ipl-logo

Acetaminophen Powder

724 Words3 Pages

All electrochemical measurements were performed with an Autolab potentiostat/galvanostat (PGSTAT 101, Eco Chemie, The Netherlands) interfaced with a Nova 1.11 software. A three-electrode system was used in this work consisting of a platinum wire as the auxiliary electrode, an Ag/AgCl/KCl (saturated) as the reference electrode, and a modified carbon paste electrode as the working electrode. A metrohm 827 pH lab (Herisau, Switzerland) supplied with a combination glass-reference electrode was used for pH measurements. 2.2. Materials Acetaminophen powder and TiO2 nanoparticles were purchased from Sigma-Aldrich (Taufkirchen, Germany). A 5.0 mM stock solution of acetaminophen was prepared by dissolving an appropriate amount of the powder in a small …show more content…

Paraffin oil was then added to the mixture and mixed until a uniformly wet paste was achieved and then the resulting paste was placed in the bottom of a glass tube.The electrical connection was established via a copper wire to the paste. The resulting electrode was designated as chitosan/TiO2 nanoparticles-carbon paste electrode (ChiTNP-CPE).The surface of the electrode was gently flattened by rubbing it on a piece of filter paper until it is completely uniform, smooth,and shiny. Finally, it was rinsed with double distilled water. An unmodified carbon paste electrode (CPE) without any contain chitosan and TiO2 nanoparticles was made in a similar way for use in comparative …show more content…

Next, while stirring the solution for 400 sec, a 0.50 V voltage was applied to the electrode. The electrode was then washed thoroughly with sodium acetate-acetic acid buffer solution. The obtained electrode is called ChiTNP-CPE/DNA.To evaluate the DNA immobilization on the electrode surface,the study of cyclic voltammetry[Fe(CN)6]3-/4- redox couple was performed at the presence and absence of DNA.The work is based on the large electrostatic repulsion between this redox couple and the negatively charged DNA [22]. For this purpose, cyclic voltammograms (CVs) of 20 mL of a solution containing 0.05 M [Fe(CN)6]4− and 0.5 M KClwere performed on the surface of bare CPE, ChiTNP-CPE, and ChiTNP-CPE/DNA at a scan rate of 100 mV/s (Fig. 1). As can be seen, a pair of reduction and oxidation peaks is found for the [Fe(CN)6]3-/4- redox couple at CPE surface.At the surface of ChiTNP-CPE, the currents of both peaks increase along with an improvement in the redox reversibility due to electrostatic adsorption of negative species of [Fe(CN)6]3-/4- and cationic polymer in chitosan. As can be seen, immobilization of DNA on the surface of ChiTNP-CPE noticeably decreases the peak currents and redox reversibility of the indicator. This observation suggests that the negatively charged phosphate groups of DNA lead to the electrostatic repulsion of the redox couple on the

Show More
Related
488 Words | 2 Pages

This layer is virtually invisible as it has a very small thickness and is also transparent. In order to prevent the fogging and dirt on glasses, the coating must be under UV illumination for it to sustain the hydrophobic property. 3.2.2 Methods to fabricate TiO2-SWCNT composite There are enormous methods available to prepare the nanocomposite of CNT and TiO2 which are sol-gel method, electrospinning method, hydrothermal and more. 3.2.2.1 Sol-gel synthesis Sol-gel is a method in which small molecules are used to produce solid materials. The method is used for the fabrication of metal oxides.

Read More
979 Words | 4 Pages

1mL of Acetic acid was then added to Unknown D and the solution was stirred. Next, 15mL of sodium

Read More
8201 Words | 33 Pages

Figure 20 and 21 casting tray Figure 22 gel box After 1 hr., take out the gel from gel box carefully, place it into the machine, so that the DNA gel electrophoresis can be visualize under UV light. Figure 23 gel documentation system, used to visualize gel electrophoresis with UV light NMR spectroscopy First of all, 3 samples were prepared, peptide in SDS, DPC, and buffer. The sample temperature was maintained at 298 K, prepared by supervisor and H(hydrogen) in SDS and DPC micelle was replaced with D(deuterium) , so that in proton NMR, peptide won’t be interfered by H in micelle. amount of peptide in sds and dpc

Read More
1529 Words | 7 Pages

In this experiment, the objective was to set up a voltaic cell and use it to carry out two electrolysis processes to determine the equivalent weights of zinc and copper. The procedure involved using zinc strips, copper strips, zinc wire, copper wire, a zinc plating solution, a CuSO4 solution, an ammeter, wooden blocks, alligator clamps, and beakers. However, the main findings of the experiment showed that the equivalent weights for both copper and zinc were not as expected. Copper had over 300

Read More
500 Words | 2 Pages

In this lab, we tested 8 known ingredients to find what ingredients was in our unknown A and unknown B medications. We first tested the water solubility of our knowns and unknowns. We found that of the knowns, cornstarch and acetaminophen were the only ones not water soluble. The unknowns were also not water soluble. Th next test was the pH test.

