Ruestion 3 What is the moat modern detector for OES spectrometers? 1. Photomultiplier tubes 2. Photographic...
Course work ICP-OES (cont) 1. In atomic emission spectrometry list the emission sources used. Describe what is meant by a plasma and inductively coupled plasma. 2. What is the difference between an inductively coupled plasma and a direct current plasma? 3. List the components of an 1CP spectrometer. 4.Write notes on the sample introduction system. 5. Describe two configurations used for observing emission from the ICP
1. List three important products which are colloids. 16 pts latin C NaCi 2. Photographic film is AgBr in a gelatin layer. From the results obtained here, what is the purpose of the gelatin in films? 5 pts to protect the Film 3. Raw egg white is a colloidal suspension of proteins in water. What changes occur when an egg is cooked? Explain! 4 pts
enter the spectrometer. How close to the detector slit will they impact? 3. (a) What is the current through R? DATA: R = R2 R3= 15.0 22. V1 = 12.0 Volts. V2 = 3V1. (b) What is the current through R? (c) What is the current through Rz? detectors X X X X Fig. 1 Fig. 2 Fig. 3
Step 2
What is the total power received by the detector from a small,
deep hole drilled in the block, in W?
Step 3
What is the reflectivity of the block surface?
Step 4
What is the radiosity of the surface, in W/m2?
Step 5
What is the total power received by the detector from the small
area on the block surface, in W?
A small anodized aluminum block at 45°C is heated in a large oven whose walls are...
1. What is the purpose of the tubes that hang below the bars of marimbas and vibraphones? 2 . Oscilloscopes and spectrographs are scientific instruments that visualize what? 3. Why are low strings on a piano wound with copper or brass? 4. What is the difference between an orchestral tam-tam and a gong?
3) You are given 2 tubes of grown bacterial cultures-1 S. aureus and 1 E. coli. You accidentally wipe their names off of the tubes with alcohol and don't know which tube is which anymore. With only 2 MSA and 2 MacConkey plates you must determine which bacterial strain is in each tube. Explain what you would do and how you would detemine each strain's identity- describe the results on the plates including growth, color changes etc. and what the...
Modern supply chains have become______________. (S) 1. More complex 2. Interconnected 3. All other answers describe modern supply chains 4. Multilayered
1. what type of survivorship curve do modern human possess? 2. Would uou expect that there is a difference in the survivorship of men and women? Explain why, or why not? 3. Why do humans exhibit this type of surviorship curve? what factors are involved? 4. Why might obituaries be a poor source of data for determining a human surviorship curve?
1. List the four (4) basic qualities of modern protection relays. 2. In what applications would the following types of cable be used? XLPE PILC PVC Elastomeric
1. What is a dopant and how is it used in modern semiconductors 2. What is the difference total ionization and dielectric breakdown, at what temperature can we assume total ionization has occurred? 3. Write the Thermal Voltage Vr kT for the following temperatures: a. T 300K, Vr b.T 600K, Vr c. T 750K, Vr d. T 1200K, Vr e. T 150K, Vr 4. Draw the Density of States (DOS) as a function of Energy for a semiconductor, label the...