Method of Determining Iron Content in Galvanized Coating of Zinc-Iron Alloy
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Iron content in a galvanized coating of zinc-iron alloys was determined using atomic absorption spectrometry and two X-ray fluorescence (XRF) methods (fundamental parameter and empirical coefficient methods). Results indicated that the chemical method provided the highest accuracy in measuring iron content. However, it suffered from a low detection efficiency, making it less suitable for use in production quality control. In contrast, the two XRF methods (fundamental parameter and empirical coefficient methods) offered viable alternatives for monitoring iron levels in galvanized coatings during manufacturing, with repeatability of 0.2% and 0.4%, respectively, superior to the 0.6% repeatability observed with the chemical method. However, it is important to note that the accuracy of these two XRF methods (fundamental parameter and empirical coefficient methods) could vary depending on the stability of processing units involved, potentially leading to less reliable results compared to the chemical method. Therefore, while the two XRF methods (fundamental parameter and empirical coefficient methods) are useful for rapid quality control, their applications should be carefully managed. They should be supplemented with more accurate techniques when necessary.
Abstract
Iron content in a galvanized coating of zinc-iron alloys was determined using atomic absorption spectrometry and two X-ray fluorescence (XRF) methods (fundamental parameter and empirical coefficient methods). Results indicated that the chemical method provided the highest accuracy in measuring iron content. However, it suffered from a low detection efficiency, making it less suitable for use in production quality control. In contrast, the two XRF methods (fundamental parameter and empirical coefficient methods) offered viable alternatives for monitoring iron levels in galvanized coatings during manufacturing, with repeatability of 0.2% and 0.4%, respectively, superior to the 0.6% repeatability observed with the chemical method. However, it is important to note that the accuracy of these two XRF methods (fundamental parameter and empirical coefficient methods) could vary depending on the stability of processing units involved, potentially leading to less reliable results compared to the chemical method. Therefore, while the two XRF methods (fundamental parameter and empirical coefficient methods) are useful for rapid quality control, their applications should be carefully managed. They should be supplemented with more accurate techniques when necessary.
참고문헌 (16)
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