价格:未填
品牌:1356

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测定气氨纯度
测定气氨纯度  详细信息：

气氨纯度的测定采用传统的吸收测定法,此方法操作繁琐,分析时间长,样品用量多,而且测定结果受人为因素影响较大,如吸收时气体流速的大小,液位读数的偏差及标准溶液滴定、终点判断等都会对测定结果造成较大的误差,而且吸收管有时密封不严出现倒吸现象,导致分析失败或结果不准确。

浩瀚色谱（山东）应用技术开发有限公司改用气相色谱法测定氨气中氨纯度的分析方法,用HH-NH3-C2H2氨专用填充色谱柱对样品进行分离,用热导检测器检测分离物,用外标法作定量计算,测定结果的大相对标准偏差为0.2%。该方法分析速度快、操作简单,重复性好,准确度高。可以满足生产要求,还可降低员工的人身伤害。

名称：填充柱
固定相：专用
规格：2m*1/8
型号：HH-NH3-C2H2


测定气氨纯度   测试谱图：



Determination of gas ammonia purity
Determination of gas ammonia purity Details:

The traditional absorption measurement method is used to determine the purity of gas ammonia. This method is cumbersome to operate, takes a long time to analyze, requires a lot of samples, and the measurement results are greatly affected by human factors, such as the size of the gas flow rate during absorption, the deviation and standard of the liquid level reading. Solution titration, end point judgment, etc. will cause large errors in the measurement results, and sometimes the absorption tube is not tightly sealed and sucks back, resulting in analysis failure or inaccurate results.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. changed to gas chromatography to determine the analysis method of ammonia purity in ammonia gas, using HH-NH3-C2H2 ammonia special packed chromatographic column to separate the samples, and using a thermal conductivity detector to detect the separated substances. The external standard method was used for quantitative calculation, and the maximum relative standard deviation of the determination results was 0.2%. The method has the advantages of fast analysis speed, simple operation, good repeatability and high accuracy. It can meet the production requirements and reduce the personal injury of employees.

Name: Packed Column
Stationary Phase: Dedicated
Specifications: 2m*1/8
Model: HH-NH3-C2H2


Determination of gas ammonia purity Test spectrum: