CLS 332 Exam questions

Fill in the blanks: (3 marks)

 

1-   

................................  ……………………. were subsequently found to be due to the elements in outer core of the sun absorbing continuous light emitted from inner zones.

 

2-   

When a solution containing a……………….  ......................... is sprayed into flame a small fraction of atoms become thermally ……………… and ………………. light. However, most atoms remain in the ……………… State.

 

 

3-   

In AAS, the problem of background emission was solved by using ………………………..

 

4-   

In AAS the sample is usually introduced into the flame using a ……………. in which ……………….. effect was used.

 

 

5-   

…………………… and ………………..…are the most important factors affecting the efficiency of the nebulizer.

 

 

In AAS enumerate the following: (2 mark)

 

•      

The important characteristics of the flame are:

1-

2-

 

 

•      

Advantages of atomic flame spectrometry (AAS) over flame photometry (FP):

•      

1-

•      

2-

 

 

 

•      

Similarities of AAS and FP:

•      

1-

•      

2-

 

 

 

•      

Applications of AAS for biological samples:

•      

1-

•      

2-