Theme Colors

Leave Us A Message Here

  • Benzotriazole as inhibitor for copper with and without

    Benzotriazole as inhibitor for copper with and without

    Benzotriazole as inhibitor for copper with and without corrosion products in aqueous polyethylene glycol E. GUILMINOT*1, J J. RAMEAU1, F. DALARD1,

    learn more

  • Development of a Cobalt Dicarbollide/Polyethylene Glycol

    Development of a Cobalt Dicarbollide/Polyethylene Glycol

    The solvent for this process is a mixture of chlorinated cobalt dicarbollide CCD for cesium extraction and polyethylene glycol PEG for strontium extraction diluted by phenyltrifluoromethyl

    learn more

  • 1. Introduction   Hindawi Publishing Corporation

    1. Introduction Hindawi Publishing Corporation

    We have recently introduced silica gel polyethylene glycol silica PEG as an adsorbent for preconcentration of cobalt and nickel followed by flame atomic absorption spectrometric determination. In this paper a different aspect for using this adsorbent is presented and a new solid phase extraction method for preconcentration of trace iron

    learn more

  • PREDISPERSED SOLVENT EXTRACTION OF HEAVY METALS USING

    PREDISPERSED SOLVENT EXTRACTION OF HEAVY METALS USING

    copper and nickel extractant, and this was diluted in kerosene sodium dodecyl sulphate SDS was used as an anionic water soluble surfactant in the generation of CLAs. In the case of copper extraction, cationic hexadecyl trimethylammonium bromide CTAB and non ionic polyethylene

    learn more

  • Polyhydroxybutyrate b polyethyleneglycol block copolymer

    Polyhydroxybutyrate b polyethyleneglycol block copolymer

    The purpose of this work is the preconcentrationseparation of PbII and CuII onto polyhydroxybutyrate b polyethylene glycol PHB b PEG as a solid phase extractor. This polymer has not been used before for solid phase extraction of trace elements according to our literature survey. 2. Experimental 2.1. Instrumentation

    learn more

  • Development of a Cobalt Dicarbollide/Polyethylene Glycol

    Development of a Cobalt Dicarbollide/Polyethylene Glycol

    The solvent for this process is a mixture of chlorinated cobalt dicarbollide CCD for cesium extraction and polyethylene glycol PEG for strontium extraction diluted by phenyltrifluoromethyl

    learn more

  • Polyhydroxybutyrate b polyethyleneglycol block copolymer

    Polyhydroxybutyrate b polyethyleneglycol block copolymer

    The purpose of this work is the preconcentrationseparation of PbII and CuII onto polyhydroxybutyrate b polyethylene glycol PHB b PEG as a solid phase extractor. This polymer has not been used before for solid phase extraction

    learn more

  • Is THC soluble in propylene glycol? : CannabisExtracts

    Is THC soluble in propylene glycol? : CannabisExtracts

    So I have tried many different methods at home to get THC into vegetable glycol and make it stable and so far this has worked best: If you try to get stable shatter to melt into VG it wont stay together and will seperate fairly quickly, even with heat and time and mixing, it will

    learn more

  • A novel and efficient immunoglobulin Y extraction method

    A novel and efficient immunoglobulin Y extraction method

    ABSTRACTAlthough many IgY extraction methods such as polyethylene glycol PEG precipitation method, octanoic acid method, water dilution method, etc. have been established, there is still industrial drive and real need in developing scale up IgY production methods. Some previous studies have reported that poloxamer degreasing method shows very good result in IgY extraction from egg yolk

    learn more

  • Cu catalysed N alkynylation of imidazoles, benzimidazoles

    Cu catalysed N alkynylation of imidazoles, benzimidazoles

    mL containing polyethylene glycol 400 PEG400, 200 mg and the bromoalkyne 1.10 mmol. was evacuated and back filled with nitrogen gas three times. The PEG containing dioxane solution was then added to the reaction flask via a syringe and the reaction mixture heated to 70 °C for 45 minutes. In a separate flask, a solution of dry dioxane 1

    learn more

  • EFFECT OF EXISTENCE Zn2+ AND Cu IONS ON EXTRACTION

    EFFECT OF EXISTENCE Zn2+ AND Cu IONS ON EXTRACTION

    extraction process. The efficiency of the extraction of goldIII fell to 92.60 in the presence of Zn2+ ions, while the presence of Cu2+ ions causes the extraction efficiency decreased to 91.30 . Keywords: Extraction, Gold, Two phase system, Polyethylene glycol I. INTRODUCTION Gold is known as a high value metals. That is not only because of

