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目的建立用便携式X射线荧光光谱仪快速筛查硫熏八角的方法。方法选定土壤模式测定干燥后新鲜八角含硫量,测定时间80 s,测得硫含量为905~1852 mg/kg。将干燥后新鲜八角含硫量作为参照值,对市售干八角是否硫熏进行快速筛查。同时,按农业部标准检验上述市售八角,并进行判定。结果 8批市售干八角中,7批含硫量远超出参照值,为硫熏八角。1批样品的含硫量在参照值内,为未硫熏的八角。该结果和农业部标准判定结果一致。结论便携式X射线荧光光谱仪能快速准确地筛选出硫熏八角。
Objective To establish a rapid screening method for sulfur smoked anise by portable X-ray fluorescence spectrometer. Methods Soil samples were collected to determine the sulfur content of fresh star anise after drying. The determination time was 80 s, and the sulfur content was 905 ~ 1852 mg / kg. The dry octagonal sulfur content as a reference value, the dry sale of dried octagonal sulfur smoked fast screening. At the same time, according to the Ministry of Agriculture standard test the above-mentioned star anise, and make a decision. Results 8 batches of dried octagonal market, seven batches of sulfur far exceeded the reference value for sulfur smoked star anise. Sulfur content of a batch of samples within the reference value, not sulfur smoked octagonal. This result is consistent with the results of the Ministry of Agriculture standards. Conclusion Portable X-ray fluorescence spectrometer can quickly and accurately filter out sulfur smoked star anise.