Indium acetate (99.99%), zinc acetate (99,9%), myristic acid (>99%), tris (trimethylsilyl)phosphine (95%, (TMS)3P), 1-octadecene (90%, ODE), trioctylphosphine (97%, TOP), sulfur (99.99%), selenium (99.99%), dimethylformamide (DMF), poly (methyl methacrylate) (PMMA, MW ~350,000 GPC), aluminum isopropoxide (Al (IPA)3 98%), toluene, methanol, chloroform, acetone, hexane, D-penicillamine, tetramethylammonium hydroxide (TMAOH), phosphate-buffered saline solution (1xPBS), and tris (2-carboxyethyl) phosphine hydrochloride solution 0.5 M (TCEP) were purchased from Sigma-Aldrich. Zinc stearate (90%, ZnSt2) was acquired from Riedel de Haën. Oleic acid (70%) came from Fisher Chemicals. All chemicals were used as received without any further purification, unless stated otherwise.
Tetramethylammonium hydroxide
Manufactured by Merck Group
Sourced in United States, Germany
Tetramethylammonium hydroxide is a chemical compound used as a laboratory reagent. It is a clear, colorless, and highly alkaline solution. The compound is commonly used as a base in various chemical processes and analyses.
Automatically generated - may contain errors
Lab products found in correlation
1 octadecene, by Merck Group (6 mentions)
Oleic acid, by Merck Group (6 mentions)
Methanol, by Merck Group (4 mentions)
Dimethyl sulfoxide (dmso), by Merck Group (4 mentions)
Zinc acetate, by Merck Group (4 mentions)
Sodium hydroxide (naoh), by Merck Group (4 mentions)
Citric acid, by Merck Group (3 mentions)
Ammonium fluoride, by Merck Group (3 mentions)
Acetone, by Scharlab (3 mentions)
Toluene, by Merck Group (3 mentions)
Milli q water, by Merck Group (3 mentions)
Hydrochloric acid (hcl), by Merck Group (3 mentions)
Tetraethyl orthosilicate, by Merck Group (3 mentions)
Myristic acid, by Merck Group (2 mentions)
Tris trimethylsilyl phosphine, by Merck Group (2 mentions)
D penicillamine, by Merck Group (2 mentions)
Tris 2 carboxyethyl phosphine hydrochloride solution 0.5 m tcep, by Merck Group (2 mentions)
Zinc stearate, by Honeywell (2 mentions)
Chloroform, by Merck Group (2 mentions)
Indium acetate, by Merck Group (2 mentions)
46 protocols using tetramethylammonium hydroxide
1
Synthesis of Colloidal Nanoparticles
2
Quantification of Lead in Blood
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The BLL was quantified by using an inductively coupled plasma mass spectrometry with triple quadrupole technology (iCAP™ TQ ICP-MS, Thermo Fisher Scientific, Bremen, Germany). The EDTA blood was homogenized for 10 min by mechanical shaking; thereafter blood plasma (1.0 ml) was gravimetrically diluted (in precleaned polypropylene bottles kept in 2% nitric acid for 72 h) with 0.5% m/m nitric acid (Fisher Scientific) and 2% m/m tetramethylammonium hydroxide (Merck, Sigma Aldrich) in ultrapure water. A calibration blank, a series of standards, and a quality control were prepared by using the same procedure. All samples and standards were spiked with an internal standard mix (10 μg/L of 209Bi). The sample digests were filtered with Wattman paper several times to obtain a clear solution. The diluted digests were measured directly by ICP-MS, and the concentration of Pb in blood was quantified as μg/dl.
3
Ligand Removal from Gold Nanoparticles
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Example 3
An alcohol solution of tetramethyl ammonium hydroxide (conc.: 25 wt %, manufactured by Sigma-Aldrich Co., Ltd.) is obtained.
Gold nanoparticles having dodecanethiol surrounding a surface thereof (manufactured from Ocean nanotech Co., Ltd.) are dispersed in chloroform, and a Cu grid is immersed in the resulting dispersion to form a monolayer of gold nanoparticles on the Cu grid. The alcohol solution of tetramethyl ammonium hydroxide is applied onto the nanoparticles by adding the solution by drops thereto. The nanoparticles having the solution applied thereto are heated to 150° C. in air or in an inert gas atmosphere.
The nanoparticles prior to and after the treatment are subjected to transmission electron microscopic analysis using a TEM instrument (FEI/TECNAI F20 G2 200 kV), and the results are shown in
4
Synthesis of Rare-Earth Acetate Compounds
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Lanthanum(III) acetate hydrate 99.9%, cerium(III) acetate hydrate 99.9%, citric acid 99%, tetramethylammonium hydroxide 25 wt.% in water, and ammonium fluoride >99.99% were purchased from Sigma-Aldrich (Madrid, Spain). Acetone 99.5% was purchased from Scharlau (Barcelona, Spain). All reagents were used as received without further purification.
