GUIDE QUESTIONS - REPORTING - EFP

EMISSION FLAME PHOTOMETRY

Modified TRUE or FALSE:

WRITE: A if BOTH A & B statements are correct
B if BOTH A & B statements are incorrect
C if the FIRST statement is TRUE and the SECOND statement FALSE.
D if the FIRST statement is FALSE and the SECOND statement TRUE.

1. This is true of EMISSION FLAME PHOTOMETRY:(EFP)
A. Used in the detection of metal salts, principally Na, K, Cl, Ba, & Zn.
B. The unknown solution is aspirated into the flame.

2. This is true of Direct Method:
A. Simplest arrangement for measuring the intensity of the emitted light.
B. Direct measurement of analyte in unknown solution.

3. This is true of the internal standard for EFP:
A. cesium is the most commonly used standard
B. it requires more elaborate systems

4. True of EFP:
A. A small percentage of the atom is transformed to an excited state permanently
B. it is used in detection of metal salts

Enumeration:

5 - 7. Name 3 (three) reasons why EFP is commonly used:
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Match Column A with Column B

8, calcium A. yellow
9. potassium B. violet
10. sodium C. red

ANSWERS:

1. D
2. A
3. D
4. D
5. less expensive
6. easier to perform
7. faster TAT (turn around time)
8. C
9. B
10. A