photometric determination of potassium ion concentra
DETERMINATION OF POTASSIUM, SODIUM AND CAICIUM IN .
DETERMINATION OF POTASSIUM, SODIUM AND CAICIUM IN FETDSPARS SYDNEY ABBEY Geol'ogi'cal, Suraey of Canad,a, Ottawa, Ontario. AssrRAcr A combined flarne photometric method is described for the determination of potassium,
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THE DETERMINATION OF CALCIUM IN BIOLOGICAL FLUIDS .
THE DETERMINATION OF CALCIUM IN BIOLOGICAL FLUIDS BY FLAME PHOTOMETRY BY F. J. N. POWELL Frotm the Pathology Unzit, St. James's Hospital, Leeds (RECEIVED FOR PUBLICATION MARCH 18, 1953) The use of flame photometers has greatly simplified and expedited the estimation of sodium and potassium. Calcium is one of the elements
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A Study on Fading Photometric Determination of Bromate ...
A new photometric method for the determination of microamounts of bromate is proposed based on the oxidation of isatin by bromate in HC1 medium. The optimal conditions were studied. The maximum absorption of isatin lies at 610 nm. Beer's law was obeyed when the bromate concentration is within the range of 340 μg/10 mL, the determined regressive equation was A610=0. 2080ρ+, the ...
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Rapid Flame Photometric Determination of Sodium and ...
The usual flame photometric determination of Na and K consists of attacking the silicate sample with an acid mixture (HF+HeS04), evaporating to dry ness, and dissolving the residue in a suitable acid. One such method is employed in the chemical labora tory of the CRPG (Ref. 4). Braicovich and LandP
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(PDF) Derivatives of carbohydrazide, thiocarbohydrazide ...
PMAT reacts with iron(I1) to form red or green complexes, depending on the pH, and iron can be quantitatively determined with it at p H (2 =590 nm) or p H (2=620 nm). PMAG also forms a red complex that can be used for photometric determination of iron(I1). 11 Mikrochim.
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Ion exchange resin separation and flame photometric ...
Ion exchange resin separation and flame photometric determination of sodium, potassium, magnesium, calcium, and strontium. ... Creating a My CABI account lets you personalise CAB Direct and manage your saved searches and records.
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Microcolumn ion chromatography of inorganic monovalent ...
Six inorganic monovalent cations such as lithium, sodium, ammonium, potassium, ribidium and cesium were separated within 10 min and indirectly detected at 208 nm. The calibration curves were linear for concentrations up to mM for lithium, sodium, ammonium and potassium, while those for other cations were linear up to mM.
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AN 31: Determination of Anions in Acid Rain by Ion ...
Ion chromatography (IC) offers the analyst the unique POtasSIum sulfate advantage of selective and rapid determination of low Sodium fluoride, sodium nitrite, and sodium bromide concentrations of anions in acid rain. The trend toward (optional) decreasing anion .
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Determination of iron in natural and mineral waters by ...
precipitation, electrodeposition, ion exchange and accumulation with biological organisms, have been used for preconcentration of trace,14–17 The aim of the present study was to propose an extraction procedure for the preconcentration of iron ions in water prior to their AAS determination. The experimental conditions for
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A spectrophotometric method for determination of chemical ...
Potassium dichromate method () The principle of measurement was based on direct determination of the concentration change that Cr6+ is reduced intensely to Cr3+ resulting from potassium dichromate oxidation of organic compounds. The method of homemade COD reagents has been introduced. The good calibration curves for COD value ...
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Direct determination of sodium, potassium, magnesium, and ...
ANALYTICA CHIMICA ACTA ELSEVIER Analytica CbimicaActa 289 (1994) 231236 Direct determination of sodium, potassium, magnesium, and calcium ions in human saliva by ion chromatography using a taurineconjugated bile salt micellecoated stationary phase Wenzhi Hu *,a, Hiroki Haraguchi b aNational Institute for Resources and Environment, 163 Omgawa, Tsukuba, lbaraki 305, Japan, ' Department of .
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Standard Test Methods for Chemical Analysis of Caustic ...
It covers the ion selective electrode determination of 1 to 120 μ g/g chloride in caustic soda and caustic potash. This test method may be applied to other concentrations by using equivalent sample weights. This test method covers the photometric determination of iron in caustic soda or caustic potash.
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Flow Injection and Photometric Determination of S(IV) in ...
The photometric pararosaniline (pRA) method for determination of S(IV) has been adapted to flow injection sample processing (FIA). Prominent features of the method include a limit of detection of ppm of dissolved sulfur dioxide and a sampling rate of 20 per hour.
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Determination of Hexavalent Chromium (Cr(VI ...
The determined Cr(VI) concentrations through the ion chromatography and UVVis spectrophotometry are below the maximum USEPA contaminant concentration of ppm. From the analysis, the NWWTP efficiently removes Cr(VI) before discharge into the environment through La Nana Creek.
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Canadian Journal Journal canadien of Chemistry de chimie
generated augments the hydrogen ion concentra tion derived fro111 dissociation of +H3NNH3+; together the two sources of H+ (solvated) induce ... potassium pnitrophenyl sulfate and 4picolinium chloride, as well as aniliniunl chloride, in ... photometric method for determination of pK,.
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Nota COMPLEXOMETRIC TITRATION WITH .
The extracts were prepared with 10 cm3 soil in 50 mL KCl 1 mol L1. extraction solution. Extraction of exchangeable Ca 2+ and Mg 2+. The mixture of 10 cm 3 soil sample with 50 mL of potassium chloride solution (KCl) 1 mol L1 was agitated in a rotating shaker for 15 min at 120 rpm.
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Determination of Cationic Surfactants by a Photometric ...
Determination of Cationic Surfactants by a Photometric Titration Method with Crystal Violet as a Color Indicator. / Masadome, Takashi. ：: Analytical Letters, 巻 37, 番号 3, 2004, p. 499506. 研究成果: Article
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