The Effect Of Rha On Ceramic Beads Adsorption

After the serial dilutions of the red and blue dyes were taken, the molarity and absorbance for both dyes were calculated. Using the MiVi = MfVf equation, the concentrations for each value of the red and blue dye were separately calculated. Calculating absorbances calls for setting the correct wavelengths of light for each dye. In this case, the 470 nm wavelength for red dye and the 635 nm wavelength for blue dye was needed to find the maximum absorbances. The absorbance was found by blanking the colorimeter and entering the concentrations. After both values of the absorbances and concentrations were found, the values were then graphed in order to obtain the equation of the relationship between absorbance and concentration.

With these absorbance numbers a concentration curve was constructed and the unknown solution was determined by finding the point of absorbance on the curve.

3ml of sample was taken first flask at 4 minutes and added to the appropriate tube of sodium hydroxide, from the second flask at 4.5 minute and so on, each flask was sampled at 30 second intervals. The sampling was then repeated starting at 8,12,16 minutes. The final sample from the last flask was taken at 18.5 minutes. Once the sampling was completed, measurements of absorbance were obtained for solution in each tube at 405 nm.

The ending result of this experiment confirms that as five test tubes are lined up with the varying level of absorbance, different results in the level of absorbance will appear as well, this is visible in above table. Thus, this is due to the varying amount of water in the solution. The blank sample had a 0.30 in its level of absorbance.

In this experiment, there were 6 different test tubes, each containing a different amount of phosphate concentration. Using a balance, 1 g of phosphate in a 400 mL beaker was measured and then inserted into a 100 mL graduated cylinder. 5 mL of ammonium vanadomolybdate (AVM) was added, along with deionized water until the solution reached to 25 mL. Then the solution was poured into one of the six test tubes. Another test tube contained 2 g of phosphate (phosphate was again measured using the balance) and the step described earlier was repeated until five of the six test tubes were filled, each with the same volume of 25 mL. The sixth test tube was filled with only deionized water, with 25 mL as the volume. A spectrophotometer was then used to determine the percent transmittance for each solution. The absorbance was also calculated using the equation A = -log (T). Each given amount of phosphate was converted into moles and then applied the value of .025 L for the volume to calculate the molarity of phosphate in each solution.

The purpose of this experiment is to prepare Allura Red standard solutions, use a colorimeter to measure the absorbance value of each standard solution, find the relationship between absorbance and concentration of a solution and use the results of this experiment to determine the concentration of Allura Red

Kinetic parameters of adsorption of MB onto ZnO/CR Hence the adsorption rate of MB onto ZnO/CR is proportional to the concentration of MB sorbed, non-linear and linear Lagergren 's pseudo first-order (equations6 and 7) can be used to calculate the kinetic parameters. The experimental data of adsorption of MB onto ZnO/CR were treated by the non-linear equation of pseudo first-order (using fitting function builder of Origin software) to estimate the values of and from the plot of versus (Figure 9a).Then the values of converted to and plotted versus according to the linear equation of pseudo first-order equation to calculate the values of and

A Mohr pipette allowed for the accurate measuring of a standard solution, by recording the final and initial pipette readings of 0.200 M Fe(NO3)3 and 0.00200 M KSCN. With Le Chatlier’s principle in mind, an excess of 0.200 M Fe(NO3)3 was used rather than 0.00200 M as a flooding technique to keep Fe(NO3)3 constant throughout the reaction and favor the products. To determine the equilibrium solutions, four 50 ml beakers were obtained by recording their final, initial, and total volume dispensed. Beaker 1 consisted of 5 ml Fe(NO3)3, 2 ml KSCN, and 3 ml H2O. Beaker 2 contained 5 ml Fe(NO3)3, 3 ml KSCN, and 2 ml H2O. Beaker 3 consisted of 5 ml Fe(NO3)3, 4 ml KSCN, and l ml H2O. Lastly, beaker 4 contained 5 ml Fe(NO3)3 and 5 ml KSCN. Next, the absorbance values were calculated by placing each solution into a 470 nm colorimeter, then using Logger Pro to determine the absorbance for each solution when given the concentration values. As seen in table 3, the absorbance value for the standard solution was 0.818 with a [Fe(SCN)2+] concentration of 2.00  10-4 M. To reduce error, Mohr pipette readings were recorded to two decimal places and data was not recorded on the meniscus of the line. This allowed for a higher quality of recordings and the avoidance of biased

The absorbance is measured using a Plate reader and a Standard curve is generated. Also, the different types of pipetting techniques are assessed in this Assay.

From the results, we can conclude that 0.9mM ONPG solution has the highest absorbance value and 0.1mM ONPG solution has the least absorbance. However, 1.0mM ONPG solution, which has the highest concentration, does not have the highest

Teak furniture in Dallas, Jackson's Home & Garden introduces Domiziani a line of stone table and patio tops that are as resilient and sustainable as they are beautiful.

Comparison of the features of biosorption and bioaccumulation (Dhankhar and Hooda, 2011, Chojnacka, 2010, Vijayaraghavan and Yun., 2008, Ahluwalia and Goyal, 2007)

Talking about the interest of this report i.e. use of Ceramics in Filtration. During many industrial processes, a filtering step may be required to remove impurities and improve quality of the final product. Depending on the process, the filter may be

(Baskar et al, 2006) discussed about characterization and reuse of textile effluent treatment plant waste sludge in clay bricks. In this study the

To further investigate the adsorption process, various isotherms will be fitted on the experimental data. Equilibrium capacity, uptake of species, diffusion constants, and selectivity will be calculated. Based on these results, the nature of the adsorption process will be determined. Afterwards, a set