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
钢研纳克 NX-200土壤重金属分析仪仪器特点：
l 前处理简单，可直接对干燥、均匀的粉状样品进行测试；
2 软件内置算法可以对土壤、水系沉积物等不同样品类型、不同颗粒度、不同含水量等进行校正；
3 NX-200S便携式土壤重金属仪能无任何耗材，*液体和气体，*化学试剂，无任何废水废气排放；
4 NX-200S土壤重金属仪可对土壤类样品中镉（Cd）、汞(Hg)、铅（Pb）、（As）、铬（Cr）、镍（Ni）、铜（Cu）、锌（Zn）等重金属元素进行，扩展至锰(Mn)、钛（Ti）、钡(Ba）、铷（Rb）、锶（Sr）、锆（Zr）、铁（Fe）等元素的；
5 采用可更换式锂离子电池，可用车载电源充电；
6 体积小、重量轻，便于携带，可户外作业；
7 仪器紧凑，触摸屏操作，界面简洁，使用方便；
8 软件权限分级：管理员模式、操作员模式。
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.
X 射线光管：65kV 风冷侧窗 X 射线管
■ 高压电源：65kV/100W 高精度数字控制
■ 探测器：原装进口一体封装，分辨率可达 125eV（5.889keV）
■ 电源：AC（220±22）V，50/60Hz，1.0A
■ 仪器尺寸：450Wx500Lx380H（mm）
■ 工作环境：-20~40℃
■ 自动进样（选配）：84 位
■ 操作简便，一键傻瓜式测试；
■ 方便携带，可实现普通轿车车载运输；
■ NX-200土壤重金属分析仪可以对土壤中的重金属元素进行测试；
■ 前处理简单，可直接对土壤样品进行；
■ NX-200土壤重金属分析仪*任何耗材；
■ 批量，可以与多达 84 位的自动进样器联用。
http://xjr003.cn.b2b168.com
