Tolperisone HCl pure drug was purchased from Combi-Blocks, USA. MYDOCALM® tablets labeled to contain 150 mg tolperisone HCl manufactured by labatec-pharma SA (Geneva), Switzerland, were obtained from local pharmacy. Paramol® 500 mg tablets labeled to contain 500 mg paracetamol was from (Misr Co for Pharm. Ind.S.A.E., Cairo, Egypt). Voltaren®50 tablets labeled to contain 50 mg diclofenac natrium was obtained from (Novartis, Cairo, Egypt). Poly (vinyl chloride) (PVC) of high molecular weight, dibutyl phthalate (DBP), ortho nitrophenyl octyl ether (o-NPOE), and graphene nano-platelets powder hydrophobic were purchased from (Sigma-Aldrich, St. Louis, USA). Phosphotungestic acid (PTA) was purchased from (Fluka, Switzerland). Sodium tetraphenylborate (Na-TPB) was from (oxford lab fine chem, India). Ammonium Reinecke (RKT) and monobasic sodium phosphate were from (Riedel–De Haen AG, Hannover, Germany). Graphite powder (particle size < 50 μm) was purchased from (Merck, Darmstadt, Germany). All the reagents were of analytical grade and the experiments were constructed using double distilled water.
Polyvinyl chloride pvc
Manufactured by Merck Group
Sourced in United States, Germany
Polyvinyl chloride (PVC) is a versatile thermoplastic polymer commonly used in the manufacturing of various types of lab equipment. It has a core function of providing a durable, flexible, and chemically resistant material for the construction of equipment components, tubing, and other laboratory-related products.
Automatically generated - may contain errors
Lab products found in correlation
Tetrahydrofuran, by Merck Group (3 mentions)
Poly 3 octylthiophene 2 5 diyl pot, by Merck Group (2 mentions)
Tetrahydrofuran thf, by Merck Group (2 mentions)
Valinomycin, by Merck Group (2 mentions)
Dimethylformamide dmf, by Merck Group (2 mentions)
Dibutyl phthalate dbp, by Merck Group (1 mentions)
Ortho nitrophenyl octyl ether o npoe, by Merck Group (1 mentions)
Graphene nanoplatelet, by Merck Group (1 mentions)
Graphite powder, by Merck Group (1 mentions)
Hexane, by Merck Group (1 mentions)
Magnesium sulfate, by Merck Group (1 mentions)
Ellman s reagent, by Merck Group (1 mentions)
Lugol s iodine, by Merck Group (1 mentions)
Tert butyl nitrite, by Thermo Fisher Scientific (1 mentions)
N acetyl d penicillamine, by Merck Group (1 mentions)
α cyano 4 hydroxycinnamic acid, by Merck Group (1 mentions)
Chloroform, by Merck Group (1 mentions)
Ethanol, by Merck Group (1 mentions)
Toluene, by Merck Group (1 mentions)
Methanol, by Merck Group (1 mentions)
14 protocols using polyvinyl chloride pvc
1
Analytical Method Development for Tolperisone
2
Synthesis and Characterization of Peptide Derivatives
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Ethylenediamine, methyl acrylate, methanol, ethanol, toluene, pyridine, acetic anhydride, chloroform, hexanes, hydrochloric acid, magnesium sulfate, α-Cyano-4-hydroxycinnamic acid, Lugol’s iodine, glacial acetic acid, N-acetyl-D-penicillamine, and Ellman’s reagent were all purchased from Sigma Aldrich (St. Louis, MO, USA). ATTO-TAGTM FQ reagent was purchased from Invitrogen (Grand Island, NY, USA). Tert-butyl nitrite (90% technical grade, Acros Organics) was purchased from Fisher Scientific. Polyvinyl chloride (PVC) (MW 233,000, Mn = 99,000) was purchased from Sigma Aldrich (St. Louis, MO, USA).
3
Fabrication and Characterization of pH Sensors
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Aqueous solutions were prepared by dissolving salts and acids in distilled and deionized water. Standard solutions of fixed pH value were prepared by dissolving citric acid (POCH, Gliwice, Poland) and boric acid (POCH). The buffer solution of 1 mM citric acid and 1 mM boric acid was titrated with 1M sodium hydroxide and 1M hydrochloric acid. NaOH (POCH) and HCl (POCH) were added to meet the desired pH value that is 4-12 and 2-3, respectively. All chemicals used for solution preparation were of analytical grade and were used as received without any further purification.
