Determination of the herbicide metribuzin and its major conversion products in soil by micellar electrokinetic chromatography
نویسندگان
چکیده
منابع مشابه
Determination of the herbicide metribuzin and its major conversion products in soil by micellar electrokinetic chromatography.
In this paper, a multiresidue method for the analysis in soils of metribuzin (M) and its major conversion products, deaminometribuzin (DA), diketometribuzin (DK) and deaminodiketometribuzin (DADK) is developed. Considering the neutral and charged nature of the molecules, micellar electrokinetic chromatography (MEKC) is a very efficient method for the separation of these compounds, providing hig...
متن کاملSeparation of preservatives in cosmetic products by micellar electrokinetic chromatography.
This paper describes the methodological optimization and validation of a simple micellar electrokinetic chromatography for the rapid simultaneous separation of 2-methyl-4-isothiazolin-3-one, methylparaben, ethylparaben, propylparaben, and butylparaben. By using a 30 mM phosphate buffer (pH 7.2) containing 30 mM sodium dodecyl sulfate (SDS), an applied voltage of 10 kV and a separation temperatu...
متن کاملDetermination of gibberellic acid in fermentation broth and commercial products by micellar electrokinetic chromatography.
Micellar electrokinetic chromatography (MEKC) was developed as a method for quantitative determination of gibberellic acid (GA3) in fermentation broth and commercial products, using 25 mM disodium tetraborate as a buffer at pH 9.2 and 100 mM sodium dodecyl sulfate as a micellar phase. The baseline resolution (Rs of GA3 from other compounds in fermentation broth was achieved with Rs > 2.5. The a...
متن کاملDetermination of thyreostatics in animal feed by micellar electrokinetic chromatography.
The determination of the thyreostatics 2-thiouracil, its derivatives (4-methyl-2-thiouracil, 4-propyl-2-thiouracil and 4-phenyl-2-thiouracil) and methimazole in manufactured dried animal feed by micellar electrokinetic chromatography (MEKC) is described. A 99 +/- 5% extraction yield at the 20 micrograms g-1 level (n = 8) was achieved by shaking the milled fodder with methanol-1 M NaOH (80 + 20)...
متن کاملSimultaneous determination of atorvastatin and ezetimibe from combined pharmaceutical products by micellar electrokinetic capillary chromatography
*Coresspondence: B. Székely-Szentmiklósi. Department of Pharmaceutical Chemistry. Faculty of Pharmacy. University of Medicine and Pharmacy of Tîrgu Mureş. Gh. Marinescu 38, 540139 Tîrgu Mureş, Romania. E-mail: [email protected], [email protected] Simultaneous determination of atorvastatin and ezetimibe from combined pharmaceutical products by micellar electrokinetic capillary chromato...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Chromatography A
سال: 2006
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2005.10.052