一种使用波长色散X射线荧光光谱法测定谷物和豆类面粉中氯、磷和硫的快速方法。
A rapid method for the determination of chlorine, phosphorus, and sulfur in flours of grains and legumes using wavelength dispersive x-ray flourescence spectrometry.
作者信息
Pérez Ruiz T, Hernández Córdoba M, González R
机构信息
University of Murcia, Faculty of Sciences, Department of Analytical Chemistry, Spain.
出版信息
J Assoc Off Anal Chem. 1991 Jul-Aug;74(4):625-6.
A rapid method for the determination of chlorine, phosphorus, and sulfur in commercial flours of wheat, barley, maize, rice, field bean, and soybean by wavelength dispersive x-ray fluorescence spectrometry has been developed. The flours are strained through a 425 microns sieve, then pelletized and measured. The total analysis time for the quantitation of chlorine, phosphorus, and sulfur is less than 20 min per sample. Calibration is carried out using a standard additions method with mixed standards. The method is accurate and precise, and appears to be adequate for routine analyses.
已开发出一种通过波长色散X射线荧光光谱法快速测定小麦、大麦、玉米、大米、蚕豆和大豆商业面粉中氯、磷和硫的方法。将面粉通过425微米筛网过滤，然后制成颗粒并进行测量。每个样品中氯、磷和硫定量分析的总时间少于20分钟。使用混合标准品的标准加入法进行校准。该方法准确、精密，似乎适用于常规分析。
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