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An atomic absorption spectrophotometer is a type of analytical instrument used to measure the concentration of specific elements in a sample by analyzing the absorption of light. It operates on the principle that atoms absorb light at characteristic wavelengths, allowing for the quantification of elements in various materials. These instruments are typically constructed from durable materials such as aluminum and stainless steel, and they utilize light sources, monochromators, and detectors to perform their analyses.
| Wavelength range | 190 nm to 900 nm |
| Detection limit | ppm to ppb levels |
| Sample types | Liquids, solids, and gases |
| Power supply | AC power, typically 110-240V |
| Data output | Digital output via USB or RS-232 |
When selecting an atomic absorption spectrophotometer, consider the specific elements you need to analyze, as different models may have varying capabilities. It's important to specify the required detection limits, sample types, and any necessary certifications for your industry. Additionally, inquire about the availability of accessories such as atomizers and standards, as well as the support for software integration for data analysis.
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It measures the absorption of light by free atoms in the gas phase to determine element concentrations.
Both liquid and solid samples can be analyzed, often requiring sample preparation.
Calibration should be performed regularly, typically daily or before each use, depending on the application.
Commonly detected elements include metals like lead, copper, and zinc, among others.
Yes, proper training is recommended to ensure accurate results and safe operation.
With proper maintenance, these instruments can last several years, often 10 years or more.