Sprout Inhibitor Residues, Residue Determination of Naphthaleneacetic Acid and Its Methyl Ester in Potatoes by a Combination of Gas Chromatography and Ultraviolet Spectrophotometry

Zweig, Gunter; Archer, T. E.; Raz, Daniel

doi:10.1021/jf60121a010

Cited by 16 publications

(13 citation statements)

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“…The conversion of aldrin (1,2,3,4,10, 10-hexachloro-l,4,,4a,5,8,8a-hexahydro-1,4-endo -exo-5,8 -dimethanonaph thalene) to dieldrin in mammals was first observed by Barnes as reported by Winter-ingham and Barnes (76), and the conversion was later confirmed by others (7). Using houseflies, Brooks (5) not only demonstrated the metabolism of aldrin to dieldrin and isodrin to endrin, but also obtained data that indicated further degradation of endrin to its known keto rearrangement product (3).…”

Section: Insecticide Metabolismmentioning

confidence: 68%

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Fruit Drop Control Residues, Determination of Naphthaleneacetic Acid in Apples

Bache¹,

Edgerton²,

Lisk³

1962

J. Agric. Food Chem.

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For the determination of naphthaleneacetic acid (NAA) in apples, the compound is extracted with dilute alkali and separated from interfering materials by partition chromatography on a silicic acid column. Both ultraviolet absorption at 283 mp and a colorimetric procedure are used for measuring residues. The ultraviolet method is sensitivite to 0.1 p.p.m., and recoveries averaged 93.5%. The colorimetric procedure is sensitive to 0.2 p.p.m., and recoveries averaged 79.1 %. Residues of the chemical were less than 0.1 p.p.m.

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Section: Insecticide Metabolismmentioning

confidence: 68%

“…Schwartz and Kuramoto (6) determined NAA as one of the hydrolysis products of naphazoline by ultraviolet absorption at 283 µ with chloroform as a solvent. Zweig (7) determined NAA in potatoes by a method involving gas chromatography and quantitative measurement by ultraviolet absorption.…”

mentioning

confidence: 99%

Fruit Drop Control Residues, Determination of Naphthaleneacetic Acid in Apples

Bache¹,

Edgerton²,

Lisk³

1962

J. Agric. Food Chem.

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“…The methyl ester of NAA is used to prevent the sprouting of potatoes after harvest (8). During the storage of potatoes, the ester is hydrolyzed to the free acid (15) to which humans might be exposed when consuming treated fruits and vegetables.…”

mentioning

confidence: 99%

Metabolism of Naphthaleneacetic Acid-1-C¹⁴ in Rats

Lethco¹,

Brouwer²

1966

J. Agric. Food Chem.

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“…The use of naphthaleneacetic acid (NAA) as a fruit thinner for olives (5, 6) has prompted the development of a sensitive analytical method for residue determinations of this plant growth hormone. A recently developed method for NAA employs the nitration of the naphthalene ring and the subsequent development of a characteristic color (7). An adaptation of this method for the determination of NAA on olives proved unsuccessful due to high blanks, and a rigorous cleanup technique had to be devised, based on column and gas-liquid chromatography followed by nitration and spectrophotometry.…”

mentioning

confidence: 99%

“…An adaptation of this method for the determination of NAA on olives proved unsuccessful due to high blanks, and a rigorous cleanup technique had to be devised, based on column and gas-liquid chromatography followed by nitration and spectrophotometry. The cleanup step involving gas liquid chromatography was an adaptation of the residue method for methyl ester naphthaleneacetic acid (MENA) in potatoes (7).…”

mentioning

confidence: 99%