• Use up to five lines to briefly compare the sample atomisation approach commonly used in flame atomic emission spectroscopy (FAES) with ICP-MS.
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- Use the data in Figure 4.8 to estimate the ratio of radiation intensity at 10,000 Å (infrared) to that at 5000 Å (visible) from a blackbody at 5000 K. How will this ratio change with increasing temperature? Explain how this change occurs.The first FTIR instruments used three different interferometer systems. Briefly, describe how it has been possible to simplify the optical systems in more contemporary instruments.Draw and label a schematic of an ICP-OES spectrophotometer. Briefly (point form is acceptable) explain the purpose or function of each component
- About Atomic spectroscopy a) Explain the fundamental difference between the two main types of atomic spectroscopy: atomic emission and atomic absorption. Also explain the main difference in instrumentation between these techniques. Draw a sketch as support. b) Explain the advantages of using emission measurements in an inductive coupled plasma (ICP) instead of flame emission measurements. Motivate! c) Measurement of mercury (for example in Värmland Lakes) can be performed with flameless atomic absorption spectroscopy. Measurement with this technique gives a detection limit of about 0.01 ppb to compare with the determination of mercury in a flame that has a significantly lower detection limit, about 200 ppb. Explain why the flameless technology is so much more sensitive for measuring mercury. Please answer very soon will give rating surely All questions answers neededA 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.Why is the blank solution needed in spectrophotometry? A. A blank solution is used to clean the spectrophotometer b. A blank solution is used to calibrate the spectrophotometer readings: they document the baseline response of the environment- instrument- sample system
- A reflection diffraction grating has 1294 grooves per mm, and 13.4 mm of illuminated area. What must be the separation (in nm) of two first-order spectral lines centered at 625 nm if they are to be resolved? (Answer should be to 4 decimal places)What are the processes of concentrate samples analysis in Uv-visible spectroscopy? Please shortly answer at your own words. Answer should be to the point.Atomic Spectroscopy (a) In terms of spectral shape, how are atomic spectra different from molecular spectra? What is the source of this difference? (b) Describe the decision-making process for picking a line for atomic emission analysis of a given analyte. (c) For quality assurance, spike recovery is not sufficient to establish confidence in an analytical procedure. Explain this statement. What should be done instead to demonstrate satisfactory performance of an instrumental method (including elemental analysis). (d) Find a literature example of atomic spectroscopy used for elemental analysis. State the operating conditions with sufficient detail to reproduce the analysis; Please answer very soon will give rating surely All questions complete Answer needed Please help me
- Is standardization against primary standard required for polarography?using the following information to construct a valid hypothesis addressing the effect of pH and temperature on the hydrolysis of starch. Per bench, prepare the stock amylase enzyme solution by adding distilled water to the powdered enzyme in the flask , each bench will share one flaks of enzyme solution. per groups, turn on the spectrometer and set the wavelength to 560nm.allow the instruments to warm up for at least 10 minutes. per group, set up 17 cuvettes in a Styrofoam rack. Add 3 drops of iodine (IKI) to each coveter. per group, prepare the “black” cuvette by rapidly adding 3 mL of maltose standard solution to one of The prepared cuvettes containing IKI. Rapid addition of the maltose will mix the maltose and IKIWhat safety precaution are needed when working with a.) centrifuge b.) Inductively Coupled Plasma mass spectrometry (ICP-MS) c.) stirring hot plate