Designed pH sensors are ion-selective electrodes characterized by a sandwich structure with ion-selective membrane placed on the solid-contact layer. The solid-contact layer consisted of hydrous iridium dioxide (hIrO2) (Alfa Aesar, Haverhill, MA, USA), multiwalled carbon nanotubes (NTs) (Nanostructured & Amorphous Materials, Inc., Houston, TX, USA), and Poly(3- octylthiophene-2,5-diyl) (POT) (Sigma Aldrich, St. Louis, MO, USA). The ion-selective membrane consisted of hydrogen ionophore V (Calix[4]-aza-crown), sodium tetrakis(4-fluorophenyl)borate dihydrate, 2-Nitrophenyl octyl ether (NPOE), and poly(vinyl chloride) (PVC) of high molecular weight were purchased from Sigma-Aldrich. Dimethylformamide (DMF) and Tetrahydrofuran (THF) used as solvents were also purchased from Sigma-Aldrich.
Designed pH sensors are ion-selective electrodes characterized by a sandwich structure with ion-selective membrane placed on the solid-contact layer. The solid-contact layer consisted of hydrous iridium dioxide (hIrO2) (Alfa Aesar, Haverhill, MA, USA), multiwalled carbon nanotubes (NTs) (Nanostructured & Amorphous Materials, Inc., Houston, TX, USA), and Poly(3- octylthiophene-2,5-diyl) (POT) (Sigma Aldrich, St. Louis, MO, USA). The ion-selective membrane consisted of hydrogen ionophore V (Calix[4]-aza-crown), sodium tetrakis(4-fluorophenyl)borate dihydrate, 2-Nitrophenyl octyl ether (NPOE), and poly(vinyl chloride) (PVC) of high molecular weight were purchased from Sigma-Aldrich. Dimethylformamide (DMF) and Tetrahydrofuran (THF) used as solvents were also purchased from Sigma-Aldrich.
4
Synthesis and Characterization of Functional Polymers
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Acrylamide (AA), azobisisobutyronitrile (AIBN), polyvinylchloride (PVC) and silver nitrate (AgNO3) were obtained from Sigma-Aldrich, Zwijndrecht, The Netherlands. Methanol absolute and acetonitrile were bought at Biosolve B.V., Valkenswaard, The Netherlands. Acetone pure (purity > 99.9%), sodium hydroxide, sulfuric acid, ethanol, salicylic acid and phosphate buffered saline (PBS) tablets were acquired from VWR chemicals, Amsterdam, The Netherlands. Ethylenediamine (EDA), hydrazine hydrate and ethylene glycol dimethacrylate (EGDM) were procured from Merck Schuchardt OHG, Hohenbrunn, Germany. Polydimethysiloxane (PDMS) stamps were made with the Sylgard 184 elastomer kit from Mavom NV, Schelle, Belgium. Aluminum chips were purchased at Brico NV, Korbeek Lo, Belgium, and cut to the desired dimensions.
5
Nitrate-selective Carbon Paste Electrode
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The components of the carbon paste were paraffin oil (Sigma-Aldrich, Burlington, MA, USA), carbon black (3D Nano, Krakow, Poland), ruthenium (IV) oxide hydrate (Alfa Aesar, Lancashire, UK), iridium (IV) oxide dihydrate (Alfa Aesar), and poly(3-octylthiophene-2,5-diyl) (Sigma-Aldrich).
The ion-selective membrane components—nitrate ionophore V, lipophilic salt-tridodecylmethylammonium chloride (TDMACl), 2-nitrophenyl octyl ether (o-NPOE), and poly(vinyl chloride) (PVC)—were dissolved in tetrahydrofuran. All components were purchased from Sigma-Aldrich.
Potassium nitrate (KNO3) and other chemicals were purchased from POCH (Gliwice, Poland), and solutions of NO3− ions with concentrations of 10−7 to 10−1 M were used for potentiometry, chronopotentiometry, and EIS measurements.
The ion-selective membrane components—nitrate ionophore V, lipophilic salt-tridodecylmethylammonium chloride (TDMACl), 2-nitrophenyl octyl ether (o-NPOE), and poly(vinyl chloride) (PVC)—were dissolved in tetrahydrofuran. All components were purchased from Sigma-Aldrich.
Potassium nitrate (KNO3) and other chemicals were purchased from POCH (Gliwice, Poland), and solutions of NO3− ions with concentrations of 10−7 to 10−1 M were used for potentiometry, chronopotentiometry, and EIS measurements.
6
Ibuprofen and Progesterone Formulation Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Ibuprofen and progesterone (purity ≥ 99.0%) were purchased respectively from Hubei Biocause Pharmaceutical Coprporation Jingmen, Hubei, China) and Upjohn Company (Kalamazoo, MI, USA; Figure 1 ). They were used without further purification. Native β-CDs were obtained from Roquette (Lestrem, France). Polyvinyl chloride (PVC) with a molecular weight of 230,000 Da and dibutylphtalate (DBP) were purchased respectively from Sigma-Aldrich (Saint-Louis, MI, USA) and VWRTM (Radnor, PA, USA). All other reagents were of analytical grade.
