods

2013-6-20 · Trehalose is a non-reducing disaccharide that is used as an osmolyte, transport sugar, carbon reserve and stress protectant in a wide range of organisms. In plants, trehalose 6-phosphate (Tre6P), the intermediate of trehalose biosynthesis, is thought to be a signal of sucrose status. Trehalose itself may play a role in pathogenic and symbiotic plant-microbe interactions, in responses to ...