Question

Consider the following statements as they apply to atomic absorption spectroscopy. Decide if each is true or false.
True or False  The lower the surface tension of a solution, the smaller the droplets formed in the nebulizer.
True or False  In flame AAS, a liquid sample is sucked into the flame because of the pressure drop created by the flow of gas around the tip of the capillary tube (the Bernoulli effect).
True or False  Electrothermal AAS is a much more sensitive technique than flame AAS.
True or False  AAS and AES are most commonly used to measure concentrations of non-metals.
True or False  The interzonal area of the flame is the most widely used area of the flame for spectroscopy because it is rich in free atoms.

Answer 1

• (True or False). The lower the surface tension of a solution, the smaller the droplets formed in the nebulizer.

TRUE.

• (True or False). In flame AAS, a liquid sample is sucked into the flame because of the pressure drop created by the flow of gas around the tip of the capillary tube (the Bernoulli effect).

TRUE.

• (True or False). Electrothermal AAS is a much more sensitive technique than flame AAS.

TRUE.

• (True or False). AAS and AES are most commonly used to measure concentrations of non-metals.

FALSE.

• (True or False) . The interzonal area of the flame is the most widely used area of the flame for spectroscopy because it is rich in free atoms.

TRUE.