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ISO

71.060.50. Sodium carbonate for industrial use — Determination of total soluble alkalinity — Titrimetric method. Sodium carbonate for industrial use — Determination of matter insoluble in water at 50 degrees C. Cryolite, natural and artificial — Determination of silica content — Reduced molybdosilicate spectrophotometric method.

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Releasing

Study of the interferences of silica and sulfate in the flame-photometric determination of calcium in thermal waters has led to the development of a method requiring no prior chemical separations. The interference effects of silica, sulfate, potassium, sodium, aluminum, and phosphate are overcome by an addition technique coupled with the use of magnesium as a releasing agent.

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Standard Test Method for Determination of Sulfur

Standard Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Flame Photometric Detection1 This standard is issued under the fixed designation D 6228; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last

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Table 4

Determination of Potassium, Sodium, and Total Alkalies in Portland Cement, Fly Ash, Admixtures, and Water of Concrete by a Simple Flow Injection Flame Photometric System Table 4 Analytical features of the developed FI-FES method versus some reported methods.

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Magnesium Measurement in Routine Clinical Practice

potassium and phosphate emissions.P Flame emission photometry was initially used for and a method for the determination of magnesium using this ap Photometric assays Photometric methods are currently the most commonly used methods in routine clinical

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Test Method: Method 15 Determination of Hydrogen Sulfide

Method 15 - Determination of Hydrogen Sulfide, Carbonyl Sulfide, and Carbon Disulfide Emissions from Stationary Sources Introduction The method described below uses the principle of gas chromatographic separation and flame photometric detection (FPO). Since there

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X

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract-An X-ray spectrochemical method is compared with the flame photometer determination of potassium in a series of sixty-five soil clay fractions. Two methods of preparing the clay samples for the X-ray determination were used. In one case a 20 mg sample of clay in suspension was dried onto a plastic

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YS/T 509.2

Flame atomic absorption spectrometric method; - Part 9: Determination of fluorine content - lon selective electrode method; - Part 10: Determination of manganous oxide content-Persulfate oxidation photometric method; - Part 11: Determination of loss on ignition - Gravimetric method. This Part is Part 2. This Part replaces YS/T 509.2-2006

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[PDF] SIMULTANEOUS DETERMINATION OF SODIUM AND POTASSIUM

1. A method of flame photometry is described, by which the amount of sodium and potassium in biological fluids can be determined simultaneously, using samples of the order of 10 -3 cu.mm. 2. When the method is tested with quantities near the lower limits of detection (of the order 4 x 10 -8 mg. sodium, 6 x 10 -8 mg. potassium) the reproducibility, measured as standard deviation, is 7 x 10 -9

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A Spectrophotometric Method for the Determination of

sensitive spectrophotometric methods for determine nitrate utilize extractable ion associates of the nitrate ion with basic dyes, like crystal violet [28] and nile blue [29]. In this work, a simple and rapid method has been proposed for the determination of nitrite using methylanthranilate as a coupling agent.

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Talanta

Simultaneous determination of lithium, sodium and potassium in blood serum by flame photometric flow-injection analysis George Narh Doku, Victor P.Y. Gadzekpo* Department oJ Chemistry, lhiurrsit)- of Cape Coast, Cape Coast, Ghana Received 13 February 1995; revised 30 October 1995; accepted 30 October 1995 Abstract

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DIRECT DETERMINATION OF CALCIUM, SODIUM AND

In order to investigate the possibility of using the direct method for the determination of calcium, sodium and potassium in the fermented milk products by flame photometry two procedures were used for the sample preparation. Direct method: After the homogenization by mixing, 2.5 g

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Validation of a flame photometric method for serum lithium

Dec 27, 2017Flame photometry is a reliable quick and cost-effective method of serum lithium estimation. Objective We aimed to validate a flame photometry method for serum lithium estimation to compare the results with a different model flame photometer and an ion-selective electrode. Method Sherwood 410 flame photometer was used for the analysis.

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Flame photometric determination of sodium and potassium in

Details are given of the construction of a suitable apparatus and procedures for estimating Na and K in saliva, serum and urine are described. Interference from other ions is considered, and the effects of using acetylene, propane and coal gas flames.-H. G. Bray.

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Validation of a flame photometric method for serum lithium

We aimed to validate a flame photometry method for serum lithium estimation to compare the results with a different model flame photometer and an ion-Method Sherwood 410 flame photometer was used for the analysis. Serum samples were diluted 1:2 using a lithium blank solution containing sodium and potassium.

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Sodium and potassium contents

5.4 Flame photometer (or a flame emission spectro-meter) equipped for the determination of sodium at 589,0 nm and potassium at 766,5 nm. Propane should be used as fuel for the flame. Note 2 – An acetylene flame is not recommended for flame photometry or flame emission spectroscopy since it has been found to give different results.

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Regulation No. R. 34 of 2000

Mercurimetric method. Calcium and Magnesium contents.. ISO 2482-1973 Determination of calcium and magnesium contents. EDTA complexometric methods. Potassium content .. ESPA/CN-E/103-1994 Determination of potassium content by sodium tetraphenylborate volumetric method or alternatively according to the ESPA/CN-E/104-1994 Flame atomic absorption

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AOAC Official Method 983.02 Potassium in Fertilizers Flame

:AOAC Official Method 983.02 Potassium in Fertilizers Flame Photometric Method (Manual or Automated) First Action 1983 Final Action 1985 :AOAC Official Method 983.02 Potassium in Fertilizers Flame Photometric Method (Manual or Automated) First Action 1983 Final Action 1985;

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Determination of Magnesium, Calcium and Potassium in

Nov 01, 2010Determination of Magnesium, Calcium and Potassium in Brines by Flame AAS using the SIPS-10 Accessory for Automated Calibration and On-Line Sample Dilution Author Jonathan H. Moffett Application Note Atomic Absorption Introduction Brines are solutions of sodium chloride containing from 2% to 30% dissolved salt. They are used extensively in industry.

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Flame Photometric Determination of

tative method for the determination of lithium ions in water. This method, the flame photometric technique, re-quires the addition of a sodium sulfate-sodium carbonate solution to the sam-ple to precipitate alkaline-earth inter-ferences prior to analysis. The mini-mum lithium concentration detected is 0.1 mg/1. A study of published flame photo-

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Flame Emission Spectroscopy

Its most important uses have been in the determination of sodium, potassium, lithium and calcium, particularly in biological fluids and tissues. For reasons of convenience, speed, and relative freedom from interferences, flame emission spectroscopy has become the method of choice for these otherwise difficult to determine elements.

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Chrominfo: What are the Applications of Flame Photometry

Apr 01, 2019The environmental applications of flame photometry include determination of alkali and alkaline earth elements by conducting the flame test, analysis of water, monitoring of soil qualities, control of potassium, sodium, and magnesium of wastewater, control of fertilizer residues in the soil, etc.

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