Kenaf core powders (60–80 mesh) were obtained from the Malaysian Agricultural Research and Development Institute (MARDI). A single-walled carbon nanotube (CNT) with a length-to-diameter ratio of 103–104 was purchased from Tuball™ (Leudelange, Luxembourg). Sodium chlorite (NaClO2, 80%) and polyvinyl alcohol (PVA, Mw = 86,000 g/mol) were purchased from Acros Organics (Geel, Belgium). Acetic acid (96%), nitric acid (HNO3, 65%), acetone (>99.8%), ammonium fluoride (NH4F, ≥98%), phosphoric acid (H3PO4, 85%), sodium chloride (NaCl, ≥99.5%), and sodium sulfate (Na2SO4, >99%) were purchased from Merck Millipore (Burlington, MA, USA). Potassium permanganate (KMnO4, >99%) was purchased from Fisher Scientific (Waltham, MA, USA).
Phosphoric acid h3po4
Manufactured by Merck Group
Sourced in United States, Germany, Australia, Italy, India
Phosphoric acid (H3PO4) is a chemical compound that is commonly used as a laboratory reagent. It is a colorless, odorless, and viscous liquid with a strong acidic taste. Phosphoric acid is a triprotic acid, meaning it can donate up to three hydrogen ions (H+) in aqueous solutions. Its primary function is to provide a source of phosphate ions (PO4³-) for various chemical reactions and analyses in laboratory settings.
Automatically generated - may contain errors
Lab products found in correlation
Sulfuric acid h2so4, by Merck Group (10 mentions)
Hydrochloric acid (hcl), by Merck Group (8 mentions)
Methanol, by Merck Group (8 mentions)
Hydrogen peroxide h2o2, by Merck Group (6 mentions)
Sodium hydroxide (naoh), by Merck Group (5 mentions)
Ethanol, by Merck Group (4 mentions)
Potassium permanganate kmno4, by Merck Group (4 mentions)
Acetonitrile, by Merck Group (4 mentions)
Nitric acid hno3, by Merck Group (3 mentions)
Acetic acid, by Merck Group (3 mentions)
Potassium permanganate, by Merck Group (3 mentions)
N n dimethylformamide (dmf), by Merck Group (3 mentions)
Bovine serum albumin (bsa), by Merck Group (3 mentions)
Bovine serum albumin (bsa), by Thermo Fisher Scientific (3 mentions)
Graphite powder, by Merck Group (3 mentions)
Dimethyl sulfoxide (dmso), by Merck Group (3 mentions)
Hydrogen peroxide, by Merck Group (2 mentions)
Ammonium fluoride nh4f, by Merck Group (2 mentions)
Potassium permanganate kmno4, by Thermo Fisher Scientific (2 mentions)
Sodium chloride (nacl), by Merck Group (2 mentions)
69 protocols using phosphoric acid h3po4
1
Kenaf-Derived Nanocomposite Material Synthesis
2
Aptamer-Based Electrochemical Sensor for SARS-CoV-2 RBD
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The aptamer with the following sequences was obtained from Nzytech: 5′-NH2-(CH2)6- CAG CAC CGA CCT TGT GCT TTG GGA GTG CTG GTC CAA GGG CGT TAA TGG ACA-3′ [5 (link)]. Potassium hexacyanoferrate (III) (K3[Fe(CN)6]), potassium hexacyanoferrate (II) (K4[Fe(CN)6]), potassium chloride (KCl), ascorbic acid (AA), phosphoric acid (H3PO4), potassium hydroxide (KOH), melamine, cadmium chloride (CdCl2), sodium sulfide (Na2S), thioglycolic acid (TGA), and isopropanol alcohol were purchased from Merck. Severe acute respiratory syndrome coronavirus 2 receptor-binding domain (Sars-Cov-2 RBD), glutaraldehyde, chitosan, 6-amino-1-hexanol, and indium tin oxide (ITO) on the polyethylene terephthalate substrate were obtained from Sigma-Aldrich. Deionized (DI) water (18.6 MΩ) was used throughout.
