STUDIES ON CONTINUOUS ADSORPTION OF ACETIC
      ACID FROM AQUEOUS SOLUTION USING
      RICE HUSK ADSORBENT

Polyvinyl alcohol preservative (PVA) is used routinely in the laboratory for collection of specimens for examination for ova and parasites.1-4 PVA, presently used at Harbor-UCLA Medical Center, contains: 4.5% mercuric chloride, 5% polyvinyl alcohol, 30% denatured alcohol, 4.5% acetic acid, and 1.5% glycerin in an aqueous solution. The kit, as shown in the Figure, contains three bottles with 10-ml aliquots of PVA, wooden sticks for mixing the specimen, and written instructions for collection of the specimens. The bottles are clearly labeled as poison in English and Spanish, and specific verbal as well as written instructions are given to patients and their families when the ova and parasite kits are dispensed.

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Experimental and computational studies on the removal of crystal violet dye from aqueous solution using juglans regia leaves treated with acetic acid and L-arginine

International Journal of Environmental & Analytical Chemistry ◽

10.1080/03067319.2021.1982927 ◽

2021 ◽

pp. 1-21

Author(s):

Shahid Shafi Shah ◽

Dinesh Kumar ◽

Taniya Sharma ◽

Kamal K. Kapoor ◽

Rajinder K. Bamezai

Keyword(s):

Aqueous Solution ◽

Acetic Acid ◽

Crystal Violet ◽

Juglans Regia ◽

Computational Studies ◽

Crystal Violet Dye

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Experimental design and response surface modeling for optimization of fluoroquinolone removal from aqueous solution by NaOH-modified rice husk

Desalination and Water Treatment ◽

10.1080/19443994.2015.1080188 ◽

2015 ◽

Vol 57 (35) ◽

pp. 16456-16465 ◽

Cited By ~ 34

Author(s):

Seyed Davoud Ashrafi ◽

Hossein Kamani ◽

Jalil Jaafari ◽

Amir Hossein Mahvi

Keyword(s):

Aqueous Solution ◽

Experimental Design ◽

Response Surface ◽

Rice Husk ◽

Surface Modeling ◽

Response Surface Modeling

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Antioxidant activity of Induna apple pomace extract

Acta periodica technologica ◽

10.2298/apt0536239s ◽

2005 ◽

pp. 239-246 ◽

Cited By ~ 1

Author(s):

Sladjana Savatovic ◽

Sonja Djilas ◽

Vesna Tumbas ◽

Jasna Canadanovic-Brunet ◽

Gordana Cetkovic

Keyword(s):

Aqueous Solution ◽

Antioxidant Activity ◽

Acetic Acid ◽

Electron Spin Resonance ◽

Hydroxyl Radicals ◽

Electron Spin ◽

Esr Spectroscopy ◽

Methanol Extract ◽

Apple Pomace ◽

Spin Resonance

Different concentrations ofmethanol aqueous solution with or without 0.5% acetic acid and 80% acetone were used to achieve the highest yield of extraction of phenolics from Induna apple pomace. The highest content of phenolics (6.38 mg/g) was detected in the 80% methanol extract. The influence of 80% methanol extract of Induna apple pomace on stable l,l-diphenyl-2-picrylhydrazyl (DPPH) and reactive hydroxyl radicals has been investigated by electron spin resonance (ESR) spectroscopy. Based on the obtained results it can be concluded that the investigated extract is more effective in the DPPH test than on the DMPO-OH scavenging. In both cases antioxidant activity increased with increasing concentration of the investigated extract. The high contents ofphenolics (6.38 mg/g), flavonoids (1.01 mg/g) and flavan-3-ols (0.70 mg/g) in 80% methanol extract indicated that these compounds contributed to the antioxidant activity of Induna apple pomace.

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