品牌钢研纳克
型号NX200s
仪器类型便携式
元素28种
分析时间3min
Multi-elemental Analysis by NCS NX-200 Energy Dispersion X-ray Fluorescence Spectrometry and Its Application on the Traceability of Soybean
Origin
a College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
b Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
Accepted:
Feb. 6, 2020; Published: Feb. 25, 2020.
Considering the lower analytical sensitivity, numerous ED-XRF manufacturers are committed to improve the instrumental performance.37 For example, the NX-100S ED-XRF from NCS Testing Technology Co., Ltd.(Beijing, China) have been reported to detect Cd in soil and food samples as low as < 0.1 mg kg-1. These ED-XRF instruments can be attached to a car or be loaded into a special suitcase for on-site use with a battery.
Therefore, in this work, a miniaturized ED-XRF was used for the multi-elemental analysis of soybean samples from five main producing areas in northern China (the
Heilongjiang, Liaoning, Inner Mongolia, Xinjiang, and Henan provinces) after establishing instrumental optimization and calibration. To analyze the analytical
results, the multi-layer perceptron belonging to artificial neural network was carefully studied and utilized to establish a provenance model. The ED-XRF proved to be
effective and efficient to measure micro and trace multi-elements for the fast identification of soybean origin.
为解决土壤重金属快检难题，钢研纳克X荧光土壤重金属分析仪NX-100S，NX-100S土壤重金属分析仪能有效应对国标GB15618《土壤环境质量 农用地土壤污染风险管控标准》限定的八种重金属需求，短三分钟可26种元素。
为解决土壤重金属快检难题，服务”土十条”的快速要求，钢研纳克研发了X荧光土壤重金属仪NX-200S，土壤重金属仪可对土壤中镉元素检出限低至0.28mg/kg，短三分钟可26种元素。
土壤重金属仪NX-200
NX-200可对土壤、水系沉积物等样品类型中20多种重金属元素进行快速测试和筛查，仪器具有前处理简单、操作简便、便于携带，自带锂离子电池，可户外作业等特点。
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