3
Fabrication of Dye-Sensitized Solar Cells
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Titanium dioxide (P25) and pyrrole were purchased from Acros Organics. Graphite flakes were obtained from Ashbury Inc., USA. Common chemicals, such as toluene-4-sufonic acid sodium salt (NapTS), sulphuric acid (H2SO4, 98%), phosphoric acid (H3PO4, 85%), potassium permanganate (KMnO4, 99.9%), iron (III) chloride (FeCl3) and hydrogen peroxide (H2O2, 30%) were procured from Merck and used as such. Indium doped tin oxide (ITO) coated conducting glass slides (7 Ω/sq) were supplied by Xin Yan Technology Limited, China. N719 (Ruthenizer 535-bisTBA) and Iodolyte Z-100 were received from Solaronix.
4
Electrochemical Biosensor Development with Graphene Oxide
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Bay laurel leaves were purchased from JustIngredients Ltd. (UK). Graphene oxide with 4–10% edge-oxidised and carboxylic-acid-functionalised multiwalled carbon nanotubes (>8%), with an average diameter of 9.5 nm and a length of 1.5 μm, was used in the study. Chemicals such as gold chloride trihydrate HAuCl4·3H2O, sodium hydroxide NaOH, potassium ferricyanide K3[Fe(CN)6], potassium ferrocyanide K4[Fe(CN)6], potassium chloride KCl, glacial acetic acid, phosphoric acid H3PO4, boric acid H3BO3, and sulfuric acid H2SO4, along with gold(II) chloride and estradiol standard, were obtained from Merck (Dorset, UK). A solution of E2 (0.01 M), prepared in ethanol, was stored at +4 °C for future use. Deionised water from Suez Water System (UK) was used to prepare solutions for the study. A potassium ferricyanide solution was created by dissolving K3[Fe(CN)6] and potassium ferrocyanide K4[Fe(CN)6] in 0.1 M KCl and deionised water at concentrations of 5 mM, respectively. Britton–Robinson buffer solution (B-R) with varying pH levels between 2 and 8 was made using acetic acid (0.04 M), boric acid (0.04 M), phosphoric acid (0.04 M), and NaOH as needed to adjust the pH levels accordingly.
5
Crab-Shell Biowaste for Calcium Precursor
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The crab-shell (Portunus pelagicus) biowaste as calcium precursor (Figure 4 ) was obtained from the marine industry in the north coastal line of Pasuruan, East Java, Indonesia. Some chemicals were used in this research, e.g., diammonium phosphate (NH4)2HPO4, hydrochloric acid HCl 37%, phosphoric acid H3PO4 85%, ammonia NH3 25%, and ethanol 96% are purchased from Merck KGaA (Darmstadt, Germany).
6
Synthesis and Characterization of Graphene-Based Nanomaterials
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All reagents used in this research were analytical grade and were used without further purification or treatment. High-purity chemical reagents (graphite powder, silver nitrate (99.98%), sulfuric acid (H2SO4) 95%, phosphoric acid (H3PO4) 95%, nitric acid (HNO3) 65%, hydrogen peroxide 30%, hydrochloric acid (HCl) 37%, ethanol (≥99.5%), anhydrous dimethyl sulfoxide (DMSO), and potassium permanganate (KMnO4) were purchased from Merck and Sigma-Aldrich chemical companies. Standard bacterial strains of Escherichia coli (35218 ATCC) Pseudomonas aeruginosa (1214 PTCC) and Staphylococcus aureus, (1189 ATCC), and breast cancer cell line (MCF-7) were purchased from Pasteur Institute, Iran.
