Metal Element Analyzer Selection and Use Common sense
2024-01-08 08:07:03
Metal element analyzer is a kind of universal measuring instrument commonly used in the physicochemical analysis of enterprises. Because it is easy to use and fast to test, it is widely used in field analysis and can quantitatively detect the percentage of metal elements in metal or non-metal materials. test. Has been widely used in metallurgy, casting, machinery, chemical industry, environmental protection, quality inspection and other industries, can be easily and quickly for raw material acceptance, furnace analysis, product testing and other aspects of product testing.
The metal element analyzer is a kind of metrology analysis instrument. Based on the colorimeter and the spectrophotometer, it has the advantages of simple structure, relatively low price, easy operation and convenient maintenance, and is within the preset or replacement wavelength measurement range. After the metal elements of the sample are dissolved and color developed, the measurement data can be easily obtained. It can store, modify, and extract the standard curve. This can provide convenient and quick measurement results and reduce the use of Calibration of the standard sample, comparison of results and other work links, and can greatly reduce the use of consumables, save a lot of test costs for the enterprise, it can use the printer to output the results, measurement stability, data is true, its product reference standards according to national standards The regulations can meet the needs of enterprise product quality supervision. However, the current photoelectric element analyzers, including more advanced models, generally have the following defects:
1. The measurement wavelength is preset and cannot be adjusted continuously. The three channels can only be preset to three wavelengths. Although some models can be replaced (by replacing filters or light-emitting diodes), it is still cumbersome for users. This is particularly inconvenient when you are measuring elements that measure more than the number of instrument channels or when you want to detect different alloy materials.
2. The measurement light source is mostly a DC bulb plus a filter or a cold light emitting diode, and its wavelength accuracy is poor. The wavelength accuracy of the DC bulb plus filter method depends on the filter. The interference filter is rarely used in the elemental analyzer due to its high price, and the cut-off type filter mostly used in the elemental analyzer is the best one. Can only reach ± ​​20nm. The wavelength accuracy of light-emitting diodes depends on the diodes used. Most errors range from 20 to 30 nm, and a few of them have been custom-made (such as the company) with an error of ±5 nm, but not all wavelengths in the range of 400 to 750 nm can be set. This will make it difficult to measure certain specific elements. Although some manufacturers have adopted different wavelength light sources and introduced copper alloys, aluminum alloys, and other analyzers for different purposes, they cannot be solved fundamentally, thus limiting the use of elemental analyzers.
The metal element analyzer is a kind of metrology analysis instrument. Based on the colorimeter and the spectrophotometer, it has the advantages of simple structure, relatively low price, easy operation and convenient maintenance, and is within the preset or replacement wavelength measurement range. After the metal elements of the sample are dissolved and color developed, the measurement data can be easily obtained. It can store, modify, and extract the standard curve. This can provide convenient and quick measurement results and reduce the use of Calibration of the standard sample, comparison of results and other work links, and can greatly reduce the use of consumables, save a lot of test costs for the enterprise, it can use the printer to output the results, measurement stability, data is true, its product reference standards according to national standards The regulations can meet the needs of enterprise product quality supervision. However, the current photoelectric element analyzers, including more advanced models, generally have the following defects:
1. The measurement wavelength is preset and cannot be adjusted continuously. The three channels can only be preset to three wavelengths. Although some models can be replaced (by replacing filters or light-emitting diodes), it is still cumbersome for users. This is particularly inconvenient when you are measuring elements that measure more than the number of instrument channels or when you want to detect different alloy materials.
2. The measurement light source is mostly a DC bulb plus a filter or a cold light emitting diode, and its wavelength accuracy is poor. The wavelength accuracy of the DC bulb plus filter method depends on the filter. The interference filter is rarely used in the elemental analyzer due to its high price, and the cut-off type filter mostly used in the elemental analyzer is the best one. Can only reach ± ​​20nm. The wavelength accuracy of light-emitting diodes depends on the diodes used. Most errors range from 20 to 30 nm, and a few of them have been custom-made (such as the company) with an error of ±5 nm, but not all wavelengths in the range of 400 to 750 nm can be set. This will make it difficult to measure certain specific elements. Although some manufacturers have adopted different wavelength light sources and introduced copper alloys, aluminum alloys, and other analyzers for different purposes, they cannot be solved fundamentally, thus limiting the use of elemental analyzers.
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