Method for detecting cadmium content in grain agricultural products

The invention discloses a method for detecting the content of cadmium in grain agricultural products, which comprises the following steps: S1, adding a deep eutectic solvent into dry sample powder, extracting under heating, and centrifuging to take supernate; s2, adding probe molecules and a buffer solution with a neutral pH value into the supernatant to obtain a to-be-detected solution; and S3, determining the cadmium metal content in the to-be-detected liquid by using a fluorescence spectrophotometric method. According to the detection method, the special hydrophilic DES is selected to be combined with the organic probe for detection, so that on the basis of simplifying sample pretreatment, the detection efficiency and accuracy are remarkably improved, and the detection cost is reduced. 本发明公开了粮食类农产品中镉含量的检测方法，步骤包括：S1.向干燥的样品粉末中加入低共熔溶剂，加热下萃取、离心取上清液；S2.向上清液中加入探针分子、pH值为中性的缓冲液得到待测液；S3.使用荧光分光光度法测定待测液液中的镉金属含量。所述检测方法通过选择特殊的亲水型DES结合有机探针进行检测，在简化样品前处理的基础上，显著提升检测效率和准确率，降低了检测成本。