laboratory glassware washer：Classification of technical specifications for atomic absorption spectrophotometers

The technical indicators of atomic absorption spectrophotometers are divided into two categories: functional technical indicators and performance technical indicators. Some manufacturers or users of atomic absorption spectrophotometers often attach great importance to the functional technical indicators of the instrument, while neglecting the performance technical indicators. They often put a lot of effort into the functional technical indicators when manufacturing or selecting atomic absorption spectrophotometers, resulting in the manufactured or selected atomic absorption spectrophotometers having complete functions, but poor performance technical indicators, insufficient sensitivity or stability of the instrument, which cannot meet the requirements of use.

The author believes that if the performance and technical indicators of atomic absorption spectrophotometers are not emphasized, significant analytical errors will occur during use due to poor instrument performance and technical indicators, resulting in inaccurate measurement data. This is the result of not understanding the difference and importance of functional and performance indicators.

Functional technical specifications of atomic absorption spectrophotometer

Functional technical indicators generally refer to the software of the instrument, such as control, data processing, automation level, background deduction method, etc. It is an important component of modern atomic absorption spectrophotometers and one of the important technical indicators for measuring the level of atomic absorption spectrophotometers.

Performance technical indicators of atomic absorption spectrophotometer

Performance technical indicators refer to the indicators of the accuracy of the impact analysis and testing of atomic absorption spectrophotometers. For example, wavelength accuracy, spectral bandwidth, characteristic concentration, characteristic quantity, noise, detection limit, precision (RSD), baseline drift, etc., are the most important factors that affect the analysis error of users and the reliability of analysis results, and are very important key technical indicators. Generally speaking, technical indicators should refer to performance technical indicators, but currently, many domestic and foreign scientific and technological workers have incomplete understanding of the performance technical indicators of atomic absorption spectrophotometers. Many users tend to prioritize functional technical indicators over performance technical indicators when evaluating or selecting atomic absorption spectrophotometers. This issue should be highly valued by users of atomic absorption spectrophotometers.

The technical specifications of atomic absorption spectrophotometers are very important, as they are the key to manufacturing high-end atomic absorption spectrophotometers and making good use of them. Both instrument designers and users must attach great importance to the technical specifications of atomic absorption spectrophotometers.