7
Synthesis of Stimuli-Responsive Polymer Nanoparticles
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Graphite flakes, phosphoric acid (H3PO4), potassium permanganate (KMnO4), N,N-dicyclohexylcarbodiimide (DCC), 4-dimethylaminopyridine (DMAP), copper bromide (CuBr), ε-caprolactone, N-isopropylacrylamide (NIPAm), and N-methylolacrylamide (NMA) were all purchased from Merck Chemical Co. Moreover, N-hydroxysuccinimide (NHS), N-ethylcarbodiimide hydrochloride (EDC), pyrrole, succinic anhydride, 3-bromo-1-propanol, stannous octoate (Sn(Oct)2), and N,N-dimethylformamide (DMF) were all purchased from Aldrich. All the chemicals were of analytical grade and used without any purification.
8
Zirconium Hydroxide Synthesis and Wine Analysis
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Zirconium hydroxide (Zr(OH)4) powder (M. wt. 159.25 g mol−1), zirconium (IV) oxide (M. Wt. 123.22 g mol−1; ≥99%), graphite powder, paraffin oil, analytical grade salts of potassium chloride, sodium dihydrogen phosphate dihydrate, disodium hydrogen phosphate heptahydrate, boric acid, glacial acetic acid, and gallic acid (anhydrous, M. Wt. 170.12 g mol−1) were purchased from Sigma Aldrich (London, UK). Analytical grade methanol, phosphoric acid (H3PO4), and sodium hydroxide were from Merck (Darmstadt, Germany). All the reagents were of the highest purity and no further purification was required. All the aqueous solutions used were freshly made with 18.2 MΩ.cm resistance value doubly distilled water. All stock solutions prepared were refrigerated at 4 °C and protected from light. The wine samples for the analytical application were commercially available brands of wine (Casillero Del Diablo Cabernet Sauvignon and Sauvignon Blanc).
9
Electrochemical Studies of Ivermectin Detection
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Electrochemical studies were performed with the Ivium pocketstat potentiostat/galvanostat impedance analyzer. During the experimental studies, ultrapure water from the Millipore direct-3QV brand device was used. pH measurements were carried out with the Ohaus starter 3000 Bench pH meter. In voltammetric studies, glassy carbon electrode (GCE, CHI104) and GCE modified with glutardialdehyde electrode (GA2/GCE) were used as working electrodes in separate measurements. Ag/AgCI (3 mol·L−1 NaCI) electrode was utilized as reference electrode (MF-2052, BASI) and as counter electrode Pt wire was used. Ivermectin (IVM, CAS no: 70288–86-7) determined during the study was obtained from Sigma-Aldrich company. The stock solution of 1 × 10−3 mol·L−1 IVM was prepared in methanol and stored at + 4 °C. Glutardialdehyde (GA2, 25%) which was used in the modification of the electrode surface was obtained from Merck company. In addition, all chemicals (sodium hydroxide (NaOH), hydrochloric acid (HCl), boric acid (H3BO3), acetic acid (CH3COOH), and phosphoric acid (H3PO4)) which were used for the Britton-Robinson buffer (BRT) solution preparation were of analytical purity and were obtained from Merck company.
10
Graphite-Based Nanocomposite Synthesis
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Graphite was obtained from a commercial 9B graphite pencil (Cretacolor, Hirm, Austria). Ultrapure water was obtained by using the water purification system (Thermo Fisher Scientific B-Pure, Waltham, MA, USA). Potassium permanganate (KMnO4) and lead nitrate II [Pb(NO3)2] were purchased from PanReac AppliChem (PanReac AppliChem, Barcelona, Spain). It was used polyvinylidene difluoride (PVDF) membranes of 0.45 μm pore size and nitrocellulose membranes of 0.02 μm pore size (Merck Millipore, Burlington, MA, USA). Ferrous sulfate heptahydrate (FeSO4∙7H2O), 37% (w/w) hydrochloric acid (HCl), 35% (V/V) hydrogen peroxide (H2O2), 65% (w/w) nitric acid (HNO3), 75% (V/V) phosphoric acid (H3PO4), sodium hydroxide (NaOH), and 96% (V/V) sulfuric acid (H2SO4) were purchased from Merck KGaA (Merck KGaA, Darmstadt, Germany). The GO and the nanocomposites were dried in a stove (Thermo Fisher Scientific, Waltham, MA, USA).
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