7
Milkweed Fibers Reinforced Polymer Composites
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Common milkweed fibers
(Asclepias syriaca) were harvested
from a local farm in Granby (Quebec, Canada). Upon measurement, the
average cell wall thickness and fiber diameter were found to be 900
± 120 and 20 ± 3 μm, respectively (Figure 1 ). They were treated with chloroform
for 10 min to remove any waxes from their surfaces. In some cases,
these fibers were pretreated with graphene oxide solutions for 5 min
at different concentrations (0, 0.15 and 0.35 mg/mL) to promote the
development of the transcrystallization layer. PCL, with an average
molecular weight (Mw) of 10,000 g/mol,
melting point (Tm) of 60 °C, and
glass transition temperature (Tg) of −59
°C (measured by differential scanning calorimetry, DSC), was
supplied by Sigma-Aldrich Canada. Polyvinyl chloride (PVC), with an
average Mw of 67,000 g/mol and Tg of 80 °C (measured by DSC); was supplied
by Sigma-Aldrich Canada. Tetrahydrofuran (THF) and chloroform (CHCl3) used in this study were of analytical grade.
(Asclepias syriaca) were harvested
from a local farm in Granby (Quebec, Canada). Upon measurement, the
average cell wall thickness and fiber diameter were found to be 900
± 120 and 20 ± 3 μm, respectively (
for 10 min to remove any waxes from their surfaces. In some cases,
these fibers were pretreated with graphene oxide solutions for 5 min
at different concentrations (0, 0.15 and 0.35 mg/mL) to promote the
development of the transcrystallization layer. PCL, with an average
molecular weight (Mw) of 10,000 g/mol,
melting point (Tm) of 60 °C, and
glass transition temperature (Tg) of −59
°C (measured by differential scanning calorimetry, DSC), was
supplied by Sigma-Aldrich Canada. Polyvinyl chloride (PVC), with an
average Mw of 67,000 g/mol and Tg of 80 °C (measured by DSC); was supplied
by Sigma-Aldrich Canada. Tetrahydrofuran (THF) and chloroform (CHCl3) used in this study were of analytical grade.
8
Fabrication of Sodium-Selective Ionophore Membrane
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Selectophore grade sodium ionophore X (4-tertbutylcalix [4]arene-tetraacetic acid tetraethyl ester), sodium tetrakis [3,5-bis(trifluoromethyl) phenyl] borate (Na-TFPB), 2-nitrophenyl octyl ether (2-NPOE), tetrahydrofuran (THF), and poly (vinyl chloride) (PVC) were purchased from Sigma-Aldrich. The ionophore membrane was prepared by mixing 1 mg sodium ionophore X, 47.2 mg PVC, 90.7 µL 2-NPOE, and 0.29 mg Na-TFPB [33 (link)]. The mixture was dissolved in 1 mL THF and sonicated for 1 h, then stored at 4 °C for further usage.
9
Valinomycin-Based Ion-Selective Sensor
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Valinomycin, sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate
(NaTFPB), bis(2-ethylhexyl) sebacate (DOS), poly(vinyl chloride) (PVC),
and tetrahydrofuran (THF) were obtained from Sigma Aldrich. Poly(3-octylthiophene-2,5-diyl)
(POT) was obtained from Rieke Metals. Potassium chloride, sodium chloride,
and K4[Fe(CN)6] were of analytical grade and
were obtained from POCh (Gliwice, Poland). Ultrapure water with a
resistivity of 18.2 MΩ cm (Milli-Q plus, Millipore) was used
throughout the work.
(NaTFPB), bis(2-ethylhexyl) sebacate (DOS), poly(vinyl chloride) (PVC),
and tetrahydrofuran (THF) were obtained from Sigma Aldrich. Poly(3-octylthiophene-2,5-diyl)
(POT) was obtained from Rieke Metals. Potassium chloride, sodium chloride,
and K4[Fe(CN)6] were of analytical grade and
were obtained from POCh (Gliwice, Poland). Ultrapure water with a
resistivity of 18.2 MΩ cm (Milli-Q plus, Millipore) was used
throughout the work.
10
PVC Membrane Fabrication and Characterization
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Polyvinyl chloride (PVC) with an average molecule weight of 43,000 Da was obtained from Sigma-Aldrich (Merck KGaA, Darmstadt, Germany). Dimethyl acetate (DMAc) solvent was obtained from Wako, Pure Industries Japan. Distilled water was produced in the laboratory. PF127 was obtained from BASF Co. (Ludwigshafen, Germany). Dextran with an average molecular weight of 10,000 Da, which was used for the rejection test, was bought from Sigma-Aldrich. All chemicals were used directly without previous treatment.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!