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- No need guideline answer if u provide guideline answer I will dislike ok Module Code & Title: CHM9011M Chromatography and Sep Sciences Description of Assessment Task and Purpose: To prepare an SOP for the GC-MS InstrumentInstrumental studies involve the calculation of the instruments' limit of detection (LOD) in addition to the calibration curve. a. What exactly is LOD? b. Why is it necessary to determine it? c. Hpw is it determined?What is the value of [S] with v = 0.5Vmax?
- 1.. What is the common factor between MS, SEM, and XPS? (Hint: It makes those techniques a good deal more expensive.)The intensities of flame emission lines can be influenced by a variety of instrumentalfactors including flame temperature, flow rate of solution, and nebulizer efficiency. In the flameemission determination of sodium, lithium is often added as an internal standard. The followingemission intensity data were obtained for solutions containing 5.00 ppm Na and 125 ppm Li.5.00 ppm Na 5.9 Intensity for Na 125 ppm Li 9.1 Intensity for LiA solution with an unknown amount of sodium and 125 ppm Li gave a sodium intensity of 4.4 and alithium intensity of 9.5. What is the concentration of sodium in the unknown?What is the actual or real-life application of electrogravimetric analysis? Include the specific methodology.
- Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 M HCl to give 250 mL of solution.A 10.00-mL aliquot was then diluted to 50.00 mL with the acid. The fluorescence intensity for the dilutedsample at 347.5 nm provided a reading of 196 on an arbitrary scale. A standard 100-ppm quinine solutionregistered 125 when measured under conditions identical to those for the diluted sample. Calculate the massin milligrams of quinine in the tablet.The velocity selector in the problem prior to this one is used in a mass spectrometer. Protons(with zero neutrons) are the most common hydrogen nuclei. Some hydrogen isotopes, however, haveeither one or two neutrons in addition to the proton. If a beam of hydrogen nuclei is shot into amagnetic eld of strength 2.0T and the nuclei do a u-turn after which they strike a detector, how farapart will the three isotopes be on the detector surface? Assume both protons and neutrons have amass of 1:67 10?27kg and e = 1:60 10?19C.Cont.A stock solution of analyte is made by dissolving 34.83 mg of copper (II) acetate hexahydrate(fw = 289.73 g/mol) in 25.00 mL of water. A second stock solution of internal standard is madeby dissolving 28.43 mg of germanium (I) acetate (fw = 190.74 g/mol) into 25.00 mL of water.These solutions are used to make a series of standards for flame atomic absorption analysiscalibration. The standard solutions (each 10.00 mL total volume) should have the followingconcentrations of copper: 10.00; 25.00; 50.00; 100.0; and 200.0 μM. Each calibration solutionshould also contain 50.00 μM of germanium. What is the analyte stock solution concentration? What is the internal standard stocksolution concentration?Complete this table.
- A sample of body serum is to be analysed for sodium by flame emission spectroscopy. 1.00cm' aliquot of serum was pipetted into each of two 50.0cm' volumetric flasks. The first flask was diluted to volume with deionised water. The absorbance of this first solution was0.350. To the second flask 10.0 cm' of a 25.0 ppm sodium standard was added and the flask made up to volume with deionised water. The absorbance of this second solution was 0.720.(i) Calculate the concentration of the sodium in the body serum in mg dm-3.2. a. State TWO (2) advantages of Inductively coupled plasma-optical emissionspectroscopy (ICP-OES) over Flame atomic absorption spectrosocpy (FAAS). b. What are the TWO (2) advantages of graphite furnace AAS (GFAAS)over flame AAS (FAAS)? c.https://www.youtube.com/watch?v=RBjpNu29nb8&ab_channel=BSchroderushttps://www.youtube.com/watch?v=Qo-zLCEHEg8&ab_channel=BSchroderus