Advantages and disadvantages of atomic absorption spectroscopy?

Answer 1

Advantages of GC-MS

• Shorter run times
• Greater sample throughput
• Cheaper columns
• Higher signal to noise ratio
• Lower bleed (thinner films)

Disadvantages of GC-MS

• Difficult to use for conventional GC/ MS
• Easy to overload the phase (less sample capacity)
• Careful attention required for splitless injections
• Conventional Van Deemter curves don't apply (high pressure drop)

Answer 2

From my understanding of this method of analysis,I believe the advantage of AAS lies in the fact that it can can be used to detect the presence of metals singly that is individually but its disadvantage is that it is an expensive method of analysis since one has to purchase different hollow cathode lamps for different metals.

Additional advantages of AAS, include;
1. Greater sensitivity and detection limits than other methods
2. Direct analysis of some types of liquid samples
3. Low spectral interference
4. Very small sample size