Extractive spectrophotometric method for determination of metribuzin herbicide and application of factorial design in optimization of various factors

Shah, Jasmin; Jan, M. Rasul; Ara, Behisht; Mohammad, Marah

doi:10.1016/j.jhazmat.2008.08.100

Cited by 16 publications

(5 citation statements)

References 10 publications

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“…Metribuzin, an effective postemergence triazine group herbicide with the mode of action of photosynthesis inhibition ( Shah et al, 2009 ; Štěpánová et al, 2012 ), is often applied to restrict the broadleaf and annual grass weeds in wheat, potatoes, and tomatoes ( Majumdar and Singh, 2007 ). The efficiency of herbicides that are used after emergence can be enhanced by adding adjuvants ( Javaid et al, 2012 , 2020 ; Moraes et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Metribuzin Doses on Physiological, Growth, and Yield Characteristics of Wheat and Its Associated Weeds

et al. 2022

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Weeds cause a serious constraint to wheat productivity. Chemical weed control is considered the most effective method to control weeds; however, a suitable dose and combination of herbicide with adjuvants play a vital role in controlling weeds and producing maximum wheat production. A field study was conducted to investigate the effectiveness of various doses of metribuzin alone or in combination with adjuvants [Bio-power (alkyl ether sulfates and sodium salts) and Ad-500 (fatty alcohol ethoxylate)] on the growth and yield of wheat and its associated weeds. Metribuzin at 175, 140, and 105 g a.i ha–1, each in combination with adjuvants (Bio-power or Ad-500) at 400 ml ha–1, were sprayed. A weedy check was also included as a control treatment. The wheat crop was infested with Fumaria indica, Melilotus indica, Anagallis arvensis, and Phalaris minor, and metribuzin with or without adjuvant was sprayed at two- to four-leaf stage of the weeds. The photosynthetic activity, weed population of each weed, and biomass of each weed was significantly affected by all herbicides along with the adjuvant. However, maximum inhibition of tested weeds was observed where metribuzin at 175 g a.i ha–1 + Bio-power at 400 ml ha–1 were sprayed. Metribuzin sprayed at 175 g a.i ha–1 with or without Bio-power recorded a maximum 1,000-grain weight, biological yield, and grain yield. Conclusively, metribuzin sprayed at 175 g a.i ha–1 + Bio-power at 400 at ml ha–1 have the potential to improve wheat yield by inhibiting weed growth, and Bio-power was superior to Ad-500 in improving the efficacy of metribuzin against weeds of wheat crop.

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Section: Introductionmentioning

confidence: 99%

Efficacy of Metribuzin Doses on Physiological, Growth, and Yield Characteristics of Wheat and Its Associated Weeds

et al. 2022

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“…It is highly soluble in water (1.05 g/L) and weak adsorption in low organic sandy soil, sorption coefficient vary from 0.56 in sandy loam to31.7 in a soil containing 60% organic matter [4,5] consequently found to contaminate surface and ground water. According to U.S. Environmental Agency Health Advisory Report Metribuzin level for drinking water is 175 µg L -1 and Metribuzin concentration in ground water were reported in the range of 0.60-6.80 µg L -1 [6][7][8] The presently available method for the determination of the metribuzin residues involve spectrophotometric [15], electrochemical [16], micellarelectrokinetic chromatography [17], gas chromatography (GC) [19,20] and high performance liquid chromatography (HPLC) [21][22][23][24]. Methods based on later techniques find wide favour for its analysis.…”

Section: Introductionmentioning

confidence: 99%

The Gradient RP-HPLC-DAD Method for the Quantitative Determination of Metribuzin Herbicide in Some Food Stuffs Residue

Sharma¹,

Tjprc²

2019

IJEEFUS

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A simple, sensitive and rapid solid-phase extraction (SPE) supported Reverse Phase-High Performance liquid Chromatography-Diode Array Detector (RP-HPLC-DAD) method has been presented for the routine determination of metribuzin in some common food stuffs and water samples. Equivalent to 0.1% phosphoric acid and methanol: water (20:80 v/v) as mobile phase and flow rate was set at 0.8 mL/minute. C-18 PRP, YDAC-218 HPLC column and DAD detector were selected on the basis of physical and structural properties of metribuzin. The LOD and LOQ values have been found to be 1 and 10 µgL-1 respectively. The developed method shows satisfactory spiked recoveries of the metribuzin from some food stuffs viz. soy bean, sugarcane, tomato, potato and water samples ranging from 81.96 to 94.20% with relative standard deviations below 3 %. The minimum consumption of solvent (10 mL ethyl acetate) in SPE for residual workup in 5 minutes, with subsequent 20 minutes RP-HPLC analysis makes the proposed method simple and rapid having promise as an excellent economical alternative for the quantitative determination of metribuzin in food stuffs.

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“…Extractive spectrophotometric techniques are popular for their sensitivity in the quantification of pharmaceutical compounds. Hence, considerable attention has been given to ion-pair extractive spectrophotometric methods for the assay of many drugs [ 16 – 18 ]. The objective of the present study was to develop a simple, less time-taking, and cheap extractive spectrophotometric method for routine analysis of miconazole nitrate in pharmaceutical preparations.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of an Extractive Spectrophotometric Method for Miconazole Nitrate Assay in Pharmaceutical Formulations

Eticha

Kahsay

Hailu

et al. 2018

Journal of Analytical Methods in Chemistry

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A simple extractive spectrophotometric technique has been developed and validated for the determination of miconazole nitrate in pure and pharmaceutical formulations. The method is based on the formation of a chloroform-soluble ion-pair complex between the drug and bromocresol green (BCG) dye in an acidic medium. The complex showed absorption maxima at 422 nm, and the system obeys Beer's law in the concentration range of 1–30 µg/mL with molar absorptivity of 2.285 × 104 L/mol/cm. The composition of the complex was studied by Job's method of continuous variation, and the results revealed that the mole ratio of drug : BCG is 1 : 1. Full factorial design was used to optimize the effect of variable factors, and the method was validated based on the ICH guidelines. The method was applied for the determination of miconazole nitrate in real samples.

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Extractive spectrophotometric method for determination of metribuzin herbicide and application of factorial design in optimization of various factors

Cited by 16 publications

References 10 publications

Efficacy of Metribuzin Doses on Physiological, Growth, and Yield Characteristics of Wheat and Its Associated Weeds

Efficacy of Metribuzin Doses on Physiological, Growth, and Yield Characteristics of Wheat and Its Associated Weeds

The Gradient RP-HPLC-DAD Method for the Quantitative Determination of Metribuzin Herbicide in Some Food Stuffs Residue

Development and Validation of an Extractive Spectrophotometric Method for Miconazole Nitrate Assay in Pharmaceutical Formulations

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