Fruit Thinner Residues, Residue Determination of Naphthaleneacetic Acid in Olives

Zweig, Gunter; Gutnick, David L.; Gulli, Roberto A.; Archer, T. E.; Hartmann, H. T.

doi:10.1021/jf60131a018

Cited by 16 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zweig et al (201) developed a method for the determination of naphthaleneacetic acid in olives, using gas chromatography as part of the cleanup procedure. The olives were blended with chloroform and hydrochloric acid and the extract was passed through alumina and silica gel columns.…”

Section: Miscellaneous Pesticidesmentioning

confidence: 99%

“…Greater importance has been assigned to efficient extraction of the pesticide residue from the sample. The use of mixtures of solvent's such as hexane and isopropanol to achieve a single continuous phase with the aqueous medium of food products has been studied (14,201, 1 4 2 , 147,176,192). Some investigators dehydrat'ed the tissues by using anhydrous sodium sulfate, which improved the extraction of the residue with an organic solvent ( I O , 50, /4f, 185).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Pesticide Residues

Cook¹,

Williams²

1965

Anal. Chem.

View full text Add to dashboard Cite

Section: Miscellaneous Pesticidesmentioning

confidence: 99%

mentioning

confidence: 99%

Pesticide Residues

Cook¹,

Williams²

1965

Anal. Chem.

View full text Add to dashboard Cite

“…Therefore, to control its quality, the development of various techniques for its determination is very important. To date, various techniques have been used to determine NAA, including gas chromatography (GC), 1 high-performance liquid chromatography (HPLC), 2 spectrofluorimetry, 3,4 phosphorimetry, 5 room temperature phosphorescence (RTP), 6 capillary micelle electrokinetic chromatography (CMEK), 7,8 and the electrochemical methods. 9,10 Among the electrochemical ones mentioned above, they mainly discuss the electrochemical behaviors and the determinations of NAA at carbon nanotubes film modified electrode and at acetylene black modified glassy carbon electrode.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Behaviors and Electrochemical Determination of 1-naphthaleneacetic Acid at an Ionic Liquid Modified Carbon Paste Electrode

Duan¹,

Zhang²,

Zuo-ning³

2012

Croat. Chem. Acta

View full text Add to dashboard Cite

Abstract. Electrochemical behaviors of 1-naphthaleneacetic acid (NAA) at an ionic liquid N-butylpyridinium hexafluorophosphate (BPPF 6 /CPE) modified carbon paste electrode was investigated by cyclic voltammetry (CV) and further used for NAA sample determination. The experimental results showed that NAA at both the bared and the modified electrode showed an irreversible oxidation process, but at the modified electrode it exhibited an enhanced electrochemical response towards its electrochemical oxidation. BPPF 6 /CPE was characterized by electrochemical impedance spectroscopy (EIS). At the same time, the electrochemical kinetic parameters were determined at both electrodes. The oxidation peak currents increased linearly with NAA concentration range from 2.0 × 10 -5 to 4.0 × 10 -4 mol dm -3 with the detection limit (S/N = 3) of 1.690 × 10 -7 mol dm -3 under the optimized experiment conditions. The proposed method was successfully applied for NAA content determination in both commercial formulations and the soil samples. (doi: 10.5562/cca1901)

show abstract

“…For NAA, however, a previously reported uv absorption and colorimetric method could detect residues as low as 0.2-0.1 ppm in apples (Bache et al, 1962). Similar procedures were developed for olives (Zweig et al, 1964) and for pineapple (Young et al, 1963) with a sensitivity of 0.03 ppm.…”

mentioning

confidence: 93%