    learn more

  • Effects of Solvents in the Polyethylene Glycol Series on

    Effects of Solvents in the Polyethylene Glycol Series on

    11/12/2012· The effects of reducing solvents on the bonding process using silver oxide paste in a copper joint were investigated. Three solvent types were tested: diethylene glycol DEG, triethylene glycol TEG, and polyethylene glycol PEG. The strength of the joints was assessed by fracturing, which occurred at the interface of the copper oxide layer and the copper substrate in DEG and TEG

    learn more

  • ReAgent Sells Copper Sulphate, How Is It Made? ReAgent Blog

    ReAgent Sells Copper Sulphate, How Is It Made? ReAgent Blog

    In industrial settings, copper sulphate is extracted from copper ores or from nonferrous scrap. After extraction, copper is dissolved in diluted sulphuric acid in the presence of air, producing a saturated liquor. To obtain copper sulphate crystals, this solution is allowed to cool down slowly in large containers with lead strips to provide a

    learn more

  • Extraction of Monocarboxylic Acids from Diluted Solutions

    Extraction of Monocarboxylic Acids from Diluted Solutions

    06/11/2019· An aqueous two phase system based on polyethylene glycol 1500 and sodium sulfate for the extraction of a number of monocarboxylic acids from aqueous solutions has been studied. The

    learn more

  • Triton X 100 laboratory grade  Polyethylene glycol tert

    Triton X 100 laboratory grade Polyethylene glycol tert

    General description Triton X 100 has hemolytic property and is used for DNA extraction.. Triton X 100 ismon non ionic surfactant and emulsifier which is often used in biochemical applications to solubilize proteins. It is consideredparatively mild detergent, non denaturing, and is reported in numerous references as a routinely added reagent.

    learn more

  • An Optimized Protocol for the Efficient Radiolabeling of

    An Optimized Protocol for the Efficient Radiolabeling of

    10/10/2016· For 125 I labeling of polyethylene glycol modified gold nanoparticles, the DBCO group modified gold nanoparticles were prepared by the procedure shown in Figure 1. An excess amount of polyethylene glycol thiol MW 5,000 with DBCO groups was reacted with the citrated, stabilized 13 nm gold nanoparticles.

    learn more

  • Friedreich's Ataxia Causes Redistribution of Iron, Copper

    Friedreich's Ataxia Causes Redistribution of Iron, Copper

    Friedreich's ataxia FRDA causes selective atrophy of the large neurons of the dentates DN. High iron Fe concentration and failure to clear the metal from the affected brain tissue are potential risk factors in the progression of the lesion. The DN also contains relatively high amounts of copper Cu and zinc Zn, but the importance of these metals in FRDA has not been established

    learn more

  • Copper ion removal from dilute solutions using colloidal

    Copper ion removal from dilute solutions using colloidal

    2.4. Extraction process. Copper extraction experiments were conducted in 50 mL centrifuge tubes, 6.5 g equal to 10 mL at a PVR of 4 of CLAs were added to 10 mL of Cu II solution. The mixture was mixed for 30 s followed by phase separation in a centrifuge 5 min, 4400 rpm. After centrifuging, the raffinate was removed and diluted with 4

    learn more

  • PDF Solid Phase Extraction of CopperII from Aqueous

    PDF Solid Phase Extraction of CopperII from Aqueous

    The presented study investigates application of polyethylene glycol coated Fe 3 O 4 nanoparticles as an adsorbent for solid phase extraction and determination of trace amount of copper from water

    learn more

  • Application of Polyhydroxybutyrate b polyethyleneglycol a

    Application of Polyhydroxybutyrate b polyethyleneglycol a

    30/06/2014· Free Online Library: Application of Polyhydroxybutyrate b polyethyleneglycol a block co polymer for Solid Phase Extraction of Lead and Copper in Different Food Samples. by Pakistan Journal of Analytical and Environmental Chemistry Chemical tests and reagents Copolymers Polymer industry Reagents

    learn more

  • CORE

    CORE

    Polyethylene glycol tert octylphenyl ether Triton X 114 was used as an extracting agent in the presence of sodium dodecylsulphate SDS. After phase separation, based on the cloud point of the mixture, the surfactant rich phase was diluted with acetone, and the enriched analyte was spectrophotometrically determined at 537 nm. The variables

    learn more

  • Chemical Mechanism of Suppression of Copper

    Chemical Mechanism of Suppression of Copper

    Chemical Mechanism of Suppression of Copper Electrodeposition by Polyethylene glycol Abstract Polyethylene glycol PEG is an important additive to electroplating baths used for the deposition of copper interconnects on semiconductor wafers. In an earlier paper, Yokoi

    learn more

  • The Extraction of Glycols From Water Using ENVI Carb Plus

    The Extraction of Glycols From Water Using ENVI Carb Plus

    The extraction method was evaluated for use with seawater*, and seawater artificially adulterated with hydrocarbon contamination in the form of oil. Of specific interest was the recovery of propylene glycol, however the recovery of the remaining glycol and glycolpounds was also determined.

