History of Atomic Absorption Spectroscopy (AAS)
Atomic Absorption Spectroscopy (AAS) was first proposed by Alan Walsh, later known as Sir Alan in 1955. Sir Alan worked in Melbourne for the Commonwealth Scientific and Industrial Research Organization (C.S.I.R.O.).
This concept came to Alan Walsh in a flash of inspiration as he was gardening at his Melbourne home. This led to the invention that has since been labelled as one of the most significant achievements in chemical analysis for last century.
Atomic Absorption Spectroscopy(AAS) allows the measurement of extremely small amount of elements and is widely used in medicine, manufacturing, mining, environmental monitoring and laboratories all around the world. It is also used for the analysis of elements, particularly metallic elements, and is more commonly used than other methods. Therefore, it is also applicable to problems involving low concentrations of metal ions in aqueous solution. Not only has …show more content…
First of all, sample preparation for this technique is simple where some samples need no preparations at all. Besides, sensitivity of this technique is high. AAS can effectively measure all the way to parts per billion of a gram in a specific substance. In addition, the cost is lower compared to other methods. Since AAS generally consumes less argon than other methods, running costs are normally lower. Not only that, AAS is an appropriate method of yielding more accurate results, generally with a rate of 0.5-5%, or even better rate can be achieved if appropriate and suitable standards are used. Last but not least, AAS has better accessibility. This is because this process relies upon light absorption and radiation, previously inaccessible places is now possible to reach. For example, AAS can be used by miners to determine if a rock contains sufficient elements of gold or any other precious metals worth to be
Atomic Absorption Spectroscopy (AAS) was first proposed by Alan Walsh, later known as Sir Alan in 1955. Sir Alan worked in Melbourne for the Commonwealth Scientific and Industrial Research Organization (C.S.I.R.O.).
This concept came to Alan Walsh in a flash of inspiration as he was gardening at his Melbourne home. This led to the invention that has since been labelled as one of the most significant achievements in chemical analysis for last century.
Atomic Absorption Spectroscopy(AAS) allows the measurement of extremely small amount of elements and is widely used in medicine, manufacturing, mining, environmental monitoring and laboratories all around the world. It is also used for the analysis of elements, particularly metallic elements, and is more commonly used than other methods. Therefore, it is also applicable to problems involving low concentrations of metal ions in aqueous solution. Not only has …show more content…
First of all, sample preparation for this technique is simple where some samples need no preparations at all. Besides, sensitivity of this technique is high. AAS can effectively measure all the way to parts per billion of a gram in a specific substance. In addition, the cost is lower compared to other methods. Since AAS generally consumes less argon than other methods, running costs are normally lower. Not only that, AAS is an appropriate method of yielding more accurate results, generally with a rate of 0.5-5%, or even better rate can be achieved if appropriate and suitable standards are used. Last but not least, AAS has better accessibility. This is because this process relies upon light absorption and radiation, previously inaccessible places is now possible to reach. For example, AAS can be used by miners to determine if a rock contains sufficient elements of gold or any other precious metals worth to be