Read More
1525 Words | 7 Pages

The quantitative solubility of the unknown compound was determined to be 29/100ml. The known solubility of sodium sulfate is 28.11g/100mL water. Using the found solubility to compare to the known solubility of sodium sulfate. This solution created in the solubility test, the conductivity of the unknown compound was tested using an Ohmmeter to measure the resistance of the solution. Resistance is the measure of a substances ability to conduct

Read More
490 Words | 2 Pages

This then resulted in a change of color for the indicator. Similarly Erio-Black T is also a good substance to use for testing the water samples in this experiment because it works as an indicator and changes from red then to purple and finally to blue around the pH range of 7-11. In addition, we used a pH 10 buffer to ensure that the

Read More
1270 Words | 6 Pages

Lastly, the unknown compound was reacted with two different salts. For the first salt, 0.50 grams of KCl was mixed with 5 mL of water in one beaker while 0.5 grams of NaNO3 was mixed with 5 mL of water in a different beaker. Then, the NaNO3 solution was added to the KCl solution. To perform the reaction with the second salt, 0.50 grams of KCl was mixed with 5 mL of water and 1 mL of 1 M Ag(NO3)2 was added. After performing each reaction, the solution was observed to see if a reaction occurred and the pH value of the resulting solution was tested using a pH

Read More
1085 Words | 5 Pages

Structural Features Acetaminophen is a molecule that is made of twenty atoms; its bonds consist of fourteen single bonds and four double bonds. Acetaminophen is also composed of clusters atoms with groups with names. First of all, part of an acetaminophen atom is a benzene ring. A benzene ring is a ring of six carbon atoms that are connected to each other by three double bonds and three single bonds and unusually all the bond are the same size. In addition, to make sure all the electrons in the outer valence are used the there are hydrogen atoms bonded to stabilize the carbon atoms.

Read More
1027 Words | 5 Pages

The probe was cleaned with distilled water and dried before placing into the unknown solution. The solution was .500+-.0005g of the unknown compound dissolved in 20+-0.5mL of water contained in a 40 mL beaker. A 10 mL graduated cylinder was used to measure accurately. The conductivity of the unknown compound was recorded and then the probe was removed and cleaned. Next, the probe was placed in potassium nitrate solution.

Read More
154 Words | 1 Pages

Pediatric dosing for Acetaminophen for child < 60 kg is 10 to 15 mg/kg/dose orally every 4-6 hours. A maximum dose of 75 mg/kg/day in infants. This medication is contraindicated if the child has active or severe hepatic disease.

Read More
378 Words | 2 Pages

After reading over the information provided it is clear that ET and the physician have a right to be concerned. It appears as though EF relied on medication a little too much. As a result, it’s likely that she’s suffering from liver disease, which can be caused by an overdose in medications. In order to properly diagnose what was wrong with EF it’s important to look at the ingredients that make up the numerous medications she was consuming. Even more importantly, when looking at the ingredients it’s crucial to keep an eye out for acetaminophen, which can also be written as APAP.

Read More
1348 Words | 6 Pages

Introduction: The unknown acid molarity will be determining by titration method. Titration is a process depends on concentration of known solution to another solution until the solute in the another solution completely react. Standard solution is the solution of known concentration that used in titration. In this experiment, NaOH was the titrant (base) however, the two analyte which used were HCl and H2SO4.

Read More
424 Words | 2 Pages

The main objective of this experiment was the formation of phenacetin from the synthesis of acetaminophen. This was done through a chemical reaction known as the Williamson ether synthesis using techniques of refluxing, vacuum filtration and recrystallization incorporating a mixed solvent system. A further objective of this experiment was to study the formation of the product (phenacetin). Such validation was completed by using techniques for determining the melting point, calculating percent yield, and IR (infrared spectroscopy) of the resultant product.

Read More
1982 Words | 8 Pages

For this, 25 mL of pH 4 and pH 7 buffers were taken in 50 mL or 100 mL beakers. The buffer solutions were saved in case the electrode needed to be re-calibrated later on. The potassium acid phthalate solution was titrated with 0.1 M NaOH.

Read More

More about Acetaminophen Powder

Open Document