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This assignment need to perfect chemist analyzer.the description of my experiment is that previous work carried has established that silicone tubing can be used to monitor the release of lipophilic...

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This assignment need to perfect chemist analyzer.the description of my experiment is that previous work carried has established that silicone tubing can be used to monitor the release of lipophilic compounds from plant roots. my current Experiment perform to further explore the dynamics of release of model lipophilic root exudates from plants in response to factors including microorganisms, soil nutrients, and competition with other plants. The file of experiment will be upload , and there is section of experimental data ( methods.so please read the methods section well and understand my current experiment. i want you to go through results and discussion , and write , analyze and discuss some results of the experiments.There are one figure and two tables summary just some results of the experiment , so I want you to write six pages to analyze and discuss the results.please write on the same uploaded file and focus all your discussion on my data and results, don't bring or talk information from other experiment, just focus on my data and experiment.I will also upload some picture for silicon rod,tubing and plants pot, so you can easily be familiar about my experiment .
so write four pages in the section results and discussion to write , analyze and discuss on the same uploaded file of experiment.
please be notified that the results in the section of results and discussion are just for two minor experiments ( just these two experiments you need to analyze and discuss) :
Comparison of a-Terthienyl sorption by silicone tubing and rods
Measurement of a-Terthienyl diffusion from large rods
but the major experiment ( pots of plants) results is not available
please don't include any pf the uploaded pictures in the report, and i want completely full four pages in the report
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Experimental section Comparison of a-Terthienyl sorption by silicone tubing and rods The initial experiment was performed to compare the sorption of a-Terthienyl by three different silicon materials. The silicon materials used were small rods (0.1 cm × 1 cm), large rods (0.25 cm × 1cm), and small diameter tubing (50 cm ×0.032 cm). To measure how effective each of the methods to trap a-Terthienyl , sand spiked with 500 ug a-Terthienyl was prepared XXXXXXXXXXmg) of a-Terthienyl was dissolved with methanol, and then the solution was mixed with (30.0 g) of sand. The mixture was mixed well and was divided into three small jars (10 g each). The concentration of a-Terthienyl in each jar was 500 ug/g. Then four 0.5 m tubes (r = 0.032 cm) were added to the first jars, two 1 cm large rods (r= 0.25 cm) were added to the second jars, and eight small rods (r = 0.1 cm) to the third jars. The jars were covered by Al foil to keep a-Terthienyl from sunlight. The jars left over night to mix well by rotating slowly. In the next day, the rods and tubes were taken out from jars and washed by water. After that, each piece of rods and tubes was placed in vials and soaked in 2.00 ml of methanol. The solutions were sonicated for 15 min to extract the a-Terthienyl from the silicon. Then syringe and 0.22 um filter were used to transfer the samples from vials to smaller vials for analysis by HPLC. Samples of the large rod had to be diluted by a factor of four. The stock solution of a-Terthienyl was 1000 mg /L . A working standard of approximate 10 mg/L was used daily to insure proper calibration of samples. The response of a-Terthienyl is linear up to 64 mg/L. Preparation of pots The total of sixteen pots were prepared for sampling, four pots with silicon microtubing (STME) and twelve pots for large rods. Each of the four STME pots had two syringe barrels wrapped with 1.1 m of silicon tubing set up and each pot of the twelve has two pieces of 72mm large rods. Therefore, the total numbers...

Answered Same Day Dec 22, 2021

Solution

Robert answered on Dec 22 2021
128 Votes
DISCUSSIONS
Comparison of a-Terthienyl sorption by silicone tubing and rods
From the cali
ation graph of α-Terthienyl standard is given in figure 1 and ,
it is clear that there is proportionality between the surface area and concentration
of the compound adso
ed. The graph fits for the equation for straight line as
y=139.5x where x is the concentration and y is the surface area. To study the
statistical feasibility of this cali
ation graph, R2 is determined, and it is well inside
the acceptable limits. Thus the statistical factors also explain the co
elation. As the
esults are an average of the two experiments, one original and other duplicate to
ensure reproducibility, the dependency of the values can be ensured. The graphical
observation can be explained on the basis of general features of adsorption that,
adsorption is a surface phenomena. It is the attraction between adso
ent and
adso
ate. More the surface area, more will be the extend of adsorption. Hence
when the area of the surface increases, adsorption of α-Terthienyl increases, which
explains the graph.
The surface area, volume and surface area volume ratio for small rod, large
od and the nano tube are presented in table 2. Among rods, the surface area
volume ratio for small rod is 21.01 and for large rod is 9.002. And for the ca
on
tube, the surface area volume ratio is 80.16.
The table 1 gives the summary of the results of α-Terthienyl sorption by
silicone rods and tubes. It contains the observations of the avergage mass, average
concentration in mg/L and average mass of Terthienyl in ug. For the small rod, the
average area is 3784, average concentration...
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