5
Synthesis of Colloidal Nanoparticles
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Cadmium oxide (CdO, 99.998%), 1-octadecene (ODE, technical grade, 90%), oleic acid (technical grade, 90%), ammonium hydroxide (NH4OH, 28% w/v), 2-(4-morpholinol)ethanesulfonic acid (MES, 99%) were purchased from Alfa Aesar. Hydrochloric acid (HCl, 37% w/v), nitric acid (HNO3, 70% w/v), hexane (HPLC grade), ethanol (EtOH, absolute 99%), chloroform (CHCl3, analytical grade) and sodium sulfite (Na2SO3, anhydrous) were purchased from Fisher Scientific. (3-aminopropyl) triethoxysilane (APTES, 98%) and 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMTMM, 97%) were purchased from Flurorochem (Derbyshire, UK). Tetraethyl orthosilicate (TEOS, 99%) and triethanolamine (TEA, 99%) were purchased from Merck (Southampton, UK). L-ascorbic acid (AA, 99%) was purchased from VWR. All remaining chemicals listed were purchased from Sigma Aldrich (Gillingham, UK): silver nitrate (AgNO3, 99%), trisodium citrate dihydrate (Na3Ct, 99%), tannic acid (ACS reagent), sulfur (99.5%), 3-mercaptopropionic acid (MPA, 99%), tetramethylammonium hydroxide (TMAH, 97%), chloroplatinic acid hexahydrate (H2PtCl6. 6H2O, BioXtra), and 4-methylmorpholine (NMM, 99%). All chemicals were used as received without further purification. Deionised water (DI) (Thermo Scientific Barnstead Smart2Pure, Loughborough, UK) with a resistivity of 18 MΩ·cm was used throughout all experiments.
6
Synthesis of Iron-based Nanocomposite
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Iron(iii ) perchlorate hexahydrate (Fe(ClO4)3·6H2O), polyvinylpyrrolidone (PVP, 10 000 g mol–1), tetramethylammonium hydroxide (TMAH), and polyacrylic acid (PAA, 100 000 g mol–1) were purchased from Sigma Aldrich and used as received. Sodium dihydrogen phosphate monohydrate (NaH2PO4·H2O) and urea from Fluka, tetraethyl orthosilicate (TEOS) from Merck, 3-aminopropyl tetraethoxysilane (APTES) from ABCR, and absolute ethanol from Fluka were also used without further purification. Ultra-pure water (18.2 MΩ cm resistivity) purified with a MilliQ system was used throughout all experiments.
7
Ligand Removal from Gold Nanoparticles
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Example 4
An alcohol solution of tetramethyl ammonium hydroxide (conc.: 25 wt %, manufactured by Sigma-Aldrich Co., Ltd.) is obtained. Gold nanoparticles having dodecanethiol surrounding a surface thereof (manufactured by Ocean NanoTech Co., Ltd.) are dispersed in chloroform, and a Cu grid is immersed in the resulting dispersion to form a monolayer of gold nanoparticles on the Cu grid. The alcohol solution of tetramethyl ammonium hydroxide is applied onto the nanoparticles by adding the solution by drops thereto. The nanoparticles having the solution applied thereto are heated to 100° C. and 140° C., respectively, in air or in an inert gas atmosphere.
The nanoparticles prior to and after the treatment are subjected to transmission electron microscopic analysis using a TEM instrument (FEI/TECNAI F20 G2 200 kV), and the results are shown in
8
Rare-earth metal complexes synthesis
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Yttrium(III) acetate hydrate 99.9%, yttrium(III)
trifluoroacetate 99%, yttrium(III) nitrate hexahydrate 99.8%, yttrium(III)
chloride hexahydrate 99.99%, samarium(III) acetate hydrate 99.9%,
europium(III) acetate hydrate 99.9%, lutetium(III) acetate hydrate
99.9%, citric acid 99%, maleic acid ≥99%, citraconic acid 98%,
tetramethylammonium hydroxide 25% v/v in water, tetrabutylammonium
fluoride hydrate 98%, and ammonium fluoride >99.99% were purchased
from Sigma-Aldrich. Ethanol 96% from Panreac, acetone 99.5% from Scharlau,
and deuterium oxide 99.90% D were purchased from euriso-top. All reagents
were used as received without further purification.
trifluoroacetate 99%, yttrium(III) nitrate hexahydrate 99.8%, yttrium(III)
chloride hexahydrate 99.99%, samarium(III) acetate hydrate 99.9%,
europium(III) acetate hydrate 99.9%, lutetium(III) acetate hydrate
99.9%, citric acid 99%, maleic acid ≥99%, citraconic acid 98%,
tetramethylammonium hydroxide 25% v/v in water, tetrabutylammonium
fluoride hydrate 98%, and ammonium fluoride >99.99% were purchased
from Sigma-Aldrich. Ethanol 96% from Panreac, acetone 99.5% from Scharlau,
and deuterium oxide 99.90% D were purchased from euriso-top. All reagents
were used as received without further purification.
9
Synthesis of Yttrium and Lanthanum Complexes
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Yttrium(iii ) acetate hydrate 99.9%, lanthanum(iii ) acetate hydrate 99.9%, citric acid 99%, tetramethylammonium hydroxide 25% v/v in water and ammonium fluoride > 99.99% were purchased from Sigma-Aldrich. Ethanol 96% was purchased from Panreac and acetone 99.5% from Scharlau. All reagents were used as received without further purification.
10
Synthesis of Tetramethylammonium Octanoate Electrolyte
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Example 9
A custom IL electrolyte was prepared for use in an electrochemical decarboxylation process to convert the sodium salt of a carboxylic acid into longer chain hydrocarbon dimers. The dimers produced can be used as a solvent or can be further processed for other applications such as fuels or lubricants. The IL electrolyte consisted of a tetramethylammonium cation and a carboxylate anion. The carboxylate anion was the same carboxylate that was being decarboxylated to form the hydrocarbon dimer.
The IL electrolyte was prepared by reacting tetramethylammonium hydroxide and octanoic acid. The octanoic acid and the tetramethyl ammonium hydroxide (25% in H2O, Sigma Aldrich) were slowly mixed together. The tetramethylammonium hydroxide was measured out to contain an equivalent number of moles to the octanoic acid. These were mixed at room temperature to allow for complete neutralization of the acid and base. This mixture was evaporated at 40° C. under vacuum until all the water had been removed. Following the evaporation of water, the final product of tetramethylammonium octanoate was obtained. This was found to melt at 100° C. and be stable to the addition of additional sodium octanoate needed to be used as an electrolyte.
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