China's industrial demand for high purity carbon dioxide is rapidly increasing, in which carbon dioxide laser, carbon dioxide protection welding, refrigeration technology and other industries must strictly control the trace amount of water in carbon dioxide. Due to the high concentration of carbon dioxide in the interference, the original analysis method such as Lu point method and cannot be used, and the current in the high concentration of carbon dioxide for trace water test report not. Therefore, the study in high concentration carbon dioxide
Tengzhou City Xiangying Analysis Technology Co., Ltd. the XiangyingGC7990plus gas chromatography method for the determination of trace water in pure carbon dioxide and successfully detected carbon dichloride at ppm levels in trace amounts of water. The minimum detectable amount of 0.1 ppm.
我国工业上对高纯度二氧化碳的需求迅速增长,其中二氧化碳激光、二氧化碳保护焊、制冷技术等工业必须严格控制二氧化碳中的微量水。由于高浓度二氧化碳的干扰,原有的分析法如璐点法等又不能移用,而目前在高浓度二氧化碳中微量水的测试方法报导不多,因此,研究在高浓度二氧化碳
滕州市翔鹰分析技术有限公司采用XiangyingGC7990plus气相色谱法测定纯二氧化碳中微量水,成功地检测了二氯化碳中ppm级的微量水,其***小检测量达0.1ppm。
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