Chromatographic 2,4-Dinitrophenylhydrazone Method for Determination of Allethrin

Green, Nathan; Schechter, M. S.

doi:10.1021/ac60104a016

Cited by 7 publications

(4 citation statements)

References 20 publications

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“…A gravimetric procedure for the determination of the carbonyl group has been applied to allethrin (55). The 2,4-dinitrophenylhydrazone is separated from the other components by chromatography and weighed.…”

Section: Aldehydes and Ketonesmentioning

confidence: 99%

“…After reviewing 55 papers dealing with the determination of serine and threonine, Schlormtiller and Walter (127) conclude that the two most important methods involve oxidation with lead tetraacetate or with periodic acid. Both procedures give accurate results, but the period ate procedure is to be preferred.…”

Section: Amiiso Acidsmentioning

confidence: 99%

“…Glycidic esters react quantitatively with hydrogen iodide to produce iodine. Titration of the iodine with sodium thiosulfate provides a convenient method for the determination of these compounds (55).…”

Section: Oxiranesmentioning

confidence: 99%

See 2 more Smart Citations

Volumetric and Gravimetric Analytical Methods for Organic Compounds

Smith¹,

Wagner²,

Patterson³

1956

Anal. Chem.

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Section: Aldehydes and Ketonesmentioning

confidence: 99%

Section: Amiiso Acidsmentioning

confidence: 99%

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Volumetric and Gravimetric Analytical Methods for Organic Compounds

Smith¹,

Wagner²,

Patterson³

1956

Anal. Chem.

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“…Another type of trough is made of glass tubing (3,4), but this is fragile and requires a rigid support over the entire length.…”

Section: Acknowledgmentmentioning

confidence: 99%

Trough for Use in Descending Paper Chromatography

Thompson¹,

Marion²

1956

Anal. Chem.

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Notes on the 2: 4‐dinitrophenylhydrazine method for pyrethrum assay

Moore¹

1956

J Sci Food Agric

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Experiments are described which have clarified the chemistry of the D.N.P.* method' for iyrethrum and allethrin assay. The fate during the course of analysis of a number of the non-insecticidal contaminants has been determined and the scope and limitations of the method are reviewed in the light of the new findings. IntroductionIn an earlier communication1 the writer put forward a method for the assay of 'pyrethrin' and allethrin concentrates, based upon reaction with 2 : 4-dinitrophenylhydrazine (D.N.P.). The procedure finally adopted contained empirical features ; in particular, the calculation of ' pyrethrins ' values involved important assumptions. Nevertheless, the results of tests on a wide range (though limited number) of standards showed promise.Recently a variant of the new method, involving a different practical procedure, has been proposed2 for allethrin assay and further work in this Laboratory has clarified most of the outstanding points. In the following notes, the details of the three main phases of the assaythe formation, isolation, and estimation of the z : 4-dinitrophenylhydrazones-will be reviewed in the light of this additional information.

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Chromatographic 2,4-Dinitrophenylhydrazone Method for Determination of Allethrin

Cited by 7 publications

References 20 publications

Volumetric and Gravimetric Analytical Methods for Organic Compounds

Volumetric and Gravimetric Analytical Methods for Organic Compounds

Trough for Use in Descending Paper Chromatography

Notes on the 2: 4‐dinitrophenylhydrazine method for pyrethrum assay

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