HH-SJSW-III硫专用柱 自动顶空-气相色谱法测定水中二硫化碳

名称：9种硫化物测定专用柱

型号：HH-SJSW-III

规格：3m*3mm

zui高使用温度：120°C

浩瀚色谱（山东）应用技术开发有限公司研究了自动顶空-气相色谱法(FPD+)直接测定水中二硫化碳,结果表明:使用HH-SJSW-III硫专用柱,在柱温35℃、顶空平衡温度80℃、平衡时间40 min、含盐量3.5 g条件下进行分析,二硫化碳色谱峰形好、灵敏度高;二硫化碳峰面积为浓度的二次方曲线,曲线方程为y=135.3x~2-412.2 x,相关系数为0.9999;方法检出限为0.30μg/L,测定下限为1.20μg/L,实验分析相对标准偏差在1.8%~4.3%,加标回收率为93.1%~109.9%。该方法检出限低,精密度好,准确度高;操作简单,分析速度快、效率高,不会带来其他污染。满足对地表水和废水的分析要求。

自动顶空-气相色谱法测定水中二硫化碳  测试谱图：


Determination of Carbon Disulfide in Water by Automatic Headspace-Gas Chromatography
Automatic Headspace-Gas Chromatography Method for the Determination of Carbon Disulfide in Water Details:

Name: 9 special columns for sulfide determination

Model: HH-SJSW-III

Specification: 3m*3mm

Maximum operating temperature: 120°C

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has studied the automatic headspace-gas chromatography (FPD+) method for direct determination of carbon disulfide in water. The results show that: the HH-SJSW-III special sulfur column is used at the column temperature of 35℃ and the headspace equilibrium temperature. Analyzed under conditions of 80℃, equilibrium time 40 min, and salt content 3.5 g, the carbon disulfide chromatographic peak shape is good and the sensitivity is high; the peak area of carbon disulfide is the quadratic curve of concentration, and the curve equation is y=135.3x~2-412.2 x , The correlation coefficient is 0.9999; the detection limit of the method is 0.30μg/L, the lower limit of determination is 1.20μg/L, the relative standard deviation of the experimental analysis is 1.8%~4.3%, and the recovery rate of standard addition is 93.1%~109.9%. This method has low detection limit, good precision and high accuracy; simple operation, fast analysis speed, high efficiency, and no other pollution. Meet the analysis requirements for surface water and wastewater.

Automatic headspace-gas chromatography for the determination of carbon disulfide in water Test spectrum: