Analysis of Phosphate Mixtures by Paper Chromatography

Smith, M. J.

doi:10.1021/ac60150a020

Cited by 25 publications

(10 citation statements)

References 11 publications

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“…For solvents designed to separate hepta-, octa-chromatograms was that recommended by Karl-Kruppa. 28 The chromatographic chambers were standard 6 X 12 in. cylinders and contained 100 ml of solvent.…”

Section: Methodsmentioning

confidence: 99%

Preparation and properties of tetra-, penta-, hexa-, hepta-, and octaphosphates

Griffith¹,

Buxton²

1967

J. Am. Chem. Soc.

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Section: Methodsmentioning

confidence: 99%

Preparation and properties of tetra-, penta-, hexa-, hepta-, and octaphosphates

Griffith¹,

Buxton²

1967

J. Am. Chem. Soc.

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“…A one directional run using an acidisopropyl alcohol solvent (Table II) will resolve a seven-component phosphate mixture (including triand tetrameta) in a few hours, when using W 31DT paper. This may be compared to the lengthy tw7o-directional runs required w7ith chromatographic papers used by previous investigators (4,5,7,11,14). However, the speed and resolution of isopropyl alcohol solvents are not comparable to those of the acetone or dioxane solvents when used with W 31DT paper.…”

Section: Notementioning

confidence: 98%

The Rapid, Trace Analysis of Phosphate Mixtures by a Paper Chromatographic, Densitometric Procedure

Kolloff¹

1961

Anal. Chem.

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A, Beaker, borosilicate glass, 4-liter, 25 cm. interior height and ca. 16-cm. i.D. Asbestos wrap on outside for Insulation 6.Watch glass, 175-mm. diam. C. Chimney, borosilicate glass tube, 2-cm. diam.; open tube is sealed through center of bottom of acid cup Ci. Add cup, 5-cm. diam., 2-cm. height; open at top and filled with 1 :1 HCI D. Screen, fiber glass, remove any plastic coating first using aqua regia or similar treatment f. Desiccator plates (2), ca. 14-cm. diam., 0.5 cm. thick, placed back to back with glass wool mat in between F. Glass wool mat, to prevent spray from entering upper chamber G. Crucibles, Gooch, 4 to 4.5 cm. In height

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“…new method of quantitative estimation of phosphorus, have been described recently (2) and give greater precision and reliabilit).. The cl~i-omatographic separation of the condensed phosphate anions made it possible to determine the constitutions of the soluble glasses, i.e.…”

Section: With Tlze Pernzissiott Of the A M E R I C A T~ C I~e N~i C Amentioning

confidence: 99%

“…The chemical coilstitutioil of each glass was determined by dissolving a few fragments in sodium bicarbonate solution maintainiilg the pH a t approximately 8, separating the various molecular species on a filter paper chromatogram, and ailalyzing by the new technique (2). By adding the other fragments to a weighed, fired crucible containing zinc oxide (approx.…”

Section: Final Preparation Of Glassesmentioning

confidence: 99%

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The Constitution of the Sodium–acid Phosphate Glasses

Westman¹,

Smith²,

Gartaganis³

1959

Can. J. Chem.

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ABS'TIIACTThe preparation of phosphate glasses containing sodiu~il and hydrogen is described. The over-all con~position was calculated from the N a / P ratio of the starting mixture and the 11)-drogen content determined by a zinc oxide ignition. The chemical constit~~tioii was determined paper-chromatographically eiilploying recent improvenients in techniclue.Close resemblance between the molecular weight distributions of the sodium-acid glasses and the strong phosphoric acids is shown by the results, but it is also shown that there is no sharp transition to the molecular weight distribution sho\vn by the sodiunl, potassium, and lithiunl glasses.'The importance of stoichionietry 011 the constitution of glass is discussed, together with the statistical ~nodels from which several theories are deri\,ed to predict the distribution of the polymers in a glass. The theories of Van Wazer and Parlcs, which show the most satisfactory agrectuent with the experinrental results, receive detailed consideration.

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Analysis of Phosphate Mixtures by Paper Chromatography

Cited by 25 publications

References 11 publications

Preparation and properties of tetra-, penta-, hexa-, hepta-, and octaphosphates

Preparation and properties of tetra-, penta-, hexa-, hepta-, and octaphosphates

The Rapid, Trace Analysis of Phosphate Mixtures by a Paper Chromatographic, Densitometric Procedure

The Constitution of the Sodium–acid Phosphate Glasses

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