    learn more

  • Catalytic effect of polyethylene glycol on sulfur

    Catalytic effect of polyethylene glycol on sulfur

    Polyethylene glycol PEG was used as a catalyst to enhance chalcopyrite bioleaching with Acidithiobacillus ferrooxidans in shake flasks. The effects of PEG on the sulfur oxidation of A.

    learn more

  • Extraction conditions of polyphenol oxidase from banana peel

    Extraction conditions of polyphenol oxidase from banana peel

    damaged during handling. The best conditions for extraction of polyphenol oxidase from banana peel was by using an extraction buffer containing phosphate buffer 0.05 M, pH 7, 0.01 M ascorbic acid and 0.5 polyethylene glycol, with extraction ratio 1:4 w:v for one minute by using blender. The enzyme activity was measured

    learn more

  • Ethylene glycol

    Ethylene glycol

    Ethylene glycol is widely used to inhibit the formation of natural gas clathrates hydrates in long multiphase pipelines that convey natural gas from remote gas fields to a gas processing facility. Ethylene glycol can be recovered from the natural gas and reused as an inhibitor after purification treatment that removes water andanic salts.

    learn more

  • copper extraction with polyethylene glycol diluted in 1

    copper extraction with polyethylene glycol diluted in 1

    copper extraction with polyethylene glycol diluted in 1 Modification of polyethylene glycol onto solid lipid 9/17/2012Normal saline 1.5 mL was added to the excised tissue in a homogenizer at 26,000 rpm for 30 seconds then 50 L of 5 g/mL IS and 6 mL dichloromethane were added for extraction.

    learn more

  • Application of polyethylene glycol based aqueous two phase

    Application of polyethylene glycol based aqueous two phase

    In this work the partitioning behavior of HgII, ZnII and CoII was measured in a polyethylene glycol based aqueous two phase system PEGATPS containing Na 2 CO 3 as a phase forming salt. The

    learn more

  • A cost effective polyethylene glycol based method for the

    A cost effective polyethylene glycol based method for the

    10/03/2020· Polyethylene glycol, Mn 6000Da PEG6000 can be used for enrichment of ginger ENPs. Poly ethylene glycol, Mn 6000 Da PEG6000 based enrichment is a

    learn more

  • Extraction of Monocarboxylic Acids from Diluted Solutions

    Extraction of Monocarboxylic Acids from Diluted Solutions

    Request PDF Extraction of Monocarboxylic Acids from Diluted Solutions with Polyethylene Glycol An aqueous two phase system based on polyethylene glycol 1500 and sodium sulfate for the

    learn more

  • Fractionation of heavy metals in liquefied chromated

    Fractionation of heavy metals in liquefied chromated

    sequential extraction is recognized as the best available method for gaining information on the origin, manner of occurrence, bio availability, mobilization, and transport of heavy metals Ma and Rao, 1997. In the study presented in this paper, spent CCA treated wood was liquefied with polyethylene glycol PEG using sulfuric acid as a

    learn more

  • Extraction of CuII ions from aqueous media using PEG

    Extraction of CuII ions from aqueous media using PEG

    A simple ATPS of polyethylene glycol/sulphate salt was proposed for the extraction of CuII ions from aqueous media. Maximum extraction efficiency of Cu ions was obtained in the aqueous PEG2000/ sodium sulphate two phase system. In the following, design of experimental methodology using Taguchi orthogonal array was applied to evaluate the

    learn more

  • New Potentials in the Extraction of Trace Metal Using

    New Potentials in the Extraction of Trace Metal Using

    10/01/2019· The extraction of zinc indicated that NADES contained choline chloride with ethylene glycol, or ethylene glycol with betaine ternary system and fructose:citric acid with water were the most efficient solvents. Note that for copper extraction, both choline chloride:ethylene glycol and fructose:citric acid also indicated the best efficiency

    learn more

  • Copper Bioleaching in China: Review and Prospect

    Copper Bioleaching in China: Review and Prospect

    regulation surfactants like polyethylene glycol, sodium lauryl sulfate, and silver and ultrasonic intensification were proposed. Advanced aerial image analysis has been applied to assess particle size segregation in copper heap leaching . Except for Australia, the United States, and other developed mining countries, the factorsmercial application are

    learn more

  • Copper Removal and Recovery by Supported Liquid Membranes

    Copper Removal and Recovery by Supported Liquid Membranes

    We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.

    learn more

  • polyethylene glycol  Sigma Aldrich

    polyethylene glycol Sigma Aldrich

    Search results for polyethylene glycol at Sigma Aldrich

    learn more

Categories