The solvent extraction of gallium from a concentrated Jajarm Bayer process liquor containing 164.90 g/l of Na2O, 86.70 g/l of Al2O3 and 106.02 ppm of gallium was investigated using 10 vol.% Kelex100, a 7-alkyl substituted-8 hydroxyquinoline as an extractant, 10 vol.% etanol as a modifier and kerosene as a diluent. At (Vo :Va = 1.0:1.0) ...

Formic acid occurs in a variety of plants and fruits, mammalian tissues, and insect venoms. It is used industrially in preparing a variety of drugs, dyes, and chemicals; as a decalcifier; and in leather tanning. Formic acid also is an environmental contaminant of air and water and has been identified as the toxic intermediate (formate) in methanol poisoning. Two- and 13-week toxicity studies of...

Abstract Female and male plants of difficult-to-root species Leucadendron elimense subsp. were investigated for rooting potential with three hormones: indole-3-acetic acid (IAA), 1-naphthaleneacetic (NAA), indole-3-butyric (IBA) at different concentrations (2000 ppm, 4000 6000 ppm). The experiment was made under essential misting, bottom heat, a naturally ventilated greenhouse. After 18 weeks t...

Mango (Mangifera indica L.) is a fruit plant that has long been known and become commodity high economic value trade between countries. Vegetative propagation technique an alternative to reproduce this type of plant. This study aims to: 1) Determine the concentration IBA (Indole Butyric Acid) which affects growth mango shoot cuttings L.). 2) Knowing planting media affect 3) To determine interac...

BACKGROUND Some fluoridated toothpastes, available commercially, are described to have a protective effect against dental erosion. OBJECTIVES To evaluate the influence of the selected marketed toothpastes on the human enamel exposed to acid beverages. MATERIAL AND METHODS Enamel specimens from extracted human teeth were prepared (n = 40). Specimens were randomly divided into 10 experimental...

This paper investigated the limits of current approach for determination fatty acids profile milk fats from proton nuclear magnetic resonance data based on hypothesis that signal at 0.96 ppm, currently assigned in literature as a marker “short chain acids,” is generated only by butyric moiety (not all short-chain acids, which also include C6:0—caproic acid). The was tested and experimentally co...

We report high resolution solution (19)F NMR spectra of fluorine-labeled rhodopsin mutants in detergent micelles. Single cysteine substitution mutants in the cytoplasmic face of rhodopsin were labeled by attachment of the trifluoroethylthio (TET), CF(3)-CH(2)-S, group through a disulfide linkage. TET-labeled cysteine mutants at amino acid positions 67, 140, 245, 248, 311, and 316 in rhodopsin w...

Sundarbans biosphere reserve is an ecologically important area of West Bengal, which supports a wide variety of estuarine species including Scylla serrata estuarine mudcrab of economic value. In this present study, activity of phosphatases (acid and alkaline) of hemocytes was estimated under the sublethal exposure of arsenic in controlled static water environment for 1, 2, 3, 4, 7 and 15 days o...

Effects of doses of gibberellic acid (GA3) were studied on the growth and performance of strawberry cultivar ‘Chandler’. GA3 was applied as foliar spray at three leaf stages @ 50, 75, 100 and 150 ppm. The applied GA3 @ 150 ppm significantly increased the plant height, leaf area index (LAI), crown size and fruit yield. However, this dose of GA3 (150 ppm) significantly decreased the shelf life an...