نتایج جستجو برای: acid washing activation
تعداد نتایج: 1135808 فیلتر نتایج به سال:
Radioactive and nonradioactive L-carnitine and acyl-L-carnitine were used to evaluate the washing procedures used during the determination of free, total, short-chain, and long-chain acylcarnitine in human and sheep plasma. The volume of fluid trapped by the protein precipitated by perchloric acid is approximately 24% of the total fluid volume and thus contains 24% of free carnitine and short-c...
soy protein concentrate (spc) is a functional and nutritional product which is produced under conditions where soy proteins are immobilized in soy flour and soluble carbohydrates are removed. in this study, four different soy flours including defatted soy flour (fat content 3.67, pdi 55.10), defatted and toasted soy flour (fat content 3.78, pdi 10.72), low fat soy flour (fat content 14.34, pdi ...
The shelf-life of conventional surimi and isolated proteins that modified by acidic pH (2.5) and by using alkali pH (11) from silver carp (Hypophthalmichthys molitrix) was studied during months of storage at -18±2 °C. For conventional surimi, three washing steps were used. In the third stage of washing, 0.2% NaCl was used to withdraw more water. The result showed that isolated protein by alkali...
Nickel foam substrates are frequently utilised as porous 3D for renewable energy applications. The preparation of these usually includes an acid-washing step, but the degree to which this step affects final electrochemical performance after spray-coating a catalyst ink is unreported. Herein, we report effects acid washing through physicochemical and characterisation. was determined repeated mea...
Centrifugation is commonly used to wash sperm; however, most washing techniques do not put sperm in a chemically defined environment. Rather, washing by centrifugation, in effect, dilutes seminal plasma components. A 0.5-mL volume of 30% (wt/vol) Accudenz was layered beneath 5 mL of 12% (wt/vol) Accudenz in a 15-mL polypropylene centrifuge tube. Diluted semen from individual males (n = 10) was ...
The control of chemical, morphological, textural and magnetic properties developed in activated carbons (MACs) from industrial food waste, was achieved. process parameters involved a sustainable optimized one-step activation route, based on the circular economy model, played an important role its influence studied, offering interesting outstanding results. Magnetite crystals were formed MACs su...
In this study, parameters affecting on SPE of trance trance muconic acid (t,t-MA), including sample pH, sample concentration, sample volume, sample flow rate, washing solvent, elution solvent, and type of sorbent were evaluated. After sample preparation of muconic acid as urinary metabolite of benzene, it was determined by HPLC-UV. In chromatographic analysis, column was C18 (250 cm × 4.6 mm id...
An efficient method for purification of Yard-Glass Shaped Boron Nitride NanoTubes (YG-BNNTs) fabricated via a Chemical Vapour Reaction (CVR) route has been developed. Impurities including carbon, Boron Nitride (BN), and Fe species in the pristine YG-BNNT sample are removed by a combined physical and chemical procedure which involv<e...
Exfoliation of graphite is a promising approach for large-scale production of graphene. Oxidation of graphite effectively facilitates the exfoliation process, yet necessitates several lengthy washing and reduction processes to convert the exfoliated graphite oxide (graphene oxide, GO) to reduced graphene oxide (RGO). Although filtration, centrifugation and dialysis have been frequently used in ...
modifying polyester spacer fabric by β-cyclodextrin produces a new product with outstanding characteristics. citric acid is used as a crosslinking agent for improvement of durability of this material in textile fabrics. in this research different concentrations of citric acid and β-cyclodextrin were applied on a 3d fabric and some properties including weight change, weight of moisture residue, ...
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