Why do direct emission spectrometers require standard samples?
When using direct emission spectrometers, customers often ask: Why do we need standard samples? Wouldn't it be more accurate to measure the product directly? These questions all involve reference materials. Let's share some information about reference materials.
In daily production, experimental research, scientific exploration, and other industries, people use a variety of instruments and measuring tools. So how do we ensure and measure the reliability and accuracy of these devices? A standard reference material is essential for reference and comparison. This reference material can also be simply called a standard material.
The Role of Standard Materials
1. Serves as a calibration material for instrument calibration. Because chemical analysis instruments are generally designed for relative measurement methods, standard materials must be used for calibration or to create a "standard curve" before or during use.
2. Serves as a known substance for evaluating measurement methods. When measurements are performed using different methods or instruments, known substances can help determine the reliability of the results obtained by the new method or instrument.
3. Serves as a control substance, analyzed simultaneously with the substance to be measured. When the analytical results obtained from a reference material agree with the value given in the certificate within specified limits, the analytical results for the substance being measured are proven reliable.
In direct emission spectrometers, a standard sample is a sample of known composition and concentration. By comparing it with the standard sample, the content of the compound in the sample being measured can be determined. Therefore, when using an direct emission spectrometer, the instrument must be calibrated to ensure its accuracy and reliability.
However, not all direct emission spectrometers require calibration with a standard sample. For example, in some cases, if the sample being measured has the same composition as the known sample, calibration with a standard sample is unnecessary. However, in most cases, calibration with a standard sample is essential because the sample being measured may be affected by environmental or other factors, resulting in increased error.
Furthermore, in some cases, calibration with a standard sample is necessary even if the sample being measured has the same composition as the known sample. For example, after long-term use or after changing to a new batch of reagents, the instrument may experience drift or changes. In these cases, recalibration is necessary to ensure its accuracy and reliability.
In short, it is crucial to have standard samples and perform calibration when using an direct emission spectrometer. Only by correctly using reference materials to test and adjust equipment can more accurate and reliable test results be achieved.
In this era of scientific research and innovation, Wuxi Qianrong is here for you. Research and innovation in precision instruments are inseparable from the accumulation and development of history. Wuxi Qianrong High-Speed Analytical Instruments Co., Ltd. was established in 2003. Relying on innovative technology to reach international markets, through continuous improvement, we have become a modern high-tech enterprise integrating R&D, manufacturing, and marketing. We serve schools, research institutions, and businesses in applications such as metal materials, machinery, casting, ores, ceramics, and new materials.
